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doc-exports/docs/cce/umn/CLASS.TXT.json
qiujiandong1 71d5c814e7 CCE UMN 20250311 version 
Reviewed-by: Eotvos, Oliver <oliver.eotvos@t-systems.com>
Co-authored-by: qiujiandong1 <qiujiandong1@huawei.com>
Co-committed-by: qiujiandong1 <qiujiandong1@huawei.com>
2025-06-16 14:58:53 +00:00

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[
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"title":"Service Overview",
"uri":"cce_productdesc_0000.html",
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{
"desc":"Cloud Container Engine (CCE) is a Kubernetes cluster hosting service for enterprises. It manages the entire lifecycle of containerized applications and delivers scalable,",
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"title":"What Is CCE?",
"uri":"cce_productdesc_0001.html",
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},
{
"desc":"CCE is a container service developed on Docker and Kubernetes. It offers a wide range of features that allow you to run containers on a large scale. CCE containers are hi",
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"title":"Product Advantages",
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},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"title":"Application Scenarios",
"uri":"cce_productdesc_0004.html",
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"code":"4"
},
{
"desc":"CCE clusters enable the management of both x86 and Arm resources. With CCE, you can effortlessly create Kubernetes clusters, deploy containerized applications, and effect",
"product_code":"cce",
"title":"Containerized Application Management",
"uri":"cce_productdesc_0007.html",
"doc_type":"usermanual2",
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},
{
"desc":"Shopping apps and websites, especially during promotionsLive streaming, where service loads often fluctuateGames, where many players may go online in certain time periods",
"product_code":"cce",
"title":"Auto Scaling in Seconds",
"uri":"cce_productdesc_0021.html",
"doc_type":"usermanual2",
"p_code":"4",
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},
{
"desc":"You may receive a lot feedback and requirements for your apps or services. You may want to boost user experience with new features. Continuous integration (CI) and delive",
"product_code":"cce",
"title":"DevOps and CI/CD",
"uri":"cce_productdesc_0017.html",
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},
{
"desc":"Multi-cloud deployment and disaster recoveryTo ensure high service availability, services need to be deployed on container services of multiple clouds. When a cloud is fa",
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"title":"Hybrid Cloud",
"uri":"cce_productdesc_0018.html",
"doc_type":"usermanual2",
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},
{
"desc":"CCE permissions management allows you to assign permissions to IAM users and user groups under your tenant accounts. CCE combines the advantages of IAM and RBAC to provid",
"product_code":"cce",
"title":"Permissions",
"uri":"cce_productdesc_0002.html",
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"code":"9"
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{
"desc":"This section describes the notes and constraints on using CCE.After a cluster is created, the following items cannot be changed:Number of master nodes: For example, a non",
"product_code":"cce",
"title":"Notes and Constraints",
"uri":"cce_productdesc_0005.html",
"doc_type":"usermanual2",
"p_code":"1",
"code":"10"
},
{
"desc":"CCE needs to be interconnected with the following cloud services. It requires permissions to access these cloud services.",
"product_code":"cce",
"title":"Related Services",
"uri":"cce_productdesc_0008.html",
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},
{
"desc":"A region and availability zone (AZ) identify the location of a data center. You can create resources in a specific region and AZ.Regions are divided based on geographical",
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"title":"Regions and AZs",
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{
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"title":"Product Bulletin",
"uri":"cce_bulletin_0000.html",
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"p_code":"",
"code":"13"
},
{
"desc":"Released: Oct 23, 2024CentOS has reached its end of maintenance (EOM) date, which means it will no longer receive updates or support. The CentOS public images on CCE are ",
"product_code":"cce",
"title":"EOM of CentOS",
"uri":"cce_bulletin_0098.html",
"doc_type":"usermanual2",
"p_code":"13",
"code":"14"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Security Vulnerability Responses",
"uri":"cce_bulletin_0169.html",
"doc_type":"usermanual2",
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},
{
"desc":"High-risk vulnerabilities:CCE fixes vulnerabilities as soon as possible after the Kubernetes community detects them and releases fixing solutions. The fixing policies are",
"product_code":"cce",
"title":"Vulnerability Fixing Policies",
"uri":"cce_bulletin_0011.html",
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},
{
"desc":"Recently, a security research team disclosed a privilege escalation vulnerability (CVE-2021-4034, also dubbed PwnKit) in PolKit's pkexec. Unprivileged users can gain full",
"product_code":"cce",
"title":"Linux Polkit Privilege Escalation Vulnerability (CVE-2021-4034)",
"uri":"CVE-2021-4034.html",
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},
{
"desc":"The Linux Kernel SACK vulnerabilities have been fixed. This section describes the solution to these vulnerabilities.On June 18, 2019, Red Hat released a security notice, ",
"product_code":"cce",
"title":"Notice on Fixing Linux Kernel SACK Vulnerabilities",
"uri":"cce_bulletin_0206.html",
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"title":"Getting Started",
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{
"desc":"This section describes how to use Cloud Container Engine (CCE) and provides frequently asked questions (FAQs) to help you quickly get started with CCE.Complete the follow",
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"title":"Introduction",
"uri":"cce_qs_0001.html",
"doc_type":"usermanual2",
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{
"desc":"Before using CCE, make the following preparations:Creating an IAM userObtaining Resource Permissions(Optional) Creating a VPC(Optional) Creating a Key PairIf you want to ",
"product_code":"cce",
"title":"Preparations",
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{
"desc":"This section describes how to quickly create a CCE cluster. In this example, the default or simple configurations are in use.If you have no clusters, click Create Cluster",
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"title":"Creating a Kubernetes Cluster",
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},
{
"desc":"You can use images to quickly create a single-pod workload that can be accessed from public networks. This section describes how to use CCE to quickly deploy an Nginx app",
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"title":"Deploying a Deployment (Nginx)",
"uri":"cce_qs_0003.html",
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{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"title":"Deploying WordPress and MySQL That Depend on Each Other",
"uri":"cce_qs_0007.html",
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},
{
"desc":"WordPress was originally a blog platform based on PHP and MySQL. It is gradually evolved into a content management system. You can set up your own blog website on any ser",
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"title":"Overview",
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"code":"25"
},
{
"desc":"WordPress must be used together with MySQL. WordPress runs the content management program while MySQL serves as a database to store data.You have created a CCE cluster th",
"product_code":"cce",
"title":"Step 1: Deploying MySQL",
"uri":"cce_qs_0004.html",
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},
{
"desc":"WordPress was originally a blog platform based on PHP and MySQL. It is gradually evolved into a content management system. You can set up your own blog website on any ser",
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"title":"Step 2: Deploying WordPress",
"uri":"cce_qs_0005.html",
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{
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"title":"High-Risk Operations",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"title":"Clusters",
"uri":"cce_10_0091.html",
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{
"desc":"Cloud Container Engine (CCE) is a Kubernetes cluster hosting service for enterprises. It manages the entire lifecycle of containerized applications and delivers scalable,",
"product_code":"cce",
"title":"Cluster Overview",
"uri":"cce_10_0430.html",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"title":"Cluster Version Release Notes",
"uri":"cce_10_0002.html",
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{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"title":"Kubernetes Version Release Notes",
"uri":"cce_10_0068.html",
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},
{
"desc":"CCE allows you to create Kubernetes clusters 1.31. This section describes the changes made in Kubernetes 1.31.New and Enhanced FeaturesAPI Changes and RemovalsEnhanced Ku",
"product_code":"cce",
"title":"Kubernetes 1.31 Release Notes",
"uri":"cce_bulletin_0099.html",
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"code":"33"
},
{
"desc":"CCE allows you to create Kubernetes clusters 1.30. This section describes the changes made in Kubernetes 1.30.New and Enhanced FeaturesAPI Changes and RemovalsEnhanced Ku",
"product_code":"cce",
"title":"Kubernetes 1.30 Release Notes",
"uri":"cce_bulletin_0095.html",
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},
{
"desc":"CCE allows you to create Kubernetes clusters 1.29. This section describes the changes made in Kubernetes 1.29.New and Enhanced FeaturesAPI Changes and RemovalsEnhanced Ku",
"product_code":"cce",
"title":"Kubernetes 1.29 Release Notes",
"uri":"cce_bulletin_0089.html",
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},
{
"desc":"CCE allows you to create Kubernetes clusters 1.28. This section describes the changes made in Kubernetes 1.28.Important NotesNew and Enhanced FeaturesAPI Changes and Remo",
"product_code":"cce",
"title":"Kubernetes 1.28 Release Notes",
"uri":"cce_bulletin_0068.html",
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"p_code":"32",
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},
{
"desc":"CCE allows you to create Kubernetes clusters 1.27. This section describes the changes made in Kubernetes 1.27 compared with Kubernetes 1.25.New FeaturesDeprecations and R",
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"title":"Kubernetes 1.27 Release Notes",
"uri":"cce_bulletin_0059.html",
"doc_type":"usermanual2",
"p_code":"32",
"code":"37"
},
{
"desc":"This section describes the changes made in Kubernetes 1.25 compared with Kubernetes 1.23.New FeaturesDeprecations and RemovalsEnhanced Kubernetes 1.25 on CCEReferencesKub",
"product_code":"cce",
"title":"Kubernetes 1.25 Release Notes",
"uri":"cce_bulletin_0058.html",
"doc_type":"usermanual2",
"p_code":"32",
"code":"38"
},
{
"desc":"This section describes the updates in CCE Kubernetes 1.23.Kubernetes v1.23 Release NotesFlexVolume is deprecated. Use CSI.HorizontalPodAutoscaler v2 is promoted to GA, an",
"product_code":"cce",
"title":"Kubernetes 1.23 Release Notes",
"uri":"cce_bulletin_0027.html",
"doc_type":"usermanual2",
"p_code":"32",
"code":"39"
},
{
"desc":"This section describes the updates in CCE Kubernetes 1.21.Kubernetes v1.21 Release NotesCronJob is now in the stable state, and the version number changes to batch/v1.The",
"product_code":"cce",
"title":"Kubernetes 1.21 (EOM) Release Notes",
"uri":"cce_bulletin_0026.html",
"doc_type":"usermanual2",
"p_code":"32",
"code":"40"
},
{
"desc":"This section describes the updates in CCE Kubernetes 1.19.Kubernetes v1.19 Release NotesvSphere in-tree volumes can be migrated to vSphere CSI drivers. The in-tree vSpher",
"product_code":"cce",
"title":"Kubernetes 1.19 (EOM) Release Notes",
"uri":"cce_whsnew_0010.html",
"doc_type":"usermanual2",
"p_code":"32",
"code":"41"
},
{
"desc":"This section describes the updates in CCE Kubernetes 1.17.All resources in the apps/v1beta1 and apps/v1beta2 API versions are no longer served. Migrate to use the apps/v1",
"product_code":"cce",
"title":"Kubernetes 1.17 (EOM) Release Notes",
"uri":"cce_whsnew_0007.html",
"doc_type":"usermanual2",
"p_code":"32",
"code":"42"
},
{
"desc":"In CCE clusters of v1.25, containerd is the default runtime for nodes, except for nodes running EulerOS 2.5. In addition, clusters of v1.25 or later no longer support Eul",
"product_code":"cce",
"title":"Patch Version Release Notes",
"uri":"cce_10_0405.html",
"doc_type":"usermanual2",
"p_code":"31",
"code":"43"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"title":"Creating a Cluster",
"uri":"cce_10_0298.html",
"doc_type":"usermanual2",
"p_code":"29",
"code":"44"
},
{
"desc":"CCE provides different types of clusters for you to select. The following table lists the differences between them.",
"product_code":"cce",
"title":"Comparison Between Cluster Types",
"uri":"cce_10_0342.html",
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"p_code":"44",
"code":"45"
},
{
"desc":"On the CCE console, you can easily create Kubernetes clusters. After a cluster is created, the master node is hosted by CCE. You only need to create worker nodes. In this",
"product_code":"cce",
"title":"Creating a CCE Standard/Turbo Cluster",
"uri":"cce_10_0028.html",
"doc_type":"usermanual2",
"p_code":"44",
"code":"46"
},
{
"desc":"kube-proxy is a key component of a Kubernetes cluster. It is used for load balancing and forwarding data between a Service and its backend pods.CCE supports the iptables ",
"product_code":"cce",
"title":"Comparing iptables and IPVS",
"uri":"cce_10_0349.html",
"doc_type":"usermanual2",
"p_code":"44",
"code":"47"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Connecting to a Cluster",
"uri":"cce_10_0140.html",
"doc_type":"usermanual2",
"p_code":"29",
"code":"48"
},
{
"desc":"kubectl is a command-line tool provided by Kubernetes, enabling you to manage cluster resources, view cluster status, deploy applications, and debug issues through the CL",
"product_code":"cce",
"title":"Accessing a Cluster Using kubectl",
"uri":"cce_10_0107.html",
"doc_type":"usermanual2",
"p_code":"48",
"code":"49"
},
{
"desc":"X.509 certificates are essential for verifying identities and encrypting communication within CCE clusters. These certificates enable authorized clients to access target ",
"product_code":"cce",
"title":"Accessing a Cluster Using an X.509 Certificate",
"uri":"cce_10_0175.html",
"doc_type":"usermanual2",
"p_code":"48",
"code":"50"
},
{
"desc":"Subject Alternative Name (SAN) enables certificates to be associated with multiple values, including IP addresses and domain names. A SAN is usually used by the client to",
"product_code":"cce",
"title":"Accessing a Cluster Using a Custom Domain Name",
"uri":"cce_10_0367.html",
"doc_type":"usermanual2",
"p_code":"48",
"code":"51"
},
{
"desc":"You can bind an EIP to an API server of a Kubernetes cluster so that the API server can access the Internet.Binding an EIP to an API server for Internet access can pose a",
"product_code":"cce",
"title":"Configuring a Cluster's API Server for Internet Access",
"uri":"cce_10_0864.html",
"doc_type":"usermanual2",
"p_code":"48",
"code":"52"
},
{
"desc":"In multi-tenant scenarios, CCE generates a unique credential (such as a kubeconfig file or an X.509 certificate) for each user to access their designated cluster. These c",
"product_code":"cce",
"title":"Revoking a Cluster Access Credential",
"uri":"cce_10_0744.html",
"doc_type":"usermanual2",
"p_code":"48",
"code":"53"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Managing a Cluster",
"uri":"cce_10_0031.html",
"doc_type":"usermanual2",
"p_code":"29",
"code":"54"
},
{
"desc":"Cluster configuration parameters are underlying rules that define node behavior, resource allocation, communication rules, and scaling policies in a distributed system. T",
"product_code":"cce",
"title":"Modifying Cluster Configurations",
"uri":"cce_10_0213.html",
"doc_type":"usermanual2",
"p_code":"54",
"code":"55"
},
{
"desc":"Cluster overload occurs when system load such as request volume or resource usage exceeds the system's processing capacity, leading to degraded performance or system fail",
"product_code":"cce",
"title":"Enabling Overload Control for a Cluster",
"uri":"cce_10_0602.html",
"doc_type":"usermanual2",
"p_code":"54",
"code":"56"
},
{
"desc":"A cluster scale specifies the maximum number of nodes a cluster can manage. If the current cluster scale cannot meet your requirements, you can scale it out.A cluster tha",
"product_code":"cce",
"title":"Changing a Cluster Scale",
"uri":"cce_10_0403.html",
"doc_type":"usermanual2",
"p_code":"54",
"code":"57"
},
{
"desc":"When creating a cluster, you can customize a node security group to centrally manage network security policies. For a created cluster, you can change its default node sec",
"product_code":"cce",
"title":"Changing the Default Security Group of a Node",
"uri":"cce_10_0426.html",
"doc_type":"usermanual2",
"p_code":"54",
"code":"58"
},
{
"desc":"Deleting a cluster will delete the workloads and Services in the cluster, and the deleted data cannot be recovered. Before performing this operation, ensure that related ",
"product_code":"cce",
"title":"Deleting a Cluster",
"uri":"cce_10_0212.html",
"doc_type":"usermanual2",
"p_code":"54",
"code":"59"
},
{
"desc":"Unexpected deletion of clusters can occur in practice, especially when multiple users share an account and accidentally delete clusters that do not belong to them. To pre",
"product_code":"cce",
"title":"Preventing Cluster Deletion",
"uri":"cce_10_0927.html",
"doc_type":"usermanual2",
"p_code":"54",
"code":"60"
},
{
"desc":"If a cluster is not needed temporarily, hibernate it to reduce costs.After a cluster is hibernated, resources such as workloads cannot be created or managed in the cluste",
"product_code":"cce",
"title":"Hibernating or Waking Up a Cluster",
"uri":"cce_10_0214.html",
"doc_type":"usermanual2",
"p_code":"54",
"code":"61"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Upgrading a Cluster",
"uri":"cce_10_0215.html",
"doc_type":"usermanual2",
"p_code":"29",
"code":"62"
},
{
"desc":"CCE strictly complies with community consistency authentication. It releases three Kubernetes versions each year and offers a maintenance period of at least 24 months aft",
"product_code":"cce",
"title":"Cluster Upgrade Overview",
"uri":"cce_10_0197.html",
"doc_type":"usermanual2",
"p_code":"62",
"code":"63"
},
{
"desc":"Before the upgrade, you can check whether your cluster can be upgraded and which versions are available on the CCE console. For details, see Cluster Upgrade Overview.Befo",
"product_code":"cce",
"title":"Before You Start",
"uri":"cce_10_0302.html",
"doc_type":"usermanual2",
"p_code":"62",
"code":"64"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Performing Post-Upgrade Verification",
"uri":"cce_10_0560.html",
"doc_type":"usermanual2",
"p_code":"62",
"code":"65"
},
{
"desc":"After a cluster is upgraded, check whether the cluster is in the Running state.CCE automatically checks your cluster status. Go to the cluster list page and confirm the c",
"product_code":"cce",
"title":"Cluster Status Check",
"uri":"cce_10_0568.html",
"doc_type":"usermanual2",
"p_code":"65",
"code":"66"
},
{
"desc":"After a cluster is upgraded, check whether nodes in the cluster are in the Running state.CCE automatically checks your node statuses. Go to the node list page and confirm",
"product_code":"cce",
"title":"Node Status Check",
"uri":"cce_10_0569.html",
"doc_type":"usermanual2",
"p_code":"65",
"code":"67"
},
{
"desc":"After a cluster is upgraded, check whether there are any nodes that skip the upgrade in the cluster. These nodes may affect the proper running of the cluster.CCE automati",
"product_code":"cce",
"title":"Node Skipping Check",
"uri":"cce_10_0567.html",
"doc_type":"usermanual2",
"p_code":"65",
"code":"68"
},
{
"desc":"After a cluster is upgraded, check whether its services are running properly.Different services have different verification mode. Select a suitable one and verify the ser",
"product_code":"cce",
"title":"Service Check",
"uri":"cce_10_0561.html",
"doc_type":"usermanual2",
"p_code":"65",
"code":"69"
},
{
"desc":"Check whether nodes can be created in the cluster.If nodes cannot be created in your cluster after the cluster is upgraded, contact technical support.",
"product_code":"cce",
"title":"New Node Check",
"uri":"cce_10_0565.html",
"doc_type":"usermanual2",
"p_code":"65",
"code":"70"
},
{
"desc":"Check whether pods can be created on the existing nodes after the cluster is upgraded.Check whether pods can be created on new nodes after the cluster is upgraded.After c",
"product_code":"cce",
"title":"New Pod Check",
"uri":"cce_10_0566.html",
"doc_type":"usermanual2",
"p_code":"65",
"code":"71"
},
{
"desc":"This section describes how to migrate services from a cluster of an earlier version to a cluster of a later version in CCE.This operation is applicable when a cross-versi",
"product_code":"cce",
"title":"Migrating Services Across Clusters of Different Versions",
"uri":"cce_10_0210.html",
"doc_type":"usermanual2",
"p_code":"62",
"code":"72"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Troubleshooting for Pre-upgrade Check Exceptions",
"uri":"cce_10_0550.html",
"doc_type":"usermanual2",
"p_code":"62",
"code":"73"
},
{
"desc":"The system automatically checks a cluster before its upgrade. If the cluster does not meet the pre-upgrade check conditions, the upgrade cannot continue. To avoid risks, ",
"product_code":"cce",
"title":"Pre-upgrade Check",
"uri":"cce_10_0549.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"74"
},
{
"desc":"Check the following items:Check whether the node is available.Check whether the node OS supports the upgrade.Check whether the node is marked with unexpected node pool la",
"product_code":"cce",
"title":"Node Restrictions",
"uri":"cce_10_0431.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"75"
},
{
"desc":"Check whether the target cluster is under upgrade management.CCE may temporarily restrict the cluster upgrade due to the following reasons:The cluster is identified as th",
"product_code":"cce",
"title":"Upgrade Management",
"uri":"cce_10_0432.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"76"
},
{
"desc":"Check the following items:Check whether the add-on status is normal.Check whether the add-on supports the target version.Scenario 1: The add-on malfunctions.Log in to the",
"product_code":"cce",
"title":"Add-ons",
"uri":"cce_10_0433.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"77"
},
{
"desc":"Check whether the current HelmRelease record contains discarded Kubernetes APIs that are not supported by the target cluster version. If yes, the Helm chart may be unavai",
"product_code":"cce",
"title":"Helm Charts",
"uri":"cce_10_0434.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"78"
},
{
"desc":"Check whether your master nodes can be accessed using SSH.There is a low probability that the SSH connectivity check fails due to network fluctuations. Perform the pre-up",
"product_code":"cce",
"title":"SSH Connectivity of Master Nodes",
"uri":"cce_10_0435.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"79"
},
{
"desc":"Check the node pool status.Check whether the node pool OS or container runtime is supported after the upgrade.Scenario: The node pool malfunctions.Log in to the CCE conso",
"product_code":"cce",
"title":"Node Pools",
"uri":"cce_10_0436.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"80"
},
{
"desc":"Check whether the Protocol & Port of the worker node security groups is set to ICMP: All and whether the security group rule with the source IP address set to the master ",
"product_code":"cce",
"title":"Security Groups",
"uri":"cce_10_0437.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"81"
},
{
"desc":"Check whether nodes need to be migrated.This issue is caused by either an error in the node's package pull component or the absence of key system components on the node, ",
"product_code":"cce",
"title":"Residual Nodes",
"uri":"cce_10_0439.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"82"
},
{
"desc":"Check whether there are discarded resources in the clusters.Scenario 1: The Service in the clusters of v1.25 or later has discarded annotation tolerate-unready-endpoints.",
"product_code":"cce",
"title":"Discarded Kubernetes Resources",
"uri":"cce_10_0440.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"83"
},
{
"desc":"Read the version compatibility differences and ensure that they are not affected. The patch upgrade does not involve version compatibility differences.",
"product_code":"cce",
"title":"Compatibility Risks",
"uri":"cce_10_0441.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"84"
},
{
"desc":"Check whether cce-agent on the current node is of the latest version.Scenario 1: The error message \"you cce-agent no update, please restart it\" is displayed.This issue oc",
"product_code":"cce",
"title":"CCE Agent Versions",
"uri":"cce_10_0442.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"85"
},
{
"desc":"Check whether the node's CPU usage is above 90%.Upgrade the cluster during off-peak hours.Check whether too many pods are deployed on the node. If yes, reschedule pods to",
"product_code":"cce",
"title":"Node CPU Usage",
"uri":"cce_10_0443.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"86"
},
{
"desc":"Check the following items:Check whether the key CRD packageversions.version.cce.io of the cluster is deleted.Check whether the cluster key CRD network-attachment-definiti",
"product_code":"cce",
"title":"CRDs",
"uri":"cce_10_0444.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"87"
},
{
"desc":"Check the following items:Check whether the key data disks on the node meet the upgrade requirements.Check whether the /tmp directory has 500 MB available space.During th",
"product_code":"cce",
"title":"Node Disks",
"uri":"cce_10_0445.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"88"
},
{
"desc":"Check the following items:Check whether the DNS configuration of the current node can resolve the OBS address.Check whether the current node can access the OBS address of",
"product_code":"cce",
"title":"Node DNS",
"uri":"cce_10_0446.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"89"
},
{
"desc":"Check whether the owner and owner group of the files in the /var/paas directory used by the CCE are both paas.Scenario 1: The error message \"xx file permission has been c",
"product_code":"cce",
"title":"Node Key Directory File Permissions",
"uri":"cce_10_0447.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"90"
},
{
"desc":"Check whether the kubelet on the node is running properly.Scenario 1: The kubelet status is abnormal.If the kubelet malfunctions, the node will be unavailable. Restore th",
"product_code":"cce",
"title":"kubelet",
"uri":"cce_10_0448.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"91"
},
{
"desc":"Check whether the node's memory usage is above 90%.Upgrade the cluster during off-peak hours.Check whether too many pods are deployed on the node. If yes, reschedule pods",
"product_code":"cce",
"title":"Node Memory",
"uri":"cce_10_0449.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"92"
},
{
"desc":"Check whether the clock synchronization server ntpd or chronyd of the node is running properly.Scenario 1: ntpd is running abnormally.Log in to the node and run the syste",
"product_code":"cce",
"title":"Node Clock Synchronization Server",
"uri":"cce_10_0450.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"93"
},
{
"desc":"Check whether the OS kernel version of the node is supported by CCE.Case 1: The node image is not a standard CCE image.CCE nodes run depending on the initial standard ker",
"product_code":"cce",
"title":"Node OS",
"uri":"cce_10_0451.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"94"
},
{
"desc":"Verify that the master nodes in your cluster have more than 2 CPU cores.The master nodes have only 2 CPU cores, which may lead to a cluster upgrade failure.Contact techni",
"product_code":"cce",
"title":"Node CPU Cores",
"uri":"cce_10_0452.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"95"
},
{
"desc":"Check whether the Python commands are available on a node.If the command output is not 0, the check fails.Reset the node or manually install Python before attempting the ",
"product_code":"cce",
"title":"Node Python Commands",
"uri":"cce_10_0453.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"96"
},
{
"desc":"Check whether the nodes in the cluster are ready.Scenario 1: The nodes are in the unavailable status.Log in to the CCE console and click the cluster name to access the cl",
"product_code":"cce",
"title":"Node Readiness",
"uri":"cce_10_0455.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"97"
},
{
"desc":"Check whether journald of a node is normal.Log in to the node and run the systemctl is-active systemd-journald command to obtain the running status of journald. If the co",
"product_code":"cce",
"title":"Node journald",
"uri":"cce_10_0456.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"98"
},
{
"desc":"Check whether the containerd.sock file is on the node. This file affects the startup of container runtime in the Euler OS.Scenario: The Docker used by the node is the cus",
"product_code":"cce",
"title":"containerd.sock",
"uri":"cce_10_0457.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"99"
},
{
"desc":"This check item is not typical and implies that an internal error was found during the pre-upgrade check.Perform the pre-upgrade check again.If it fails again, submit a s",
"product_code":"cce",
"title":"Internal Error",
"uri":"cce_10_0458.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"100"
},
{
"desc":"Check whether there are inaccessible mount points on the node.Scenario: There are inaccessible mount points on the node.If NFS (such as obsfs or SFS) is used by the node ",
"product_code":"cce",
"title":"Node Mount Points",
"uri":"cce_10_0459.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"101"
},
{
"desc":"Check whether the taint needed for cluster upgrade exists on the node.Scenario 1: The node is skipped during the cluster upgrade.If the version of the node is different f",
"product_code":"cce",
"title":"Kubernetes Node Taints",
"uri":"cce_10_0460.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"102"
},
{
"desc":"Check whether there are any compatibility restrictions on the current Everest add-on.There are compatibility restrictions on the current Everest add-on and it cannot be u",
"product_code":"cce",
"title":"Everest Restrictions",
"uri":"cce_10_0478.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"103"
},
{
"desc":"Check whether there are compatibility limitations between the current and target cce-controller-hpa add-on versions.There are compatibility limitations between the curren",
"product_code":"cce",
"title":"cce-hpa-controller Limitations",
"uri":"cce_10_0479.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"104"
},
{
"desc":"Check whether the current cluster version and the target version support enhanced CPU policy.Scenario: Only the current cluster version supports the enhanced CPU policy f",
"product_code":"cce",
"title":"Enhanced CPU Policies",
"uri":"cce_10_0480.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"105"
},
{
"desc":"Check whether the container runtime and network components on the worker nodes are healthy.Issue 1: CNI Agent is not active.If your cluster version is earlier than v1.17.",
"product_code":"cce",
"title":"Health of Worker Node Components",
"uri":"cce_10_0484.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"106"
},
{
"desc":"Check whether cluster components such as the Kubernetes component, container runtime component, and network component are running properly before the upgrade.Perform the ",
"product_code":"cce",
"title":"Health of Master Node Components",
"uri":"cce_10_0485.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"107"
},
{
"desc":"Check whether the resources of Kubernetes components, such as etcd and kube-controller-manager, exceed the upper limit.Solution 1: Reduce Kubernetes resources that are ne",
"product_code":"cce",
"title":"Memory Resource Limit of Kubernetes Components",
"uri":"cce_10_0486.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"108"
},
{
"desc":"The system scans the audit logs of the past day to check whether the user calls the deprecated APIs of the target Kubernetes version.Due to the limited time range of audi",
"product_code":"cce",
"title":"Discarded Kubernetes APIs",
"uri":"cce_10_0487.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"109"
},
{
"desc":"If IPv6 is enabled for a CCE Turbo cluster, check whether the target cluster version supports IPv6.CCE Turbo clusters support IPv6 since v1.23. This feature is available ",
"product_code":"cce",
"title":"IPv6 Support in CCE Turbo Clusters",
"uri":"cce_10_0488.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"110"
},
{
"desc":"Check whether NetworkManager of a node is normal.Log in to the node and run the systemctl is-active NetworkManager command to obtain the running status of NetworkManager.",
"product_code":"cce",
"title":"NetworkManager",
"uri":"cce_10_0489.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"111"
},
{
"desc":"Check the ID file format.",
"product_code":"cce",
"title":"Node ID File",
"uri":"cce_10_0490.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"112"
},
{
"desc":"When you upgrade a cluster to v1.19 or later, the system checks whether the following configuration files have been modified on the backend:/opt/cloud/cce/kubernetes/kube",
"product_code":"cce",
"title":"Node Configuration Consistency",
"uri":"cce_10_0491.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"113"
},
{
"desc":"Check whether the configuration files of key components exist on the node.The following table lists the files to be checked.Reset the node. For details, see Resetting a N",
"product_code":"cce",
"title":"Node Configuration File",
"uri":"cce_10_0492.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"114"
},
{
"desc":"Check whether the current CoreDNS key configuration Corefile is different from the Helm release record. The difference may be overwritten during the add-on upgrade, affec",
"product_code":"cce",
"title":"CoreDNS Configuration Consistency",
"uri":"cce_10_0493.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"115"
},
{
"desc":"Check whether the sudo commands and sudo-related files of the node are working.Scenario 1: The sudo command fails to be executed.During the in-place cluster upgrade, the ",
"product_code":"cce",
"title":"sudo",
"uri":"cce_10_0494.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"116"
},
{
"desc":"Whether some key commands that the node upgrade depends on are workingScenario 1: Executing the package manager command failed.Executing the rpm or dpkg command failed. I",
"product_code":"cce",
"title":"Key Node Commands",
"uri":"cce_10_0495.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"117"
},
{
"desc":"Check whether the docker/containerd.sock file is directly mounted to the pods on a node. During an upgrade, Docker or containerd restarts and the sock file on the host ch",
"product_code":"cce",
"title":"Mounting of a Sock File on a Node",
"uri":"cce_10_0496.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"118"
},
{
"desc":"Check whether the certificate used by an HTTPS load balancer has been modified on ELB.The certificate referenced by an HTTPS ingress created on CCE is modified on the ELB",
"product_code":"cce",
"title":"HTTPS Load Balancer Certificate Consistency",
"uri":"cce_10_0497.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"119"
},
{
"desc":"Check whether the default mount directory and soft link on the node have been manually mounted or modified.Non-shared diskBy default, /var/lib/docker, containerd, or /mnt",
"product_code":"cce",
"title":"Node Mounting",
"uri":"cce_10_0498.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"120"
},
{
"desc":"Check whether user paas is allowed to log in to a node.Run the following command to check whether user paas is allowed to log in to a node:If the permissions assigned to ",
"product_code":"cce",
"title":"Login Permissions of User paas on a Node",
"uri":"cce_10_0499.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"121"
},
{
"desc":"Check whether the load balancer associated with a Service is allocated with a private IPv4 address.Solution 1: Delete the Service that is associated with a load balancer ",
"product_code":"cce",
"title":"Private IPv4 Addresses of Load Balancers",
"uri":"cce_10_0500.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"122"
},
{
"desc":"Check the historical upgrade records of the cluster and confirm that the current version of the cluster meets the requirements for upgrading to the target version.Upgradi",
"product_code":"cce",
"title":"Historical Upgrade Records",
"uri":"cce_10_0501.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"123"
},
{
"desc":"Check whether the CIDR block of the cluster management plane is the same as that configured on the backbone network.The CIDR block of the management plane has been modifi",
"product_code":"cce",
"title":"CIDR Block of the Cluster Management Plane",
"uri":"cce_10_0502.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"124"
},
{
"desc":"CCE AI Suite (NVIDIA GPU) is involved in the upgrade, which may affect the GPU driver installation during the creation of a GPU node.The driver of CCE AI Suite (NVIDIA GP",
"product_code":"cce",
"title":"CCE AI Suite (NVIDIA GPU)",
"uri":"cce_10_0503.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"125"
},
{
"desc":"Check whether the default system parameter settings on your nodes are modified.If the MTU value of the bond0 network on your BMS node is not the default value 1500, this ",
"product_code":"cce",
"title":"Nodes' System Parameters",
"uri":"cce_10_0504.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"126"
},
{
"desc":"Check whether there are residual package version data in the current cluster.A message is displayed indicating that there are residual 10.12.1.109 CRD resources in your c",
"product_code":"cce",
"title":"Residual Package Version Data",
"uri":"cce_10_0505.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"127"
},
{
"desc":"Check whether the commands required for the upgrade are available on the node.The cluster upgrade failure is typically caused by the lack of key node commands that are re",
"product_code":"cce",
"title":"Node Commands",
"uri":"cce_10_0506.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"128"
},
{
"desc":"Check whether swap has been enabled on CCE nodes.By default, swap is disabled on CCE nodes. Check the necessity of enabling swap manually and determine the impact of disa",
"product_code":"cce",
"title":"Node Swap",
"uri":"cce_10_0507.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"129"
},
{
"desc":"Check item 1: Check whether there is an Nginx Ingress route whose ingress type is not specified (kubernetes.io/ingress.class: nginx is not added to annotations) in the cl",
"product_code":"cce",
"title":"NGINX Ingress Controller",
"uri":"cce_10_0508.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"130"
},
{
"desc":"Check whether the service pods running on a containerd node are restarted when containerd is upgraded.containerd on your node may need to be restarted. To minimize the im",
"product_code":"cce",
"title":"containerd Pod Restart Risks",
"uri":"cce_10_0510.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"131"
},
{
"desc":"Check whether the configuration of CCE AI Suite (NVIDIA GPU) in a cluster has been intrusively modified. If so, upgrading the cluster may fail.",
"product_code":"cce",
"title":"Key CCE AI Suite (NVIDIA GPU) Parameters",
"uri":"cce_10_0511.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"132"
},
{
"desc":"Check whether GPU service pods are rebuilt in a cluster when kubelet is restarted during the upgrade of the cluster.Upgrade the cluster when the impact on services is con",
"product_code":"cce",
"title":"GPU Pod Rebuild Risks",
"uri":"cce_10_0512.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"133"
},
{
"desc":"Check whether ELB listener access control has been configured using annotations for the Services in the current cluster.If so, check whether their configurations are corr",
"product_code":"cce",
"title":"ELB Listener Access Control",
"uri":"cce_10_0513.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"134"
},
{
"desc":"Check whether the flavor of the master nodes in the cluster is the same as the actual flavor of these nodes.This issue is typically caused by modifications made to the ma",
"product_code":"cce",
"title":"Master Node Flavor",
"uri":"cce_10_0514.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"135"
},
{
"desc":"Check whether the number of available IP addresses in the cluster subnet supports rolling upgrade.Rolling upgrade is not supported if there are not enough IP addresses in",
"product_code":"cce",
"title":"Subnet Quota of Master Nodes",
"uri":"cce_10_0515.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"136"
},
{
"desc":"Check whether an alarm is generated when a cluster is upgraded to v1.27 or later. Do not use Docker in clusters of versions later than 1.27.If your node's runtime is not ",
"product_code":"cce",
"title":"Node Runtime",
"uri":"cce_10_0516.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"137"
},
{
"desc":"Check whether an alarm is generated when a cluster is upgraded to v1.27 or later. Do not use Docker in clusters of versions later than 1.27.If your node pool's runtime is",
"product_code":"cce",
"title":"Node Pool Runtime",
"uri":"cce_10_0517.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"138"
},
{
"desc":"Check the number of images on your node. If there are more than 1000 images, it takes a long time for Docker to start, affecting the standard Docker output and functions ",
"product_code":"cce",
"title":"Number of Node Images",
"uri":"cce_10_0518.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"139"
},
{
"desc":"Check whether the target version supports secret encryption. If it does not, clusters that have this feature enabled cannot be upgraded to the target version.Secret encry",
"product_code":"cce",
"title":"Compatibility Check of Secret Encryption",
"uri":"cce_10_0520.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"140"
},
{
"desc":"Make sure that CCE AI Suite (NVIDIA GPU) and Ubuntu nodes are compatible before using them in a cluster. If the Ubuntu kernel is 5.15.0-113-generic, the driver of the GPU",
"product_code":"cce",
"title":"Compatibility Between the Ubuntu Kernel and GPU Driver",
"uri":"cce_10_0521.html",
"doc_type":"usermanual2",
"p_code":"73",
"code":"141"
},
{
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"desc":"An environment variable is a variable whose value can affect the way a running container will behave. You can modify environment variables even after workloads are deploy",
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"desc":"kube-proxy, which is responsible for forwarding intra-cluster traffic, adds the IP addresses of load balancers associated with the LoadBalancer Services to nodes' local f",
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"title":"Configuring Passthrough Networking for a LoadBalancer Service",
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"desc":"When creating a LoadBalancer Service using a shared load balancer, you can configure annotations for the load balancer listeners to obtain the client IP address.If a dedi",
"product_code":"cce",
"title":"Enabling a LoadBalancer Service to Obtain the Client IP Address",
"uri":"cce_10_0916.html",
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"desc":"You can customize the EIP bound to a load balancer that is automatically created by CCE by adding the kubernetes.io/elb.custom-eip-id annotation to a Service.A Kubernetes",
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"title":"Changing a Custom EIP for a LoadBalancer Service",
"uri":"cce_10_0924.html",
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"desc":"The ready status of the pod is associated with the ELB health check. After the health check is successful, the pod is ready. This association works with the strategy.roll",
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"title":"Setting the Pod Ready Status Through the ELB Health Check",
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"desc":"If a workload uses UDP for both load balancing and health check, enable ICMP security group rules for the backend servers.",
"product_code":"cce",
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"desc":"Services allow internal and external pod access, but not the following scenarios:Accessing all pods at the same timePods in a Service accessing each otherThis is where he",
"product_code":"cce",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Ingresses",
"uri":"cce_10_0248.html",
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"desc":"A Service is generally used to forward access requests based on TCP and UDP and provide layer-4 load balancing for clusters. However, in actual scenarios, if there is a l",
"product_code":"cce",
"title":"Overview",
"uri":"cce_10_0094.html",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"LoadBalancer Ingresses",
"uri":"cce_10_0686.html",
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"p_code":"290",
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"desc":"In Kubernetes, an ingress is a resource object that controls how Services within a cluster can be accessed from outside the cluster. You can use ingresses to configure di",
"product_code":"cce",
"title":"Creating a LoadBalancer Ingress on the Console",
"uri":"cce_10_0251.html",
"doc_type":"usermanual2",
"p_code":"292",
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"desc":"This section uses an Nginx workload as an example to describe how to create a LoadBalancer ingress using kubectl.If no load balancer is available in the same VPC, CCE can",
"product_code":"cce",
"title":"Creating a LoadBalancer Ingress Using kubectl",
"uri":"cce_10_0252.html",
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"desc":"You can add annotations to a YAML file for more advanced ingress functions. This section describes the annotations that can be used when you create a LoadBalancer ingress",
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"title":"Annotations for Configuring LoadBalancer Ingresses",
"uri":"cce_10_0695.html",
"doc_type":"usermanual2",
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"code":"295"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Advanced Setting Examples of LoadBalancer Ingresses",
"uri":"cce_10_0935.html",
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"p_code":"292",
"code":"296"
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"desc":"Ingresses support SSL or TLS certificates, allowing you to secure your Services with HTTPS.You are allowed to use either of the following ways to configure an ingress cer",
"product_code":"cce",
"title":"Configuring an HTTPS Certificate for a LoadBalancer Ingress",
"uri":"cce_10_0687.html",
"doc_type":"usermanual2",
"p_code":"296",
"code":"297"
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{
"desc":"If the HTTPS certificate for a LoadBalancer ingress is about to expire or has expired, follow the operations provided in this section to update it.",
"product_code":"cce",
"title":"Updating the HTTPS Certificate for a LoadBalancer Ingress",
"uri":"cce_10_0930.html",
"doc_type":"usermanual2",
"p_code":"296",
"code":"298"
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"desc":"An SNI certificate is an extended server certificate that allows the same IP address and port number to provide multiple access domain names for external systems. Differe",
"product_code":"cce",
"title":"Configuring SNI for a LoadBalancer Ingress",
"uri":"cce_10_0688.html",
"doc_type":"usermanual2",
"p_code":"296",
"code":"299"
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{
"desc":"An ingress can route requests to multiple backend Services based on different matching policies. For example, requests can be routed to three different backend Services s",
"product_code":"cce",
"title":"Configuring Multiple Forwarding Policies for a LoadBalancer Ingress",
"uri":"cce_10_0689.html",
"doc_type":"usermanual2",
"p_code":"296",
"code":"300"
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{
"desc":"Ingresses can use HTTP/2 to expose Services. Connections from the load balancer to your application use HTTP/1.x by default. If your application is capable of receiving H",
"product_code":"cce",
"title":"Configuring HTTP/2 for a LoadBalancer Ingress",
"uri":"cce_10_0694.html",
"doc_type":"usermanual2",
"p_code":"296",
"code":"301"
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"desc":"Ingresses can interconnect with backend services of different protocols. By default, the backend proxy channel of an ingress is HTTP-compliant. To create an HTTPS channel",
"product_code":"cce",
"title":"Configuring HTTPS Backend Services for a LoadBalancer Ingress",
"uri":"cce_10_0691.html",
"doc_type":"usermanual2",
"p_code":"296",
"code":"302"
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{
"desc":"LoadBalancer ingresses support the following timeout settings:Idle timeout setting for client connections: maximum duration for keeping a connection when no client reques",
"product_code":"cce",
"title":"Configuring Timeout for a LoadBalancer Ingress",
"uri":"cce_10_0730.html",
"doc_type":"usermanual2",
"p_code":"296",
"code":"303"
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{
"desc":"With slow start configured, a load balancer linearly increases the proportion of requests to backend server pods. When the slow start duration elapses, the load balancer ",
"product_code":"cce",
"title":"Configuring a Slow Start for a LoadBalancer Ingress",
"uri":"cce_10_0735.html",
"doc_type":"usermanual2",
"p_code":"296",
"code":"304"
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{
"desc":"You can add IP addresses to a trustlist or blocklist to control access to a listener of a LoadBalancer ingress.Trustlist: Only the IP addresses in the list can access the",
"product_code":"cce",
"title":"Configuring a Blocklist/Trustlist Access Policy for a LoadBalancer Ingress",
"uri":"cce_10_0832.html",
"doc_type":"usermanual2",
"p_code":"296",
"code":"305"
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{
"desc":"Ingress allows you to customize listening ports. You can configure both HTTP and HTTPS listeners for a Service. For example, a Service can make available both HTTP port 8",
"product_code":"cce",
"title":"Configuring a Range of Listening Ports for a LoadBalancer Ingress",
"uri":"cce_10_0937.html",
"doc_type":"usermanual2",
"p_code":"296",
"code":"306"
},
{
"desc":"When ingresses use the same load balancer listener, forwarding rules can be prioritized based on the following rules:Forwarding rules of different ingresses: The rules ar",
"product_code":"cce",
"title":"Configuring the Priorities of Forwarding Rules for LoadBalancer Ingresses",
"uri":"cce_10_0939.html",
"doc_type":"usermanual2",
"p_code":"296",
"code":"307"
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{
"desc":"Dedicated load balancer ingresses support custom header forwarding policies. You can configure different header key-value pairs to determine the backend Service to which ",
"product_code":"cce",
"title":"Configuring a Custom Header Forwarding Policy for a LoadBalancer Ingress",
"uri":"cce_10_0896.html",
"doc_type":"usermanual2",
"p_code":"296",
"code":"308"
},
{
"desc":"You can customize the EIP bound to a load balancer that is automatically created by CCE by adding the kubernetes.io/elb.custom-eip-id annotation to an ingress.A CCE stand",
"product_code":"cce",
"title":"Configuring a Custom EIP for a LoadBalancer Ingress",
"uri":"cce_10_0925.html",
"doc_type":"usermanual2",
"p_code":"296",
"code":"309"
},
{
"desc":"Ingresses offer diverse forwarding rules that can match listeners based on different request parameters like HTTP request methods, headers, query strings, CIDR blocks, an",
"product_code":"cce",
"title":"Configuring Advanced Forwarding Rules for a LoadBalancer Ingress",
"uri":"cce_10_0940.html",
"doc_type":"usermanual2",
"p_code":"296",
"code":"310"
},
{
"desc":"Dedicated load balancers offer different forwarding actions to effectively distribute traffic. ELB directs client requests to backend servers based on the specified forwa",
"product_code":"cce",
"title":"Configuring Advanced Forwarding Actions for a LoadBalancer Ingress",
"uri":"cce_10_0949.html",
"doc_type":"usermanual2",
"p_code":"296",
"code":"311"
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{
"desc":"CCE sets up forwarding policies on the ELB console based on the rules specified in the ingress configurations when creating LoadBalancer ingresses.To handle more complex ",
"product_code":"cce",
"title":"Forwarding Policy Priorities of LoadBalancer Ingresses",
"uri":"cce_10_0950.html",
"doc_type":"usermanual2",
"p_code":"292",
"code":"312"
},
{
"desc":"In a cluster, multiple ingresses can share a listener, allowing them to use the same port on a single load balancer. If two ingresses have different listener configuratio",
"product_code":"cce",
"title":"Configuring Multiple Ingresses to Use the Same External ELB Port",
"uri":"cce_10_0954.html",
"doc_type":"usermanual2",
"p_code":"292",
"code":"313"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Nginx Ingresses",
"uri":"cce_10_0692.html",
"doc_type":"usermanual2",
"p_code":"290",
"code":"314"
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{
"desc":"In Kubernetes, an ingress is a resource object that controls how Services within a cluster can be accessed from outside the cluster. You can use ingresses to configure di",
"product_code":"cce",
"title":"Creating an Nginx Ingress on the Console",
"uri":"cce_10_0390.html",
"doc_type":"usermanual2",
"p_code":"314",
"code":"315"
},
{
"desc":"This section uses an Nginx workload as an example to describe how to create an Nginx ingress using kubectl.In CCE clusters of v1.23 or later, the ingress version is switc",
"product_code":"cce",
"title":"Creating an Nginx Ingress Using kubectl",
"uri":"cce_10_0364.html",
"doc_type":"usermanual2",
"p_code":"314",
"code":"316"
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"desc":"The nginx-ingress add-on in CCE uses the community chart and image. If the default add-on parameters cannot meet your demands, you can add annotations to define what you ",
"product_code":"cce",
"title":"Annotations for Configuring Nginx Ingresses",
"uri":"cce_10_0699.html",
"doc_type":"usermanual2",
"p_code":"314",
"code":"317"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Advanced Setting Examples of Nginx Ingresses",
"uri":"cce_10_0936.html",
"doc_type":"usermanual2",
"p_code":"314",
"code":"318"
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{
"desc":"HTTPS certificates can be configured for ingresses to provide security services.Create a YAML file named ingress-test-secret.yaml. The file name can be customized.The YAM",
"product_code":"cce",
"title":"Configuring an HTTPS Certificate for an Nginx Ingress",
"uri":"cce_10_0693.html",
"doc_type":"usermanual2",
"p_code":"318",
"code":"319"
},
{
"desc":"Ingress can function as a proxy for backend services using different protocols. By default, the backend proxy channel of an ingress is an HTTP channel. To create an HTTPS",
"product_code":"cce",
"title":"Configuring HTTPS Backend Services for an Nginx Ingress",
"uri":"cce_10_0697.html",
"doc_type":"usermanual2",
"p_code":"318",
"code":"320"
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{
"desc":"The native Nginx supports multiple load balancing rules, including weighted round robin and IP hash. Nginx Ingress supports load balancing by using consistent hashing bas",
"product_code":"cce",
"title":"Configuring Consistent Hashing for Load Balancing of an Nginx Ingress",
"uri":"cce_10_0698.html",
"doc_type":"usermanual2",
"p_code":"318",
"code":"321"
},
{
"desc":"Ingress objects provide Layer 7 protocols like HTTP and HTTPS for clusters. Among the available options, Nginx ingresses are widely used. CCE has developed a featured ope",
"product_code":"cce",
"title":"Optimizing NGINX Ingress Controller in High-Traffic Scenarios",
"uri":"cce_10_0919.html",
"doc_type":"usermanual2",
"p_code":"318",
"code":"322"
},
{
"desc":"CCE provides the following options for configuring ingress certificates for the Nginx Ingress Controller add-on:Secret certificate. Import the required certificate to a C",
"product_code":"cce",
"title":"Configuring an ELB Certificate for NGINX Ingress Controller",
"uri":"cce_10_0947.html",
"doc_type":"usermanual2",
"p_code":"318",
"code":"323"
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{
"desc":"CCE NGINX Ingress Controller is based on the community version of Ingress NGINX Controller. Upgrades to the community version may introduce new features, optimize existin",
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"title":"NGINX Ingress Controller Upgrade Compatibility",
"uri":"cce_10_0968.html",
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"p_code":"314",
"code":"324"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"DNS",
"uri":"cce_10_0359.html",
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"p_code":"247",
"code":"325"
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{
"desc":"When you create a cluster, the CoreDNS add-on is installed to resolve domain names in the cluster.You can view the pod of the CoreDNS add-on in the kube-system namespace.",
"product_code":"cce",
"title":"Overview",
"uri":"cce_10_0360.html",
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"desc":"Every Kubernetes cluster has a built-in DNS add-on (Kube-DNS or CoreDNS) to provide domain name resolution for workloads in the cluster. When handling a high concurrency ",
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"title":"DNS Configuration",
"uri":"cce_10_0365.html",
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"desc":"When using CCE, you may need to resolve custom internal domain names in the following scenarios:In the legacy code, a fixed domain name is configured for calling other in",
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"title":"Using CoreDNS for Custom Domain Name Resolution",
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"desc":"This section describes how to access an intranet from a container (outside the cluster in a VPC), including intra-VPC access and cross-VPC access.The performance of acces",
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"title":"Configuring Intra-VPC Access",
"uri":"cce_10_0399.html",
"doc_type":"usermanual2",
"p_code":"247",
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"desc":"Containers can access the Internet in either of the following ways:Bind an EIP to the node where the container is located if the network model is VPC or tunnel.Bind an EI",
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"title":"Accessing the Internet from a Container",
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"doc_type":"usermanual2",
"p_code":"247",
"code":"330"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Storage",
"uri":"cce_10_0374.html",
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"p_code":"",
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{
"desc":"CCE container storage is implemented based on Kubernetes container storage APIs (CSI). CCE integrates multiple types of cloud storage and covers different application sce",
"product_code":"cce",
"title":"Overview",
"uri":"cce_10_0307.html",
"doc_type":"usermanual2",
"p_code":"331",
"code":"332"
},
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"desc":"On-disk files in a container are ephemeral, which presents the following problems to important applications running in the container:When a container is rebuilt, files in",
"product_code":"cce",
"title":"Storage Basics",
"uri":"cce_10_0378.html",
"doc_type":"usermanual2",
"p_code":"331",
"code":"333"
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{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Elastic Volume Service",
"uri":"cce_10_0044.html",
"doc_type":"usermanual2",
"p_code":"331",
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},
{
"desc":"To achieve persistent storage, CCE allows you to mount the storage volumes created from Elastic Volume Service (EVS) disks to a path of a container. When the container is",
"product_code":"cce",
"title":"Overview",
"uri":"cce_10_0613.html",
"doc_type":"usermanual2",
"p_code":"334",
"code":"335"
},
{
"desc":"CCE allows you to create a PV using an existing EVS disk. Then, you can create a PVC and bind it to the PV. This method is suitable for scenarios where underlying storage",
"product_code":"cce",
"title":"Using an Existing EVS Disk Through a Static PV",
"uri":"cce_10_0614.html",
"doc_type":"usermanual2",
"p_code":"334",
"code":"336"
},
{
"desc":"CCE allows you to specify a StorageClass to automatically create an EVS disk and the corresponding PV. This function is applicable when no underlying storage volume is av",
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"title":"Using an EVS Disk Through a Dynamic PV",
"uri":"cce_10_0615.html",
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"p_code":"334",
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{
"desc":"Dynamic mounting is available only for creating a StatefulSet. It is implemented through a volume claim template (volumeClaimTemplates field) and depends on dynamic creat",
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"title":"Dynamically Mounting an EVS Disk to a StatefulSet",
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"code":"338"
},
{
"desc":"Encrypting cloud disks ensures data privacy and control, making it ideal for scenarios that demand high security or compliance standards. This section describes how to us",
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"uri":"cce_10_0859.html",
"doc_type":"usermanual2",
"p_code":"334",
"code":"339"
},
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"desc":"If the EVS disk attached to a workload does not have enough space, you can increase its capacity by expanding it. This section describes how to expand the capacity of an ",
"product_code":"cce",
"title":"Expanding the Capacity of an EVS Disk",
"uri":"cce_10_0860.html",
"doc_type":"usermanual2",
"p_code":"334",
"code":"340"
},
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"desc":"CCE works with EVS to support snapshots. A snapshot is a complete copy or image of EVS disk data at a certain point of time, which can be used for data DR.You can create ",
"product_code":"cce",
"title":"Snapshots and Backups",
"uri":"cce_10_0381.html",
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"p_code":"334",
"code":"341"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Scalable File Service",
"uri":"cce_10_0111.html",
"doc_type":"usermanual2",
"p_code":"331",
"code":"342"
},
{
"desc":"CCE allows you to mount a volume created from a Scalable File Service (SFS) file system to a container to store data persistently. SFS volumes are commonly used in ReadWr",
"product_code":"cce",
"title":"Overview",
"uri":"cce_10_0617.html",
"doc_type":"usermanual2",
"p_code":"342",
"code":"343"
},
{
"desc":"SFS is a network-attached storage (NAS) that provides shared, scalable, and high-performance file storage. It applies to large-capacity expansion and cost-sensitive servi",
"product_code":"cce",
"title":"Using an Existing SFS File System Through a Static PV",
"uri":"cce_10_0619.html",
"doc_type":"usermanual2",
"p_code":"342",
"code":"344"
},
{
"desc":"This section describes how to use storage classes to dynamically create PVs and PVCs for data persistence and sharing in workloads.You have created a cluster and installe",
"product_code":"cce",
"title":"Using an SFS File System Through a Dynamic PV",
"uri":"cce_10_0620.html",
"doc_type":"usermanual2",
"p_code":"342",
"code":"345"
},
{
"desc":"This section describes how to configure SFS mount options. You can configure mount options in a PV and bind the PV to a PVC. Alternatively, configure mount options in a S",
"product_code":"cce",
"title":"Configuring SFS Volume Mount Options",
"uri":"cce_10_0337.html",
"doc_type":"usermanual2",
"p_code":"342",
"code":"346"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"SFS Turbo",
"uri":"cce_10_0125.html",
"doc_type":"usermanual2",
"p_code":"331",
"code":"347"
},
{
"desc":"CCE allows you to mount storage volumes created by SFS Turbo file systems to a path of a container to meet data persistence requirements. SFS Turbo file systems are fast,",
"product_code":"cce",
"title":"Overview",
"uri":"cce_10_0624.html",
"doc_type":"usermanual2",
"p_code":"347",
"code":"348"
},
{
"desc":"SFS Turbo is a shared file system with high availability and durability. It is suitable for applications that contain massive small files and require low latency, and hig",
"product_code":"cce",
"title":"Using an Existing SFS Turbo File System Through a Static PV",
"uri":"cce_10_0625.html",
"doc_type":"usermanual2",
"p_code":"347",
"code":"349"
},
{
"desc":"This section describes how to configure SFS Turbo mount options. For SFS Turbo, you can only set mount options in a PV and bind the PV by creating a PVC.The CCE Container",
"product_code":"cce",
"title":"Configuring SFS Turbo Mount Options",
"uri":"cce_10_0626.html",
"doc_type":"usermanual2",
"p_code":"347",
"code":"350"
},
{
"desc":"When an SFS Turbo volume is mounted to a workload container, the root directory is mounted to the container by default. However, the minimum capacity of an SFS Turbo volu",
"product_code":"cce",
"title":"(Recommended) Creating an SFS Turbo Subdirectory Using a Dynamic PV",
"uri":"cce_10_0839.html",
"doc_type":"usermanual2",
"p_code":"347",
"code":"351"
},
{
"desc":"The minimum capacity of an SFS Turbo file system is 500 GiB. By default, the root directory of an SFS Turbo file system is mounted to a container which, in most case, doe",
"product_code":"cce",
"title":"Dynamically Creating an SFS Turbo Subdirectory Using StorageClass",
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"code":"352"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"title":"Object Storage Service",
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"desc":"This section describes how to automatically create an OBS bucket. It is applicable when no underlying storage volume is available.If OBS volumes are used, the owner group",
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"title":"Using an OBS Bucket Through a Dynamic PV",
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"desc":"This section describes how to configure OBS volume mount options. You can configure mount options in a PV and bind the PV to a PVC. Alternatively, configure mount options",
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"desc":"CCE Container Storage (Everest) of v1.2.8 or later supports custom access keys. In this way, IAM users can use their own custom access keys to mount an OBS volume.The CCE",
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"title":"Using a Custom Access Key (AK/SK) to Mount an OBS Volume",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Local PVs",
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"desc":"CCE allows you to use LVM to combine data volumes on nodes into a storage pool (VolumeGroup) and create LVs for containers to mount. A PV that uses a local persistent vol",
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"title":"Overview",
"uri":"cce_10_0633.html",
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"p_code":"359",
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"desc":"CCE allows you to use LVM to combine data volumes on nodes into a storage pool (VolumeGroup) and create LVs for containers to mount. Before creating a local PV, import th",
"product_code":"cce",
"title":"Importing a PV to a Storage Pool",
"uri":"cce_10_0642.html",
"doc_type":"usermanual2",
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"desc":"You have created a cluster and installed the CSI add-on (Everest) in the cluster.To create a cluster using commands, ensure kubectl is used. For details, see Accessing a ",
"product_code":"cce",
"title":"Using a Local PV Through a Dynamic PV",
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"desc":"Dynamic mounting is available only for creating a StatefulSet. It is implemented through a volume claim template (volumeClaimTemplates field) and depends on dynamic creat",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"desc":"Some applications require additional storage, but whether the data is still available after a restart is not important. For example, although cache services are limited b",
"product_code":"cce",
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"desc":"CCE allows you to use LVM to combine data volumes on nodes into a storage pool (VolumeGroup) and create LVs for containers to mount. Before creating a local EV, import th",
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"title":"Importing an EV to a Storage Pool",
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"desc":"Local Ephemeral Volumes (EVs) are stored in EV storage pools. Local EVs deliver better performance than the default storage medium of native emptyDir and support scale-ou",
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"desc":"A temporary path is of the Kubernetes-native emptyDir type. Its lifecycle is the same as that of a pod. Memory can be specified as the storage medium. When the pod is del",
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"desc":"hostPath is used for mounting the file directory of the host where the container is located to the specified mount point of the container. If the container needs to acces",
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"desc":"A StorageClass in Kubernetes is a resource that categorizes storage types in a cluster. It can also serve as a configuration template for creating PVs. When creating a PV",
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"doc_type":"usermanual2",
"p_code":"331",
"code":"370"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"title":"Auto Scaling",
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"desc":"Auto scaling is a service that automatically and economically adjusts service resources based on your service requirements and configured policies.More and more applicati",
"product_code":"cce",
"title":"Overview",
"uri":"cce_10_0279.html",
"doc_type":"usermanual2",
"p_code":"371",
"code":"372"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Scaling a Workload",
"uri":"cce_10_0293.html",
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"desc":"CCE supports multiple workload scaling modes. Comparisons between the scaling policies are listed in the following table.Comparisons between auto scaling policiesItemHPAC",
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"title":"Workload Scaling Rules",
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"desc":"Horizontal Pod Autoscaling (HPA) in Kubernetes implements horizontal scaling of pods. In a CCE HPA policy, you can configure different cooldown time windows and scaling t",
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"uri":"cce_10_0208.html",
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"desc":"Kubernetes' default HPA policy only allows for auto scaling based on CPU and memory usage. However, in more complex service scenarios, this may not be sufficient to meet ",
"product_code":"cce",
"title":"Creating an HPA Policy with Custom Metrics",
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"desc":"There are predictable and unpredictable traffic peaks for some services. For such services, CCE CronHPA allows you to scale resources in fixed periods. It can work with H",
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"desc":"The native Horizontal Pod Autoscaler (HPA) in Kubernetes can cause delays in scaling due to its passive triggering mechanism. To address this issue, the Advanced Horizont",
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"desc":"After a workload scaling policy is created, you can update and delete the policy, as well as edit the YAML file.You can view the rules, latest status, and events of a wor",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Scaling a Node",
"uri":"cce_10_0291.html",
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"desc":"HPA is designed for pod-level scaling and can dynamically adjust the number of replicas based on workload metrics. However, if cluster resources are insufficient and new ",
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"title":"Node Scaling Rules",
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"desc":"To use node flavor priorities, the Autoscaler version must be 1.19.35, 1.21.28, 1.23.30, 1.25.20, or later. To balance load among AZs, the version must be 1.23.122, 1.25.",
"product_code":"cce",
"title":"Priorities for Scaling Node Pools",
"uri":"cce_10_0649.html",
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"code":"382"
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"desc":"CCE provides auto scaling through the CCE Cluster Autoscaler add-on. Nodes with different flavors can be automatically added across AZs on demand.If both a node scaling p",
"product_code":"cce",
"title":"Creating a Node Scaling Policy",
"uri":"cce_10_0209.html",
"doc_type":"usermanual2",
"p_code":"380",
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"desc":"After a node scaling policy is created, you can delete, edit, disable, enable, or clone the policy.You can view the associated node pool, rules, and scaling history of a ",
"product_code":"cce",
"title":"Managing Node Scaling Policies",
"uri":"cce_10_0063.html",
"doc_type":"usermanual2",
"p_code":"380",
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{
"desc":"When you use the CCE Cluster Autoscaler add-on to automatically adjust the number of nodes, you need to specify the scale-in conditions for each node pool in a cluster ba",
"product_code":"cce",
"title":"Specifying Node Scale-in Conditions for a Node Pool",
"uri":"cce_10_0967.html",
"doc_type":"usermanual2",
"p_code":"380",
"code":"385"
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{
"desc":"The best way to handle surging traffic is to automatically adjust the number of machines based on the traffic volume or resource usage, which is called scaling.To prevent",
"product_code":"cce",
"title":"Using HPA and CA for Auto Scaling of Workloads and Nodes",
"uri":"cce_10_0300.html",
"doc_type":"usermanual2",
"p_code":"371",
"code":"386"
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{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"O&M",
"uri":"cce_10_0705.html",
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"code":"387"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Logging",
"uri":"cce_10_0553.html",
"doc_type":"usermanual2",
"p_code":"387",
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"desc":"Kubernetes logs allow you to locate and rectify faults. This section describes how to manage Kubernetes logs using different methods.The following are Kubernetes log mana",
"product_code":"cce",
"title":"Overview",
"uri":"cce_10_0557.html",
"doc_type":"usermanual2",
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{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Collecting Container Logs",
"uri":"cce_10_0182.html",
"doc_type":"usermanual2",
"p_code":"388",
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{
"desc":"The Cloud Native Log Collection add-on (Cloud Native Log Collection) is developed based on Fluent Bit and OpenTelemetry for collecting logs and Kubernetes events. This ad",
"product_code":"cce",
"title":"Collecting Container Logs Using the Cloud Native Log Collection Add-on",
"uri":"cce_10_0555.html",
"doc_type":"usermanual2",
"p_code":"390",
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{
"desc":"CCE works with AOM to collect workload logs. When a node is created, ICAgent (a DaemonSet named icagent in the kube-system namespace of a cluster) of AOM is installed by ",
"product_code":"cce",
"title":"Collecting Container Logs Using ICAgent",
"uri":"cce_10_0018.html",
"doc_type":"usermanual2",
"p_code":"390",
"code":"392"
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{
"desc":"The Cloud Native Log Collection add-on works with LTS to collect and store Kubernetes events and works with AOM to generate alarms.To enable Kubernetes event collection, ",
"product_code":"cce",
"title":"Collecting Kubernetes Events",
"uri":"cce_10_0793.html",
"doc_type":"usermanual2",
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{
"desc":"CCE allows you to collect the logs of master nodes. On the Logging page, you can select one or more control plane components (kube-controller-manager, kube-apiserver, and",
"product_code":"cce",
"title":"Collecting Control Plane Component Logs",
"uri":"cce_10_0554.html",
"doc_type":"usermanual2",
"p_code":"388",
"code":"394"
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{
"desc":"CCE allows you to collect the logs of master nodes. On the Kubernetes Audit Logs tab of Logging, you can determine whether to report audit logs to LTS.The cluster version",
"product_code":"cce",
"title":"Collecting Audit Logs",
"uri":"cce_10_0792.html",
"doc_type":"usermanual2",
"p_code":"388",
"code":"395"
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{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Log Auditing",
"uri":"cce_10_0024.html",
"doc_type":"usermanual2",
"p_code":"387",
"code":"396"
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{
"desc":"Cloud Trace Service (CTS) records operations on cloud service resources, allowing users to query, audit, and backtrack the resource operation requests initiated from the ",
"product_code":"cce",
"title":"CCE Operations Supported by Cloud Trace Service",
"uri":"cce_10_0025.html",
"doc_type":"usermanual2",
"p_code":"396",
"code":"397"
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{
"desc":"After you enable Cloud Trace Service (CTS) and the management tracker is created, CTS starts recording operations on cloud resources. CTS stores operation records (traces",
"product_code":"cce",
"title":"Viewing CTS Traces in the Trace List",
"uri":"cce_10_0026.html",
"doc_type":"usermanual2",
"p_code":"396",
"code":"398"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"O&M FAQ",
"uri":"cce_10_0799.html",
"doc_type":"usermanual2",
"p_code":"387",
"code":"399"
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{
"desc":"How Do I Disable Logging?What Can I Do If All Components Except log-operator Are Not Ready?How Do I Handle the Error in Stdout Logs of log-operator?What Can I Do If Conta",
"product_code":"cce",
"title":"Logging FAQ",
"uri":"cce_10_0809.html",
"doc_type":"usermanual2",
"p_code":"399",
"code":"400"
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{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"O&M Best Practices",
"uri":"cce_10_0811.html",
"doc_type":"usermanual2",
"p_code":"387",
"code":"401"
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{
"desc":"CCE provides the Cloud Native Cluster Monitoring add-on to monitor custom metrics using Prometheus.The following procedure uses an Nginx application as an example to desc",
"product_code":"cce",
"title":"Monitoring Custom Metrics Using Cloud Native Cluster Monitoring",
"uri":"cce_10_0373.html",
"doc_type":"usermanual2",
"p_code":"401",
"code":"402"
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{
"desc":"CCE allows you to upload custom metrics to AOM. ICAgent on a node periodically calls the metric monitoring API configured on a workload to read monitoring data and then u",
"product_code":"cce",
"title":"Monitoring Custom Metrics on AOM",
"uri":"cce_10_0201.html",
"doc_type":"usermanual2",
"p_code":"401",
"code":"403"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Namespaces",
"uri":"cce_10_0030.html",
"doc_type":"usermanual2",
"p_code":"",
"code":"404"
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{
"desc":"A namespace is a collection of resources and objects. Multiple namespaces can be created inside a cluster and isolated from each other. This enables namespaces to share t",
"product_code":"cce",
"title":"Creating a Namespace",
"uri":"cce_10_0278.html",
"doc_type":"usermanual2",
"p_code":"404",
"code":"405"
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{
"desc":"When creating a workload, you can select a namespace to isolate resources or users.When querying workloads, you can select a namespace to view all workloads in the namesp",
"product_code":"cce",
"title":"Managing Namespaces",
"uri":"cce_10_0285.html",
"doc_type":"usermanual2",
"p_code":"404",
"code":"406"
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{
"desc":"Kubernetes provides namespaces for you to group resources in a cluster. Namespaces serve different purposes to meet the needs of multiple users, environments, and applica",
"product_code":"cce",
"title":"Configuring Resource Quotas",
"uri":"cce_10_0287.html",
"doc_type":"usermanual2",
"p_code":"404",
"code":"407"
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{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"ConfigMaps and Secrets",
"uri":"cce_10_0045.html",
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{
"desc":"A ConfigMap is a type of resource that stores configuration information required by a workload. Its content is user-defined. After creating ConfigMaps, you can use them a",
"product_code":"cce",
"title":"Creating a ConfigMap",
"uri":"cce_10_0152.html",
"doc_type":"usermanual2",
"p_code":"408",
"code":"409"
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{
"desc":"After a ConfigMap is created, it can be used in three workload scenarios: environment variables, command line parameters, and data volumes.Configuring Environment Variabl",
"product_code":"cce",
"title":"Using a ConfigMap",
"uri":"cce_10_0015.html",
"doc_type":"usermanual2",
"p_code":"408",
"code":"410"
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{
"desc":"A secret is a type of resource that holds sensitive data, such as authentication and key information. Its content is user-defined. After creating secrets, you can use the",
"product_code":"cce",
"title":"Creating a Secret",
"uri":"cce_10_0153.html",
"doc_type":"usermanual2",
"p_code":"408",
"code":"411"
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{
"desc":"After secrets are created, they can be mounted as data volumes or be exposed as environment variables to be used by a container in a pod.Do not perform any operation on t",
"product_code":"cce",
"title":"Using a Secret",
"uri":"cce_10_0016.html",
"doc_type":"usermanual2",
"p_code":"408",
"code":"412"
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{
"desc":"By default, CCE creates the following secrets in each namespace:default-secretpaas.elbdefault-token-xxxxx (xxxxx is a random number.)The functions of these secrets are de",
"product_code":"cce",
"title":"Cluster Secrets",
"uri":"cce_10_0388.html",
"doc_type":"usermanual2",
"p_code":"408",
"code":"413"
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{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Add-ons",
"uri":"cce_10_0064.html",
"doc_type":"usermanual2",
"p_code":"",
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{
"desc":"CCE provides multiple types of add-ons to extend cluster functions and meet feature requirements. You can install add-ons as required.CCE uses Helm charts to deploy add-o",
"product_code":"cce",
"title":"Overview",
"uri":"cce_10_0277.html",
"doc_type":"usermanual2",
"p_code":"414",
"code":"415"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Scheduling and Elasticity Add-ons",
"uri":"cce_10_0907.html",
"doc_type":"usermanual2",
"p_code":"414",
"code":"416"
},
{
"desc":"Volcano is a batch processing platform based on Kubernetes. It provides a series of features required by machine learning, deep learning, bioinformatics, genomics, and ot",
"product_code":"cce",
"title":"Volcano Scheduler",
"uri":"cce_10_0193.html",
"doc_type":"usermanual2",
"p_code":"416",
"code":"417"
},
{
"desc":"The CCE Cluster Autoscaler add-on is built on the Autoscaler component of the community. It can automatically adjust the number of cluster nodes based on the resource nee",
"product_code":"cce",
"title":"CCE Cluster Autoscaler",
"uri":"cce_10_0154.html",
"doc_type":"usermanual2",
"p_code":"416",
"code":"418"
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{
"desc":"The CCE Advanced HPA add-on (formerly cce-hpa-controller) is developed by CCE. It can be used to flexibly scale in or out Deployments based on metrics such as CPU usage a",
"product_code":"cce",
"title":"CCE Advanced HPA",
"uri":"cce_10_0240.html",
"doc_type":"usermanual2",
"p_code":"416",
"code":"419"
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{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Cloud Native Observability Add-ons",
"uri":"cce_10_0908.html",
"doc_type":"usermanual2",
"p_code":"414",
"code":"420"
},
{
"desc":"The Cloud Native Cluster Monitoring add-on (formerly kube-prometheus-stack) uses Prometheus-operator and Prometheus and provides easy-to-use, end-to-end Kubernetes cluste",
"product_code":"cce",
"title":"Cloud Native Cluster Monitoring",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"desc":"Generally, a user has different clusters for different purposes, such as production, testing, and development. To monitor, collect, and view metrics of these clusters, yo",
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"desc":"The Cloud Native Cluster Monitoring add-on can report Prometheus metrics collected from clusters to a specified platform, for example, AOM or a third-party platform that ",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"desc":"When you use CCE to create a Kubernetes cluster, there are multiple configuration options and terms. This section compares the key configurations for CCE clusters and pro",
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"title":"Suggestions on CCE Cluster Selection",
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"desc":"This section describes how to set up a VPC with IPv6 CIDR block and create a cluster and nodes with an IPv6 address in the VPC, so that the nodes can access the Internet.",
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"desc":"When creating a node, use the pre- or -installation commands to install tools or perform security hardening on the node. This section provides guidance for you to correct",
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"desc":"The kubectl command line tool relies on the kubeconfig configuration file to locate the necessary authentication information to select a cluster and communicate with its ",
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"desc":"As services grow, the Kubernetes cluster scales up, putting more pressure on the control plane. If the control plane cannot handle the load, clusters may fail to provide ",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"desc":"CCE uses proprietary, high-performance container networking add-ons to support the tunnel, Cloud Native 2.0, and VPC network models.After a cluster is created, the networ",
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"desc":"Sticky sessions ensure continuity and consistency when you access applications. If a load balancer is deployed between a client and backend servers, connections may be fo",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"desc":"DNS resolution is frequently used in Kubernetes clusters. Based on the characteristics of DNS resolution in Kubernetes, you can optimize domain name resolution requests i",
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"desc":"The musl libc library of the Alpine container image differs from the standard glibc library in the following aspects:Alpine 3.3 and earlier versions do not support the se",
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"desc":"When kube-proxy uses IPVS load balancing, you may encounter DNS resolution timeout occasionally during CoreDNS scale-in or restart.This problem is caused by a Linux kerne",
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"desc":"When the coredns add-on is started, it obtains the DNS configuration in the resolve.conf file from the deployed instance by default and uses the configuration as the upst",
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"title":"Adjusting the DNS Configuration of the VPC and VM",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"title":"Server",
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"desc":"CoreDNS exposes health metrics such as resolution results through the standard Prometheus API to detect exceptions on the CoreDNS server or even upstream DNS server.Port ",
"product_code":"cce",
"title":"Monitoring the coredns Add-on",
"uri":"cce_bestpractice_0355.html",
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"desc":"In CCE clusters, the CoreDNS add-on is installed by default, and it can run on the same cluster nodes as your service containers. You need to pay attention to the followi",
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"title":"Adjusting the CoreDNS Deployment Status",
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{
"desc":"On the console, the CoreDNS add-on can only be configured with the preset specifications, which can satisfy most of the service requirements. In some scenarios where ther",
"product_code":"cce",
"title":"Configuring CoreDNS",
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{
"desc":"In the Cloud Native 2.0 network model, each pod is allocated an ENI or a sub-ENI (called container ENI). The speed of ENI creation and binding is slower than that of pod ",
"product_code":"cce",
"title":"Pre-Binding Container ENI for CCE Turbo Clusters",
"uri":"cce_bestpractice_10010.html",
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"p_code":"508",
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{
"desc":"In a CCE cluster that uses a VPC network, when pods try to communicate with external systems, CCE automatically translates the source IP addresses of the pods into the IP",
"product_code":"cce",
"title":"Accessing an IP Address Outside of a Cluster That Uses a VPC Network by Using Source Pod IP Addresses Within the Cluster",
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"doc_type":"usermanual2",
"p_code":"508",
"code":"526"
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{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"title":"Storage",
"uri":"cce_bestpractice_0053.html",
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"p_code":"457",
"code":"527"
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{
"desc":"The storage classes that can be expanded for CCE nodes are as follows:EulerOS 2.9 is used as the sample OS. There is only one partition (/dev/vda1) with a capacity of 50 ",
"product_code":"cce",
"title":"Expanding the Storage Space",
"uri":"cce_bestpractice_00198.html",
"doc_type":"usermanual2",
"p_code":"527",
"code":"528"
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{
"desc":"Cross-account data sharing. For example, multiple teams within a company need to share data, but each team uses a different account.Cross-account data migration and backu",
"product_code":"cce",
"title":"Mounting Object Storage Across Accounts",
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"p_code":"527",
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{
"desc":"The minimum capacity of an SFS Turbo file system is 500 GiB. By default, the root directory of an SFS Turbo file system is mounted to a container which, in most case, doe",
"product_code":"cce",
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"p_code":"527",
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{
"desc":"In clusters later than v1.15.11-r1, CSI (the everest add-on) has taken over all functions of fuxi FlexVolume (the storage-driver add-on) for managing container storage. Y",
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{
"desc":"When using storage resources in CCE, the most common method is to specify storageClassName to define the type of storage resources to be created when creating a PVC. The ",
"product_code":"cce",
"title":"Using Custom Storage Classes",
"uri":"cce_bestpractice_00281.html",
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"p_code":"527",
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{
"desc":"EVS disks cannot be attached to a node deployed in another AZ. For example, the EVS disks in AZ 1 cannot be attached to a node in AZ 2. If the storage class csi-disk is u",
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"title":"Scheduling EVS Disks Across AZs Using csi-disk-topology",
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"p_code":"527",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"title":"Container",
"uri":"cce_bestpractice_0051.html",
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"p_code":"457",
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{
"desc":"If a node has sufficient memory resources, a container on this node can use more memory resources than requested, but no more than limited. If the memory allocated to a c",
"product_code":"cce",
"title":"Properly Allocating Container Computing Resources",
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{
"desc":"To access a Kubernetes cluster from a client, you can use the Kubernetes command line tool kubectl.Create a daemonSet file.vi daemonSet.yamlAn example YAML file is provid",
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"title":"Modifying Kernel Parameters Using a Privileged Container",
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"p_code":"534",
"code":"536"
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{
"desc":"An init container is a type of container that starts and exits before the application containers start. If there are multiple init containers, they will be started in the",
"product_code":"cce",
"title":"Using Init Containers to Initialize an Application",
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"code":"537"
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{
"desc":"If DNS or other related settings are inappropriate, you can use hostAliases to overwrite the resolution of the hostname at the pod level when adding entries to the /etc/h",
"product_code":"cce",
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"uri":"cce_bestpractice_00226.html",
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"p_code":"534",
"code":"538"
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{
"desc":"A core dump is when the Linux OS saves the memory status to a file after a program crashes or stops unexpectedly. You can analyze the file to locate the fault.Generally, ",
"product_code":"cce",
"title":"Locating Container Faults Using the Core Dump File",
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"p_code":"534",
"code":"539"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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{
"desc":"By default, the kubeconfig file provided by CCE for users has permissions bound to the cluster-admin role, which are equivalent to the permissions of user root. It is dif",
"product_code":"cce",
"title":"Configuring kubeconfig for Fine-Grained Management on Cluster Resources",
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{
"desc":"CCE permissions are classified into cluster permissions and namespace permissions. Namespace permissions are based on Kubernetes RBAC and can be used to grant permissions",
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"title":"Performing RBAC Authentication on a Namespace Using kubectl Commands",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Release",
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"desc":"When switching between old and new services, you may be challenged in ensuring the system service continuity. If a new service version is directly released to all users a",
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"title":"Overview",
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"desc":"To implement grayscale release for a CCE cluster, deploy other open source tools, such as Nginx Ingress, to the cluster or deploy services to a service mesh. These soluti",
"product_code":"cce",
"title":"Using Services to Implement Simple Grayscale Release and Blue-Green Deployment",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"title":"FAQs",
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{
"desc":"Why Cannot I Create a CCE Cluster?Is Management Scale of a Cluster Related to the Number of Master Nodes?How Do I Locate the Fault When a Cluster Is Unavailable?What Shou",
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"title":"Common FAQ",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Cluster",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
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"desc":"This section describes how to locate and rectify the fault if you fail to create a CCE cluster.Possible causes:The Network Time Protocol daemon (ntpd) is not installed or",
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"title":"Why Cannot I Create a CCE Cluster?",
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{
"desc":"In a CCE cluster, the management scale is not directly related to the number of master nodes. These are cluster parameters that operate in different dimensions. Here are ",
"product_code":"cce",
"title":"Is Management Scale of a Cluster Related to the Number of Master Nodes?",
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{
"desc":"CCE restricts only the number of clusters. However, when using CCE, you may also be using other cloud services, such as Elastic Cloud Server (ECS), Elastic Volume Service",
"product_code":"cce",
"title":"Which Resource Quotas Should I Pay Attention To When Using CCE?",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Cluster Running",
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{
"desc":"This section provides you with some operations to locate the fault when a cluster becomes unavailable.The issues here are described in order of how likely they are to occ",
"product_code":"cce",
"title":"How Do I Locate the Fault When a Cluster Is Unavailable?",
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{
"desc":"QuestionHow do I retrieve data after a CCE cluster is deleted?AnswerAfter a cluster is deleted, the workload on the cluster will also be deleted and cannot be restored. T",
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"title":"How Do I Retrieve Data After a CCE Cluster Is Deleted?",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Cluster Deletion",
"uri":"cce_faq_00309.html",
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{
"desc":"When deleting a cluster, CCE obtains the cluster's resources through kube-apiserver of the cluster. If the cluster is unavailable, frozen, or hibernated, the resources ma",
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"title":"What Can I Do If a Cluster Deletion Fails Due to Residual Resources in the Security Group?",
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{
"desc":"If a cluster is not in the running state (for example, frozen or unavailable), its resources such as PVCs, Services, and Ingresses cannot be obtained. After the cluster i",
"product_code":"cce",
"title":"How Do I Clear Residual Resources After Deleting a Non-Running Cluster?",
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"doc_type":"usermanual2",
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"desc":"This section describes how to locate and rectify the fault if you fail to upgrade an add-on during the CCE cluster upgrade.",
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"title":"What Do I Do If a Cluster Add-On Fails to be Upgraded During the CCE Cluster Upgrade?",
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"product_code":"cce",
"title":"How Can I Locate a Fault That Occurs with a Node?",
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"doc_type":"usermanual2",
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"code":"562"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Node Creation",
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"desc":"The node images in the same cluster must be the same. Pay attention to this when creating, adding, or accepting nodes in a cluster.If you need to allocate user space from",
"product_code":"cce",
"title":"How Do I Troubleshoot Problems Occurred When Adding Nodes to a CCE Cluster?",
"uri":"cce_faq_00027.html",
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"desc":"This section describes how to troubleshoot the problems occurred when you accept or add existing ECSs to a CCE cluster.While an ECS is being accepted into a cluster, the ",
"product_code":"cce",
"title":"How Do I Troubleshoot Problems Occurred When Accepting Nodes into a CCE Cluster?",
"uri":"cce_faq_00097.html",
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"desc":"A node fails to be accepted into a cluster.Log in to the node and check the /var/paas/sys/log/baseagent/baseagent.log installation log. The following error information is",
"product_code":"cce",
"title":"What Should I Do If a Node Cannot Be Managed and an Error Message Appears Saying That the Node Failed to Install?",
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"code":"566"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Node Running",
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"desc":"If you encountered a fault that a cluster is available but some nodes in it are unavailable, you can rectify this fault by referring to the methods provided in this secti",
"product_code":"cce",
"title":"What Should I Do If a Cluster Is Available But Some Nodes in It Are Unavailable?",
"uri":"cce_faq_00120.html",
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"p_code":"567",
"code":"568"
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{
"desc":"The following tables list log files of CCE nodes.",
"product_code":"cce",
"title":"How Do I Collect Logs of Nodes in a CCE Cluster?",
"uri":"cce_faq_00201.html",
"doc_type":"usermanual2",
"p_code":"567",
"code":"569"
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"desc":"The vdb disk of a node is damaged and the node cannot be recovered after reset.Error ScenariosOn a normal node, delete the LV and VG. The node is unavailable.Reset an abn",
"product_code":"cce",
"title":"What Should I Do If the vdb Disk of a Node Is Damaged and the Node Cannot Be Recovered After Reset?",
"uri":"cce_faq_00263.html",
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"p_code":"567",
"code":"570"
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"desc":"When SCSI EVS disks are used and containers are created and deleted on a CentOS node, the disks are frequently mounted and unmounted. The read/write rate of the system di",
"product_code":"cce",
"title":"What Should I Do If I/O Suspension Occasionally Occurs When SCSI EVS Disks Are Used?",
"uri":"cce_faq_00296.html",
"doc_type":"usermanual2",
"p_code":"567",
"code":"571"
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"desc":"When the disk space of a thin pool on a node is about to be used up, the following exceptions occasionally occur:Files or directories fail to be created in the container,",
"product_code":"cce",
"title":"How Do I Fix an Abnormal Container or Node Due to No Thin Pool Disk Space?",
"uri":"cce_faq_00307.html",
"doc_type":"usermanual2",
"p_code":"567",
"code":"572"
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"desc":"SymptomA node is running properly and has GPU resources. However, the following error information is displayed:0/9 nodes are available: 9 insufficient nvidia.com/gpuAnaly",
"product_code":"cce",
"title":"How Do I Rectify Failures When the NVIDIA Driver Is Used to Start Containers on GPU Nodes?",
"uri":"cce_faq_00020.html",
"doc_type":"usermanual2",
"p_code":"567",
"code":"573"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Specification Change",
"uri":"cce_faq_00282.html",
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"desc":"If the node whose specifications need to be changed is accepted into the cluster for management, remove the node from the cluster and then change the node specifications ",
"product_code":"cce",
"title":"How Do I Change the Node Specifications in a CCE Cluster?",
"uri":"cce_faq_00030.html",
"doc_type":"usermanual2",
"p_code":"574",
"code":"575"
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"desc":"After you change the flavor of a node in a CCE node pool on the ECS console and then synchronize the ECS status on the CCE console, the node flavor no longer matches the ",
"product_code":"cce",
"title":"What Are the Impacts of Changing the Flavor of a Node in a CCE Node Pool?",
"uri":"cce_faq_00445.html",
"doc_type":"usermanual2",
"p_code":"574",
"code":"576"
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"desc":"The kubelet option cpu-manager-policy defaults to static, allowing pods with certain resource characteristics to be granted increased CPU affinity and exclusivity on the ",
"product_code":"cce",
"title":"What Should I Do If I Fail to Restart or Create Workloads on a Node After Modifying the Node Specifications?",
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"doc_type":"usermanual2",
"p_code":"574",
"code":"577"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"OSs",
"uri":"cce_faq_00407.html",
"doc_type":"usermanual2",
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"desc":"If the kernel version of a node is earlier than 5.9 and a CCE cluster runs in IPVS forwarding mode, there may be a service access failure after a backend service upgrade ",
"product_code":"cce",
"title":"What Should I Do If There Is a Service Access Failure After a Backend Service Upgrade or a 1-Second Latency When a Service Accesses a CCE Cluster?",
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"doc_type":"usermanual2",
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"code":"579"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Node Pool",
"uri":"cce_faq_00163.html",
"doc_type":"usermanual2",
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"desc":"Locate the fault based on the status of the abnormal node pool, as shown in Table 1.",
"product_code":"cce",
"title":"What Should I Do If a Node Pool Is Abnormal?",
"uri":"cce_faq_00440.html",
"doc_type":"usermanual2",
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"desc":"The node pool keeps being in the expanding state, but no node creation record is displayed in the operation record.Check and rectify the following faults:Whether the spec",
"product_code":"cce",
"title":"What Should I Do If No Node Creation Record Is Displayed When the Node Pool Is Being Expanding?",
"uri":"cce_faq_00127.html",
"doc_type":"usermanual2",
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"code":"582"
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"product_code":"cce",
"title":"What Should I Do If a Node Pool Scale-Out Fails?",
"uri":"cce_faq_00432.html",
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"desc":"If an ECS cannot be managed by a node pool due to the reasons listed in this section, you can modify the configuration to manage the ECS.The flavor of the ECS to be manag",
"product_code":"cce",
"title":"How Do I Modify ECS Configurations When an ECS Cannot Be Managed by a Node Pool?",
"uri":"cce_faq_00443.html",
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"code":"584"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Workload",
"uri":"cce_faq_00028.html",
"doc_type":"usermanual2",
"p_code":"546",
"code":"585"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Workload Exception Troubleshooting",
"uri":"cce_faq_00029.html",
"doc_type":"usermanual2",
"p_code":"585",
"code":"586"
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"desc":"If a workload is abnormal, you can check the pod events first to locate the fault and then rectify the fault.To locate the fault of an abnormal workload, take the followi",
"product_code":"cce",
"title":"How Can I Locate the Root Cause If a Workload Is Abnormal?",
"uri":"cce_faq_00134.html",
"doc_type":"usermanual2",
"p_code":"586",
"code":"587"
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{
"desc":"If a pod is in the Pending state and the events contain the information that indicates a pod scheduling failure, you can locate the cause based on the events. For details",
"product_code":"cce",
"title":"What Should I Do If the Scheduling of a Pod Fails?",
"uri":"cce_faq_00098.html",
"doc_type":"usermanual2",
"p_code":"586",
"code":"588"
},
{
"desc":"When a workload's status shows \"Pod not ready: Back-off pulling image \"xxxxx\", a Kubernetes event of PodsFailed to pull image or Failed to re-pull image will be reported.",
"product_code":"cce",
"title":"What Should I Do If a Pod Fails to Pull the Image?",
"uri":"cce_faq_00015.html",
"doc_type":"usermanual2",
"p_code":"586",
"code":"589"
},
{
"desc":"On the details page of a workload, if an event is displayed indicating that the container fails to be started, perform the following operations to locate the fault:If the",
"product_code":"cce",
"title":"What Should I Do If Container Startup Fails?",
"uri":"cce_faq_00018.html",
"doc_type":"usermanual2",
"p_code":"586",
"code":"590"
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{
"desc":"When a node is abnormal, Kubernetes will evict some pods on the node to ensure workload availability.In Kubernetes, both kube-controller-manager and kubelet can evict pod",
"product_code":"cce",
"title":"What Should I Do If a Pod Fails to Be Evicted?",
"uri":"cce_faq_00209.html",
"doc_type":"usermanual2",
"p_code":"586",
"code":"591"
},
{
"desc":"Abnormal EVS Storage Volume MountingAbnormal SFS Turbo Storage Volume MountingStorage Volume Mounting Timed OutIf the volume to be mounted stores too much data and involv",
"product_code":"cce",
"title":"What Should I Do If a Storage Volume Cannot Be Mounted or the Mounting Times Out?",
"uri":"cce_faq_00200.html",
"doc_type":"usermanual2",
"p_code":"586",
"code":"592"
},
{
"desc":"The workload remains in the creating state.The issues here are described in order of how likely they are to occur.Check these causes one by one until you find the cause o",
"product_code":"cce",
"title":"What Should I Do If a Workload Remains in the Creating State?",
"uri":"cce_faq_00140.html",
"doc_type":"usermanual2",
"p_code":"586",
"code":"593"
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{
"desc":"When obtaining workloads in a namespace, you may come across pods that are in the Terminating state.For example, if you use the command below to obtain pods in the aos na",
"product_code":"cce",
"title":"What Should I Do If a Pod Remains in the Terminating State?",
"uri":"cce_faq_00210.html",
"doc_type":"usermanual2",
"p_code":"586",
"code":"594"
},
{
"desc":"A workload is in Stopped state.The metadata.enable field in the YAML file of the workload is false. As a result, the pod of the workload is deleted and the workload is in",
"product_code":"cce",
"title":"What Should I Do If a Workload Is Stopped Caused by Pod Deletion?",
"uri":"cce_faq_00012.html",
"doc_type":"usermanual2",
"p_code":"586",
"code":"595"
},
{
"desc":"The following exceptions occur when services are deployed on the GPU nodes in a CCE cluster:The GPU memory of containers cannot be obtained.Seven GPU services are deploye",
"product_code":"cce",
"title":"What Should I Do If an Error Occurs When I Deploy a Service on a GPU Node?",
"uri":"cce_faq_00109.html",
"doc_type":"usermanual2",
"p_code":"586",
"code":"596"
},
{
"desc":"When a container fails to be started or terminated, the exit code is recorded by Kubernetes events to report the cause. This section describes how to locate faults using ",
"product_code":"cce",
"title":"How Can I Locate Faults Using an Exit Code?",
"uri":"cce_faq_00404.html",
"doc_type":"usermanual2",
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"code":"597"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Container Configuration",
"uri":"cce_faq_00095.html",
"doc_type":"usermanual2",
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{
"desc":"QuestionWhen is pre-stop processing used?AnswerService processing takes a long time. Pre-stop processing makes sure that during an upgrade, a pod is killed only when the ",
"product_code":"cce",
"title":"When Is Pre-stop Processing Used?",
"uri":"cce_faq_00159.html",
"doc_type":"usermanual2",
"p_code":"598",
"code":"599"
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{
"desc":"When creating a workload, users can specify a container, pod, and namespace as an FQDN for accessing the container in the same namespace.FQDN stands for Fully Qualified D",
"product_code":"cce",
"title":"How Do I Set an FQDN for Accessing a Specified Container in the Same Namespace?",
"uri":"cce_faq_00261.html",
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"desc":"When the liveness and readiness probes fail to perform the health check, locate the service fault first.Common causes are as follows:The service processing takes a long t",
"product_code":"cce",
"title":"What Should I Do If Health Check Probes Occasionally Fail?",
"uri":"cce_faq_00255.html",
"doc_type":"usermanual2",
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{
"desc":"A container is started in tailf /dev/null mode and the directory permission is 700 after the startup script is manually executed. If the container is started by Kubernete",
"product_code":"cce",
"title":"How Do I Set the umask Value for a Container?",
"uri":"cce_faq_00230.html",
"doc_type":"usermanual2",
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"code":"602"
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{
"desc":"CCE is a cloud container engine service built on native Kubernetes. It fully supports native Kubernetes versions, Kubernetes APIs, and kubectl.In Kubernetes, the spec of ",
"product_code":"cce",
"title":"What Is the Retry Mechanism When CCE Fails to Start a Pod?",
"uri":"cce_faq_00004.html",
"doc_type":"usermanual2",
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"code":"603"
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{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Scheduling Policies",
"uri":"cce_faq_00284.html",
"doc_type":"usermanual2",
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{
"desc":"The kube-scheduler component in Kubernetes is responsible for pod scheduling. For each newly created pod or other unscheduled pods, kube-scheduler selects an optimal node",
"product_code":"cce",
"title":"How Do I Evenly Distribute Multiple Pods to Each Node?",
"uri":"cce_faq_00260.html",
"doc_type":"usermanual2",
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{
"desc":"During workload scheduling, two containers on a node may compete for resources. As a result, kubelet evicts both containers. This section describes how to set a policy to",
"product_code":"cce",
"title":"How Do I Prevent a Container on a Node from Being Evicted?",
"uri":"cce_faq_00262.html",
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{
"desc":"The kube-scheduler component in Kubernetes is responsible for pod scheduling. For each newly created pod or other unscheduled pods, kube-scheduler selects an optimal node",
"product_code":"cce",
"title":"Why Are Pods Not Evenly Distributed on Nodes?",
"uri":"cce_faq_00314.html",
"doc_type":"usermanual2",
"p_code":"604",
"code":"607"
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{
"desc":"You can run the kubectl drain command to safely evict all pods from a node.By default, the kubectl drain command retains some system pods, for example, everest-csi-driver",
"product_code":"cce",
"title":"How Do I Evict All Pods on a Node?",
"uri":"cce_faq_00326.html",
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"code":"608"
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{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Why Cannot a Pod Be Scheduled to a Node?",
"uri":"cce_faq_00293.html",
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"p_code":"604",
"code":"609"
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{
"desc":"After a workload pod is scheduled on a node based on the node labels, any changes to the labels or kubelet restarts due to configuration changes lead to a fault. About 30",
"product_code":"cce",
"title":"How Do I Troubleshoot a Pod Exit Caused by a Node Label Update?",
"uri":"cce_faq_00487.html",
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"p_code":"604",
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Others",
"uri":"cce_faq_00186.html",
"doc_type":"usermanual2",
"p_code":"585",
"code":"611"
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"desc":"When a cron job is paused mid-execution and later resumed, the controller checks the number of missed scheduling times between the last scheduled time and the current tim",
"product_code":"cce",
"title":"What Should I Do If a Cron Job Cannot Be Restarted After Being Stopped for a Period of Time?",
"uri":"cce_faq_00213.html",
"doc_type":"usermanual2",
"p_code":"611",
"code":"612"
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{
"desc":"The inter-pod discovery service of CCE corresponds to the headless Service of Kubernetes. Headless Services specify None for the cluster IP (spec:clusterIP) in YAML, whic",
"product_code":"cce",
"title":"What Is a Headless Service When I Create a StatefulSet?",
"uri":"cce_faq_00289.html",
"doc_type":"usermanual2",
"p_code":"611",
"code":"613"
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{
"desc":"When you replace the image of a container in a created workload and use an uploaded image on the CCE console, an error message \"Auth is empty, only accept X-Auth-Token or",
"product_code":"cce",
"title":"What Should I Do If Error Message \"Auth is empty\" Is Displayed When a Private Image Is Pulled?",
"uri":"cce_faq_00106.html",
"doc_type":"usermanual2",
"p_code":"611",
"code":"614"
},
{
"desc":"A container image is required to create a container. Images may be stored locally or in a remote image repository.The imagePullPolicy field in the Kubernetes configuratio",
"product_code":"cce",
"title":"What Is the Image Pull Policy for Containers in a CCE Cluster?",
"uri":"cce_faq_00199.html",
"doc_type":"usermanual2",
"p_code":"611",
"code":"615"
},
{
"desc":"When containerd is used as the container engine, there is a possibility that the image layer is missing when an image is pulled to a node. As a result, the workload conta",
"product_code":"cce",
"title":"What Can I Do If a Layer Is Missing During Image Pull?",
"uri":"cce_faq_00319.html",
"doc_type":"usermanual2",
"p_code":"611",
"code":"616"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Networking",
"uri":"cce_faq_00141.html",
"doc_type":"usermanual2",
"p_code":"546",
"code":"617"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Network Exception Troubleshooting",
"uri":"cce_faq_00205.html",
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"p_code":"617",
"code":"618"
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{
"desc":"The issues here are described in order of how likely they are to occur.If the fault persists after you have ruled out one cause, move on to the next one.Check Item 1: Con",
"product_code":"cce",
"title":"How Do I Locate a Workload Networking Fault?",
"uri":"cce_faq_00202.html",
"doc_type":"usermanual2",
"p_code":"618",
"code":"619"
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{
"desc":"CCE does not return any error code when you fail to access your applications using a browser. Check your services first.404 Not FoundIf the error code shown in the follow",
"product_code":"cce",
"title":"Why Does the Browser Return Error Code 404 When I Access a Deployed Application?",
"uri":"cce_faq_00203.html",
"doc_type":"usermanual2",
"p_code":"618",
"code":"620"
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{
"desc":"If a container cannot access the Internet, check whether the node where the container is located can access the Internet. Then check whether the network configuration of ",
"product_code":"cce",
"title":"What Should I Do If a Container Fails to Access the Internet?",
"uri":"cce_faq_00204.html",
"doc_type":"usermanual2",
"p_code":"618",
"code":"621"
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{
"desc":"If a node fails to be connected to the Internet, perform the following operations:Log in to the ECS console and check whether an EIP has been bound to the ECS correspondi",
"product_code":"cce",
"title":"What Should I Do If a Node Fails to Connect to the Internet (Public Network)?",
"uri":"cce_faq_00022.html",
"doc_type":"usermanual2",
"p_code":"618",
"code":"622"
},
{
"desc":"If you configure an HTTPS certificate for a LoadBalancer ingress, access may become abnormal if any of the following issues arise. To fix the problem, refer to the causes",
"product_code":"cce",
"title":"What Could Cause Access Exceptions After Configuring an HTTPS Certificate for a LoadBalancer Ingress?",
"uri":"cce_faq_00455.html",
"doc_type":"usermanual2",
"p_code":"618",
"code":"623"
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"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Network Planning",
"uri":"cce_faq_00146.html",
"doc_type":"usermanual2",
"p_code":"617",
"code":"624"
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{
"desc":"A VPC is similar to a private local area network (LAN) managed by a home gateway whose IP address is 192.168.0.0/16. A VPC is a private network built on the cloud and pro",
"product_code":"cce",
"title":"What Is the Relationship Between Clusters, VPCs, and Subnets?",
"uri":"cce_faq_00266.html",
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"code":"625"
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{
"desc":"CCE is a universal container platform. Its default security group rules apply to common scenarios. When a cluster is created, a security group is automatically created fo",
"product_code":"cce",
"title":"How Can I Configure a Security Group Rule for a Cluster?",
"uri":"cce_faq_00265.html",
"doc_type":"usermanual2",
"p_code":"624",
"code":"626"
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{
"desc":"To create an IPv4/IPv6 dual-stack CCE Turbo cluster, you need to set an IPv6 Service CIDR block. The default CIDR block is fc00::/112, which contains 65,536 IPv6 addresse",
"product_code":"cce",
"title":"How Do I Configure the IPv6 Service CIDR Block When Creating a CCE Turbo Cluster?",
"uri":"cce_faq_00406.html",
"doc_type":"usermanual2",
"p_code":"624",
"code":"627"
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{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Security Hardening",
"uri":"cce_faq_00264.html",
"doc_type":"usermanual2",
"p_code":"617",
"code":"628"
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{
"desc":"QuestionHow do I prevent cluster nodes from being exposed to public networks?SolutionIf access to port 22 of a cluster node is not required, you can define a security gro",
"product_code":"cce",
"title":"How Do I Prevent Cluster Nodes from Being Exposed to Public Networks?",
"uri":"cce_faq_00267.html",
"doc_type":"usermanual2",
"p_code":"628",
"code":"629"
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{
"desc":"After the public API Server address is bound to the cluster, modify the security group rules of port 5443 on the master node to harden the access control policy of the cl",
"product_code":"cce",
"title":"How Do I Configure an Access Policy for a Cluster?",
"uri":"cce_faq_00417.html",
"doc_type":"usermanual2",
"p_code":"628",
"code":"630"
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{
"desc":"If your ingress needs to use HTTPS, you must configure a secret of the IngressTLS or kubernetes.io/tls type when creating an ingress.When creating a secret, ensure that t",
"product_code":"cce",
"title":"How Do I Obtain a TLS Key Certificate?",
"uri":"cce_faq_00185.html",
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"p_code":"628",
"code":"631"
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{
"desc":"Do not add more than 1000 instances to the same security group. Otherwise, the security group performance may deteriorate.You can change the maximum number of servers dis",
"product_code":"cce",
"title":"How Do I Change the Security Group of Nodes in a Cluster in Batches?",
"uri":"cce_faq_00392.html",
"doc_type":"usermanual2",
"p_code":"628",
"code":"632"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Network Configuration",
"uri":"cce_faq_00275.html",
"doc_type":"usermanual2",
"p_code":"617",
"code":"633"
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{
"desc":"Add hostNetwork: true to the spec.spec. in the YAML file of the workload to which the containers will belong.Configure node affinity policies, in addition to perform the ",
"product_code":"cce",
"title":"How Can Container IP Addresses Survive a Container Restart?",
"uri":"cce_faq_00192.html",
"doc_type":"usermanual2",
"p_code":"633",
"code":"634"
},
{
"desc":"Pod subnets can be deleted from CCE Turbo clusters of v1.23.17-r0, v1.25.12-r0, v1.27.9-r0, v1.28.7-r0, v1.29.3-r0, or later versions.Deleting a pod subnet from a cluster",
"product_code":"cce",
"title":"How Can I Check Whether an ENI Is Used by a Cluster?",
"uri":"cce_faq_00446.html",
"doc_type":"usermanual2",
"p_code":"633",
"code":"635"
},
{
"desc":"Pod subnets can be deleted from CCE Turbo clusters of v1.23.17-r0, v1.25.12-r0, v1.28.7-r0, or later versions.When you delete a subnet, CCE does not automatically remove ",
"product_code":"cce",
"title":"How Can I Delete a Security Group Rule Associated with a Deleted Subnet?",
"uri":"cce_faq_00447.html",
"doc_type":"usermanual2",
"p_code":"633",
"code":"636"
},
{
"desc":"With CCE, you can associate multiple ingresses with a single load balancer listener and establish various forwarding policies. Listener configuration parameters are store",
"product_code":"cce",
"title":"How Can I Determine Which Ingress the Listener Settings Have Been Applied To?",
"uri":"cce_faq_00460.html",
"doc_type":"usermanual2",
"p_code":"633",
"code":"637"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Storage",
"uri":"cce_faq_00037.html",
"doc_type":"usermanual2",
"p_code":"546",
"code":"638"
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{
"desc":"The default storage size of a container is 10 GiB. If a large volume of data is generated in the container, expand the capacity using the method described in this topic.R",
"product_code":"cce",
"title":"How Do I Expand the Storage Capacity of a Container?",
"uri":"cce_faq_00224.html",
"doc_type":"usermanual2",
"p_code":"638",
"code":"639"
},
{
"desc":"Container storage provides storage for container workloads. It supports multiple storage classes. A pod can use any amount of storage.Currently, CCE supports local, EVS, ",
"product_code":"cce",
"title":"What Are the Differences Among CCE Storage Classes in Terms of Persistent Storage and Multi-Node Mounting?",
"uri":"cce_faq_00038.html",
"doc_type":"usermanual2",
"p_code":"638",
"code":"640"
},
{
"desc":"If System Component Storage is set to System Disk, you do not need to add a data disk.Data disks are required if System Component Storage is set to Data Disk.A data disk ",
"product_code":"cce",
"title":"Can I Create a CCE Node Without Adding a Data Disk to the Node?",
"uri":"cce_faq_00089.html",
"doc_type":"usermanual2",
"p_code":"638",
"code":"641"
},
{
"desc":"When a Service deployed on CCE attempts to upload files to OBS after receiving an access request from an offline machine, an error message is displayed, indicating that t",
"product_code":"cce",
"title":"What Should I Do If the Host Cannot Be Found When Files Need to Be Uploaded to OBS During the Access to the CCE Service from a Public Network?",
"uri":"cce_faq_00218.html",
"doc_type":"usermanual2",
"p_code":"638",
"code":"642"
},
{
"desc":"The Kubernetes pod structure does not contain ExtendPathMode. Therefore, when a user calls the API for creating a pod or deployment by using client-go, the created pod do",
"product_code":"cce",
"title":"How Can I Achieve Compatibility Between ExtendPathMode and Kubernetes client-go?",
"uri":"cce_faq_00235.html",
"doc_type":"usermanual2",
"p_code":"638",
"code":"643"
},
{
"desc":"CCE PersistentVolumeClaims (PVCs) are implemented as they are in Kubernetes. A PVC is defined as a storage declaration and is decoupled from underlying storage. It is not",
"product_code":"cce",
"title":"Can CCE PVCs Detect Underlying Storage Faults?",
"uri":"cce_faq_00316.html",
"doc_type":"usermanual2",
"p_code":"638",
"code":"644"
},
{
"desc":"An existing PV or PVC cannot be deleted by running the kubectl delete command and it remains in the terminating state.To prevent data loss caused by mis-deletion of PVs o",
"product_code":"cce",
"title":"Why Cannot I Delete a PV or PVC Using the kubectl delete Command?",
"uri":"cce_faq_00418.html",
"doc_type":"usermanual2",
"p_code":"638",
"code":"645"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Namespace",
"uri":"cce_faq_00324.html",
"doc_type":"usermanual2",
"p_code":"546",
"code":"646"
},
{
"desc":"The namespace remains in the Deleting state. The error message \"DiscoveryFailed\" is displayed in status in the YAML file.In the preceding figure, the full error message i",
"product_code":"cce",
"title":"What Should I Do If a Namespace Fails to Be Deleted Due to an APIService Object Access Failure?",
"uri":"cce_faq_00325.html",
"doc_type":"usermanual2",
"p_code":"646",
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},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Chart and Add-on",
"uri":"cce_faq_00215.html",
"doc_type":"usermanual2",
"p_code":"546",
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},
{
"desc":"When an add-on fails to be installed, the error message \"The release name is already exist\" is returned.The add-on release record remains in the Kubernetes cluster. Gener",
"product_code":"cce",
"title":"What Should I Do If Installation of an Add-on Fails and \"The release name is already exist\" Is Displayed?",
"uri":"cce_faq_00322.html",
"doc_type":"usermanual2",
"p_code":"648",
"code":"649"
},
{
"desc":"After changing the cluster scale, adjust the add-on resource quotas based on the cluster scale to ensure that the add-on pods can run properly. For example, if you expand",
"product_code":"cce",
"title":"How Do I Configure the Add-on Resource Quotas Based on Cluster Scale?",
"uri":"cce_faq_00429.html",
"doc_type":"usermanual2",
"p_code":"648",
"code":"650"
},
{
"desc":"The NGINX Ingress Controller add-on is in the unknown state, and after this add-on is uninstalled, residual components still remain.Involved Kubernetes resources include:",
"product_code":"cce",
"title":"How Can I Clean Up Residual Resources After the NGINX Ingress Controller Add-on in the Unknown State Is Deleted?",
"uri":"cce_faq_00438.html",
"doc_type":"usermanual2",
"p_code":"648",
"code":"651"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"API & kubectl FAQs",
"uri":"cce_faq_00207.html",
"doc_type":"usermanual2",
"p_code":"546",
"code":"652"
},
{
"desc":"You can use either of the following methods to access a cluster API server:(Recommended) Through the cluster API. This access mode uses certificate authentication. It is ",
"product_code":"cce",
"title":"How Can I Access a Cluster API Server?",
"uri":"cce_faq_00025.html",
"doc_type":"usermanual2",
"p_code":"652",
"code":"653"
},
{
"desc":"The CCE console does not support the display of the following Kubernetes resources: DaemonSets, ReplicationControllers, ReplicaSets, and endpoints.To query these resource",
"product_code":"cce",
"title":"Can the Resources Created Using APIs or kubectl Be Displayed on the CCE Console?",
"uri":"cce_faq_00208.html",
"doc_type":"usermanual2",
"p_code":"652",
"code":"654"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"How Do I Download kubeconfig for Connecting to a Cluster Using kubectl?",
"uri":"cce_faq_00041.html",
"doc_type":"usermanual2",
"p_code":"652",
"code":"655"
},
{
"desc":"The error message \"Error from server (ServiceUnavailable): the server is currently unable to handle the request (get nodes.metrics.k8s.io)\" is displayed after the kubectl",
"product_code":"cce",
"title":"How Do I Rectify the Error Reported When Running the kubectl top node Command?",
"uri":"cce_faq_00321.html",
"doc_type":"usermanual2",
"p_code":"652",
"code":"656"
},
{
"desc":"When you use kubectl to create or query Kubernetes resources, the following output is returned:# kubectl get deploy Error from server (Forbidden): deployments.apps is for",
"product_code":"cce",
"title":"Why Is \"Error from server (Forbidden)\" Displayed When I Use kubectl?",
"uri":"cce_faq_00311.html",
"doc_type":"usermanual2",
"p_code":"652",
"code":"657"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"DNS FAQs",
"uri":"cce_faq_00001.html",
"doc_type":"usermanual2",
"p_code":"546",
"code":"658"
},
{
"desc":"CoreDNS QPS is positively correlated with the CPU usage. If the QPS is high, adjust the coredns instance specifications based on the QPS.If the add-on performance reaches",
"product_code":"cce",
"title":"What Should I Do If Domain Name Resolution Fails in a CCE Cluster?",
"uri":"cce_faq_00197.html",
"doc_type":"usermanual2",
"p_code":"658",
"code":"659"
},
{
"desc":"A customer bound its domain name to the private domain names in the DNS service and also to a specific VPC. It is found that the ECSs in the VPC can properly resolve the ",
"product_code":"cce",
"title":"Why Does a Container in a CCE Cluster Fail to Perform DNS Resolution?",
"uri":"cce_faq_00107.html",
"doc_type":"usermanual2",
"p_code":"658",
"code":"660"
},
{
"desc":"The following is an example resolv.conf file for a container in a workload:In the preceding information:nameserver: IP address of the DNS. Set this parameter to the clust",
"product_code":"cce",
"title":"How Do I Optimize the Configuration If the External Domain Name Resolution Is Slow or Times Out?",
"uri":"cce_faq_00195.html",
"doc_type":"usermanual2",
"p_code":"658",
"code":"661"
},
{
"desc":"CCE uses dnsPolicy to identify different DNS policies for each pod. The value of dnsPolicy can be either of the following:None: No DNS policy is configured. In this mode,",
"product_code":"cce",
"title":"How Do I Configure a DNS Policy for a Container?",
"uri":"cce_faq_00194.html",
"doc_type":"usermanual2",
"p_code":"658",
"code":"662"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Image Repository FAQs",
"uri":"cce_faq_00093.html",
"doc_type":"usermanual2",
"p_code":"546",
"code":"663"
},
{
"desc":"SWR manages images for CCE. It provides the following ways to upload images:Uploading an Image Through the Client",
"product_code":"cce",
"title":"How Do I Upload My Images to CCE?",
"uri":"cce_faq_00032.html",
"doc_type":"usermanual2",
"p_code":"663",
"code":"664"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Permissions",
"uri":"cce_faq_00397.html",
"doc_type":"usermanual2",
"p_code":"546",
"code":"665"
},
{
"desc":"Namespace permissions and cluster management permissions are independent and complementary to each other.Namespace permissions: apply to clusters and are used to manage o",
"product_code":"cce",
"title":"Can I Configure Only Namespace Permissions Without Cluster Management Permissions?",
"uri":"cce_faq_00398.html",
"doc_type":"usermanual2",
"p_code":"665",
"code":"666"
},
{
"desc":"CCE has cloud service APIs and cluster APIs.Cloud service APIs: You can perform operations on the infrastructure (such as creating nodes) and cluster resources (such as c",
"product_code":"cce",
"title":"Can I Use CCE APIs If the Cluster Management Permissions Are Not Configured?",
"uri":"cce_faq_00399.html",
"doc_type":"usermanual2",
"p_code":"665",
"code":"667"
},
{
"desc":"IAM authentication is not required for running kubectl commands. Therefore, you can run kubectl commands without configuring cluster management (IAM) permissions. However",
"product_code":"cce",
"title":"Can I Use kubectl If the Cluster Management Permissions Are Not Configured?",
"uri":"cce_faq_00400.html",
"doc_type":"usermanual2",
"p_code":"665",
"code":"668"
},
{
"desc":"When creating an OBS PVC in a CCE cluster, you need to select an access key (AK/SK). OBS access keys are classified into the following types:(Recommended) Custom access k",
"product_code":"cce",
"title":"What Is an OBS Global Access Key and How Do I Check Whether a Global Access Key Is Used in a Cluster?",
"uri":"cce_faq_00484.html",
"doc_type":"usermanual2",
"p_code":"665",
"code":"669"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Migrating Data from CCE 1.0 to CCE 2.0",
"uri":"cce_01_9999.html",
"doc_type":"usermanual2",
"p_code":"",
"code":"670"
},
{
"desc":"CCE 2.0 inherits and modifies the features of CCE 1.0, and release new features.Modified features:Clusters in CCE 1.0 are equivalent to Hybrid clusters in CCE 2.0.CCE 2.0",
"product_code":"cce",
"title":"Differences Between CCE 1.0 and CCE 2.0",
"uri":"cce_01_9998.html",
"doc_type":"usermanual2",
"p_code":"670",
"code":"671"
},
{
"desc":"Migrate the images stored in the image repository of CCE 1.0 to CCE 2.0.A VM is available. The VM is bound to a public IP address and can access the Internet. Docker (ear",
"product_code":"cce",
"title":"Migrating Images",
"uri":"cce_01_9997.html",
"doc_type":"usermanual2",
"p_code":"670",
"code":"672"
},
{
"desc":"Create Hybrid clusters on the CCE 2.0 console. These new Hybrid clusters should have the same specifications with those created on CCE 1.0.To create clusters using APIs, ",
"product_code":"cce",
"title":"Migrating Clusters",
"uri":"cce_01_9996.html",
"doc_type":"usermanual2",
"p_code":"670",
"code":"673"
},
{
"desc":"This section describes how to create a Deployment with the same specifications as that in CCE 1.0 on the CCE 2.0 console.It is advised to delete the applications on CCE 1",
"product_code":"cce",
"title":"Migrating Applications",
"uri":"cce_01_9995.html",
"doc_type":"usermanual2",
"p_code":"670",
"code":"674"
},
{
"desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"product_code":"cce",
"title":"Change History",
"uri":"cce_01_0300.html",
"doc_type":"usermanual2",
"p_code":"",
"code":"675"
}
]
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