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doc-exports/docs/cce/umn/CLASS.TXT.json
Dong, Qiu Jian 86fb05065f CCE UMN for 24.2.0 version -20240428 
Reviewed-by: Eotvos, Oliver <oliver.eotvos@t-systems.com>
Co-authored-by: Dong, Qiu Jian <qiujiandong1@huawei.com>
Co-committed-by: Dong, Qiu Jian <qiujiandong1@huawei.com>
2024-06-10 08:19:07 +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.",
"product_code":"cce",
"title":"Service Overview",
"uri":"cce_productdesc_0000.html",
"doc_type":"usermanual2",
"p_code":"",
"code":"1"
},
{
"desc":"Cloud Container Engine (CCE) is a scalable, enterprise-class hosted Kubernetes service. With CCE, you can easily deploy, manage, and scale containerized applications in t",
"product_code":"cce",
"title":"What Is CCE?",
"uri":"cce_productdesc_0001.html",
"doc_type":"usermanual2",
"p_code":"1",
"code":"2"
},
{
"desc":"CCE is a container service built on Docker and Kubernetes. A wealth of features enables you to run container clusters at scale. CCE eases containerization thanks to its r",
"product_code":"cce",
"title":"Product Advantages",
"uri":"cce_productdesc_0003.html",
"doc_type":"usermanual2",
"p_code":"1",
"code":"3"
},
{
"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":"Application Scenarios",
"uri":"cce_productdesc_0004.html",
"doc_type":"usermanual2",
"p_code":"1",
"code":"4"
},
{
"desc":"In CCE, you can run clusters with x86 and Arm nodes. Create and manage Kubernetes clusters. Deploy containerized applications in them. All done in CCE.Containerized web a",
"product_code":"cce",
"title":"Containerized Application Management",
"uri":"cce_productdesc_0007.html",
"doc_type":"usermanual2",
"p_code":"4",
"code":"5"
},
{
"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",
"code":"6"
},
{
"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",
"doc_type":"usermanual2",
"p_code":"4",
"code":"7"
},
{
"desc":"Multi-cloud deployment and disaster recoveryRunning apps in containers on different clouds can ensure high availability. When a cloud is down, other clouds respond and se",
"product_code":"cce",
"title":"Hybrid Cloud",
"uri":"cce_productdesc_0018.html",
"doc_type":"usermanual2",
"p_code":"4",
"code":"8"
},
{
"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":"Constraints",
"uri":"cce_productdesc_0005.html",
"doc_type":"usermanual2",
"p_code":"1",
"code":"9"
},
{
"desc":"CCE allows you to assign permissions to IAM users and user groups under your tenant accounts. CCE combines the advantages of IAM and RBAC to provide a variety of authoriz",
"product_code":"cce",
"title":"Permissions",
"uri":"cce_productdesc_0002.html",
"doc_type":"usermanual2",
"p_code":"1",
"code":"10"
},
{
"desc":"CCE works with the following cloud services and requires permissions to access them.",
"product_code":"cce",
"title":"Related Services",
"uri":"cce_productdesc_0008.html",
"doc_type":"usermanual2",
"p_code":"1",
"code":"11"
},
{
"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",
"product_code":"cce",
"title":"Regions and AZs",
"uri":"cce_productdesc_0012.html",
"doc_type":"usermanual2",
"p_code":"1",
"code":"12"
},
{
"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":"Product Bulletin",
"uri":"cce_bulletin_0000.html",
"doc_type":"usermanual2",
"p_code":"",
"code":"13"
},
{
"desc":"This section explains versioning in CCE, and the policies for Kubernetes version support.Version number: The format is x.y.z, where x.y is the major version and z is the ",
"product_code":"cce",
"title":"Kubernetes Version Support Mechanism",
"uri":"cce_bulletin_0003.html",
"doc_type":"usermanual2",
"p_code":"13",
"code":"14"
},
{
"desc":"Dear users,We are pleased to announce that a brand-new CCE console is available. The new console is modern, visually appealing, and concise, providing a more comfortable ",
"product_code":"cce",
"title":"CCE Console Upgrade",
"uri":"cce_bulletin_0061.html",
"doc_type":"usermanual2",
"p_code":"13",
"code":"15"
},
{
"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",
"p_code":"13",
"code":"16"
},
{
"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",
"doc_type":"usermanual2",
"p_code":"16",
"code":"17"
},
{
"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",
"doc_type":"usermanual2",
"p_code":"16",
"code":"18"
},
{
"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",
"doc_type":"usermanual2",
"p_code":"16",
"code":"19"
},
{
"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":"Getting Started",
"uri":"cce_qs_0000.html",
"doc_type":"usermanual2",
"p_code":"",
"code":"20"
},
{
"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",
"product_code":"cce",
"title":"Introduction",
"uri":"cce_qs_0001.html",
"doc_type":"usermanual2",
"p_code":"20",
"code":"21"
},
{
"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",
"uri":"cce_qs_0006.html",
"doc_type":"usermanual2",
"p_code":"20",
"code":"22"
},
{
"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 CCE Sta",
"product_code":"cce",
"title":"Creating a Kubernetes Cluster",
"uri":"cce_qs_0008.html",
"doc_type":"usermanual2",
"p_code":"20",
"code":"23"
},
{
"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",
"product_code":"cce",
"title":"Creating a Deployment (Nginx)",
"uri":"cce_qs_0003.html",
"doc_type":"usermanual2",
"p_code":"20",
"code":"24"
},
{
"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":"Deploying WordPress and MySQL That Depend on Each Other",
"uri":"cce_qs_0007.html",
"doc_type":"usermanual2",
"p_code":"20",
"code":"25"
},
{
"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",
"product_code":"cce",
"title":"Overview",
"uri":"cce_qs_0009.html",
"doc_type":"usermanual2",
"p_code":"25",
"code":"26"
},
{
"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":"Creating a MySQL Workload",
"uri":"cce_qs_0004.html",
"doc_type":"usermanual2",
"p_code":"25",
"code":"27"
},
{
"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",
"product_code":"cce",
"title":"Creating a WordPress Workload",
"uri":"cce_qs_0005.html",
"doc_type":"usermanual2",
"p_code":"25",
"code":"28"
},
{
"desc":"During service deployment or running, you may trigger high-risk operations at different levels, causing service faults or interruption. To help you better estimate and av",
"product_code":"cce",
"title":"High-Risk Operations and Solutions",
"uri":"cce_10_0054.html",
"doc_type":"usermanual2",
"p_code":"",
"code":"29"
},
{
"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":"Clusters",
"uri":"cce_10_0091.html",
"doc_type":"usermanual2",
"p_code":"",
"code":"30"
},
{
"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 Overview",
"uri":"cce_10_0002.html",
"doc_type":"usermanual2",
"p_code":"30",
"code":"31"
},
{
"desc":"Kubernetes is an open source container orchestration engine for automating deployment, scaling, and management of containerized applications.For developers, Kubernetes is",
"product_code":"cce",
"title":"Basic Cluster Information",
"uri":"cce_10_0430.html",
"doc_type":"usermanual2",
"p_code":"31",
"code":"32"
},
{
"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":"Kubernetes Version Release Notes",
"uri":"cce_10_0068.html",
"doc_type":"usermanual2",
"p_code":"31",
"code":"33"
},
{
"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",
"doc_type":"usermanual2",
"p_code":"33",
"code":"34"
},
{
"desc":"CCE allows you to create clusters of Kubernetes 1.27. This section describes the changes made in Kubernetes 1.27 compared with Kubernetes 1.25.New FeaturesDeprecations an",
"product_code":"cce",
"title":"Kubernetes 1.27 Release Notes",
"uri":"cce_bulletin_0059.html",
"doc_type":"usermanual2",
"p_code":"33",
"code":"35"
},
{
"desc":"CCE has passed the Certified Kubernetes Conformance Program and is a certified Kubernetes offering. This section describes the changes made in Kubernetes 1.25 compared wi",
"product_code":"cce",
"title":"Kubernetes 1.25 Release Notes",
"uri":"cce_bulletin_0058.html",
"doc_type":"usermanual2",
"p_code":"33",
"code":"36"
},
{
"desc":"This section describes the updates in CCE Kubernetes 1.23.Kubernetes 1.23 Release NotesFlexVolume is deprecated. Use CSI.HorizontalPodAutoscaler v2 is promoted to GA, and",
"product_code":"cce",
"title":"Kubernetes 1.23 Release Notes",
"uri":"cce_bulletin_0027.html",
"doc_type":"usermanual2",
"p_code":"33",
"code":"37"
},
{
"desc":"This section describes the updates in CCE Kubernetes 1.21.Kubernetes 1.21 Release NotesCronJob is now in the stable state, and the version number changes to batch/v1.The ",
"product_code":"cce",
"title":"Kubernetes 1.21 Release Notes",
"uri":"cce_bulletin_0026.html",
"doc_type":"usermanual2",
"p_code":"33",
"code":"38"
},
{
"desc":"CCE has passed the Certified Kubernetes Conformance Program and is a certified Kubernetes offering. This section describes the updates in CCE Kubernetes 1.19.Kubernetes v",
"product_code":"cce",
"title":"Kubernetes 1.19 (EOM) Release Notes",
"uri":"cce_whsnew_0010.html",
"doc_type":"usermanual2",
"p_code":"33",
"code":"39"
},
{
"desc":"CCE has passed the Certified Kubernetes Conformance Program and is a certified Kubernetes offering. This section describes the updates in CCE Kubernetes 1.17.All resource",
"product_code":"cce",
"title":"Kubernetes 1.17 (EOM) Release Notes",
"uri":"cce_whsnew_0007.html",
"doc_type":"usermanual2",
"p_code":"33",
"code":"40"
},
{
"desc":"In CCE v1.27 and later versions, all nodes support only the containerd container engine.All nodes in the CCE clusters of version 1.25, except the ones running EulerOS 2.5",
"product_code":"cce",
"title":"Patch Version Release Notes",
"uri":"cce_10_0405.html",
"doc_type":"usermanual2",
"p_code":"31",
"code":"41"
},
{
"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":"Creating a Cluster",
"uri":"cce_10_0298.html",
"doc_type":"usermanual2",
"p_code":"30",
"code":"42"
},
{
"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",
"doc_type":"usermanual2",
"p_code":"42",
"code":"43"
},
{
"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":"42",
"code":"44"
},
{
"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":"42",
"code":"45"
},
{
"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":"30",
"code":"46"
},
{
"desc":"This section uses a CCE standard cluster as an example to describe how to access a CCE cluster using kubectl.When you access a cluster using kubectl, CCE uses kubeconfig ",
"product_code":"cce",
"title":"Connecting to a Cluster Using kubectl",
"uri":"cce_10_0107.html",
"doc_type":"usermanual2",
"p_code":"46",
"code":"47"
},
{
"desc":"This section describes how to obtain the cluster certificate from the console and use it access Kubernetes clusters.The downloaded certificate contains three files: clien",
"product_code":"cce",
"title":"Connecting to a Cluster Using an X.509 Certificate",
"uri":"cce_10_0175.html",
"doc_type":"usermanual2",
"p_code":"46",
"code":"48"
},
{
"desc":"Subject Alternative Name (SAN) allows multiple values (including IP addresses, domain names, and so on) to be associated with certificates. A SAN is usually used by the c",
"product_code":"cce",
"title":"Accessing a Cluster Using a Custom Domain Name",
"uri":"cce_10_0367.html",
"doc_type":"usermanual2",
"p_code":"46",
"code":"49"
},
{
"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":"30",
"code":"50"
},
{
"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":"Upgrade Overview",
"uri":"cce_10_0197.html",
"doc_type":"usermanual2",
"p_code":"50",
"code":"51"
},
{
"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 Upgrade Overview.Before upgra",
"product_code":"cce",
"title":"Before You Start",
"uri":"cce_10_0302.html",
"doc_type":"usermanual2",
"p_code":"50",
"code":"52"
},
{
"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":"50",
"code":"53"
},
{
"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":"53",
"code":"54"
},
{
"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":"53",
"code":"55"
},
{
"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":"53",
"code":"56"
},
{
"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":"53",
"code":"57"
},
{
"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":"53",
"code":"58"
},
{
"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":"53",
"code":"59"
},
{
"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":"50",
"code":"60"
},
{
"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":"50",
"code":"61"
},
{
"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":"61",
"code":"62"
},
{
"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":"61",
"code":"63"
},
{
"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":"61",
"code":"64"
},
{
"desc":"Check the following items:Check whether the add-on status is normal.Check whether the add-on support 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":"61",
"code":"65"
},
{
"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":"61",
"code":"66"
},
{
"desc":"Check whether CCE can connect to your master nodes.Contact technical support.",
"product_code":"cce",
"title":"SSH Connectivity of Master Nodes",
"uri":"cce_10_0435.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"67"
},
{
"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":"61",
"code":"68"
},
{
"desc":"Check whether the Protocol & Port of the worker node security groups are set to ICMP: All and whether the security group with the source IP address set to the master node",
"product_code":"cce",
"title":"Security Groups",
"uri":"cce_10_0437.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"69"
},
{
"desc":"Check whether the node needs to be migrated.For the 1.15 cluster that is upgraded from 1.13 in rolling mode, migrate (reset or create and replace) all nodes before perfor",
"product_code":"cce",
"title":"To-Be-Migrated Nodes",
"uri":"cce_10_0439.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"70"
},
{
"desc":"Check whether there are discarded resources in the clusters.Scenario: The Service in the clusters of v1.25 or later has discarded annotation: tolerate-unready-endpoints.E",
"product_code":"cce",
"title":"Discarded Kubernetes Resources",
"uri":"cce_10_0440.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"71"
},
{
"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":"61",
"code":"72"
},
{
"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.cce-agent doe",
"product_code":"cce",
"title":"CCE Agent Versions",
"uri":"cce_10_0442.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"73"
},
{
"desc":"Check whether the CPU usage of the node exceeds 90%.Upgrade the cluster during off-peak hours.Check whether too many pods are deployed on the node. If yes, reschedule pod",
"product_code":"cce",
"title":"Node CPU Usage",
"uri":"cce_10_0443.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"74"
},
{
"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":"61",
"code":"75"
},
{
"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":"61",
"code":"76"
},
{
"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":"61",
"code":"77"
},
{
"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":"61",
"code":"78"
},
{
"desc":"Check whether the kubelet on the node is running properly.Scenario 1: The kubelet status is abnormal.If the kubelet malfunctions, the node is unavailable. Restore the nod",
"product_code":"cce",
"title":"Kubelet",
"uri":"cce_10_0448.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"79"
},
{
"desc":"Check whether the memory usage of the node exceeds 90%.Upgrade the cluster during off-peak hours.Check whether too many pods are deployed on the node. If yes, reschedule ",
"product_code":"cce",
"title":"Node Memory",
"uri":"cce_10_0449.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"80"
},
{
"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":"61",
"code":"81"
},
{
"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":"61",
"code":"82"
},
{
"desc":"Check whether the number of CPUs on the master node is greater than 2.If the number of CPUs on the master node is 2, contact technical support to expand the number to 4 o",
"product_code":"cce",
"title":"Node CPUs",
"uri":"cce_10_0452.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"83"
},
{
"desc":"Check whether the Python commands are available on a node.If the command output is not 0, the check fails.Install Python before the upgrade.",
"product_code":"cce",
"title":"Node Python Commands",
"uri":"cce_10_0453.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"84"
},
{
"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":"61",
"code":"85"
},
{
"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":"61",
"code":"86"
},
{
"desc":"Check whether the containerd.sock file exists on the node. This file affects the startup of container runtime in the Euler OS.Scenario: The Docker used by the node is the",
"product_code":"cce",
"title":"containerd.sock",
"uri":"cce_10_0457.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"87"
},
{
"desc":"Before the upgrade, check whether an internal error occurs.If this check fails, contact technical support.",
"product_code":"cce",
"title":"Internal Errors",
"uri":"cce_10_0458.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"88"
},
{
"desc":"Check whether inaccessible mount points exist on the node.Scenario: There are inaccessible mount points on the node.If NFS (such as obsfs or SFS) is used by the node and ",
"product_code":"cce",
"title":"Node Mount Points",
"uri":"cce_10_0459.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"89"
},
{
"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":"61",
"code":"90"
},
{
"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":"61",
"code":"91"
},
{
"desc":"Check whether the current cce-controller-hpa add-on has compatibility restrictions.The current cce-controller-hpa add-on has compatibility restrictions. An add-on that ca",
"product_code":"cce",
"title":"cce-hpa-controller Restrictions",
"uri":"cce_10_0479.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"92"
},
{
"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":"61",
"code":"93"
},
{
"desc":"Check whether the container runtime and network components on the worker nodes are healthy.If a worker node component malfunctions, log in to the node to check the status",
"product_code":"cce",
"title":"Health of Worker Node Components",
"uri":"cce_10_0484.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"94"
},
{
"desc":"Check whether the Kubernetes, container runtime, and network components of the master nodes are healthy.If a master node component malfunctions, contact technical support",
"product_code":"cce",
"title":"Health of Master Node Components",
"uri":"cce_10_0485.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"95"
},
{
"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":"61",
"code":"96"
},
{
"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":"61",
"code":"97"
},
{
"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 Capabilities of a CCE Turbo Cluster",
"uri":"cce_10_0488.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"98"
},
{
"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":"Node NetworkManager",
"uri":"cce_10_0489.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"99"
},
{
"desc":"Check the ID file format.",
"product_code":"cce",
"title":"Node ID File",
"uri":"cce_10_0490.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"100"
},
{
"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":"61",
"code":"101"
},
{
"desc":"Check whether the configuration files of key components exist on the node.The following table lists the files to be checked.Contact technical support to restore the confi",
"product_code":"cce",
"title":"Node Configuration File",
"uri":"cce_10_0492.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"102"
},
{
"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":"61",
"code":"103"
},
{
"desc":"Whether the sudo commands and sudo-related files of the node are workingScenario 1: The sudo command fails to be executed.During the in-place cluster upgrade, the sudo co",
"product_code":"cce",
"title":"sudo Commands of a Node",
"uri":"cce_10_0494.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"104"
},
{
"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 Commands of Nodes",
"uri":"cce_10_0495.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"105"
},
{
"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":"61",
"code":"106"
},
{
"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":"61",
"code":"107"
},
{
"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":"61",
"code":"108"
},
{
"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":"61",
"code":"109"
},
{
"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":"61",
"code":"110"
},
{
"desc":"Check whether the source version of the cluster is earlier than v1.11 and the target version is later than v1.23.If the source version of the cluster is earlier than v1.1",
"product_code":"cce",
"title":"Historical Upgrade Records",
"uri":"cce_10_0501.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"111"
},
{
"desc":"Check whether the CIDR block of the cluster management plane is the same as that configured on the backbone network.If the CIDR block of the cluster management plane is d",
"product_code":"cce",
"title":"CIDR Block of the Cluster Management Plane",
"uri":"cce_10_0502.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"112"
},
{
"desc":"The GPU add-on is involved in the upgrade, which may affect the GPU driver installation during the creation of a GPU node.The GPU add-on driver needs to be configured by ",
"product_code":"cce",
"title":"GPU Add-on",
"uri":"cce_10_0503.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"113"
},
{
"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 Parameter Settings",
"uri":"cce_10_0504.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"114"
},
{
"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 Versions",
"uri":"cce_10_0505.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"115"
},
{
"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":"61",
"code":"116"
},
{
"desc":"Check whether swap has been enabled on cluster nodes.By default, swap is disabled on CCE nodes. Check the necessity of enabling swap manually and determine the impact of ",
"product_code":"cce",
"title":"Node Swap",
"uri":"cce_10_0507.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"117"
},
{
"desc":"Check whether the service container running on the node may restart when the containerd component is upgraded on the node that uses containerd in the current cluster.Ensu",
"product_code":"cce",
"title":"Check containerd pod restart risk",
"uri":"cce_10_0510.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"118"
},
{
"desc":"Check whether the configuration of the CCE AI Suite add-on in a cluster has been intrusively modified. If so, upgrading the cluster may fail.",
"product_code":"cce",
"title":"Key GPU Add-on Parameters",
"uri":"cce_10_0511.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"119"
},
{
"desc":"Check whether GPU or NPU 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",
"product_code":"cce",
"title":"GPU or NPU Pod Rebuild Risks",
"uri":"cce_10_0512.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"120"
},
{
"desc":"Check whether the access control of the ELB listener has been configured for the Service in the current cluster using annotations and whether the configurations are corre",
"product_code":"cce",
"title":"ELB Listener Access Control",
"uri":"cce_10_0513.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"121"
},
{
"desc":"Check whether the flavor of the master nodes in the cluster is the same as the actual flavor of these nodes.Flavor inconsistency is typically due to a modification made o",
"product_code":"cce",
"title":"Master Node Flavor",
"uri":"cce_10_0514.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"122"
},
{
"desc":"Check whether the number of available IP addresses in the cluster subnet supports rolling upgrade.If the number of IP addresses in the selected cluster subnet is insuffic",
"product_code":"cce",
"title":"Subnet Quota of Master Nodes",
"uri":"cce_10_0515.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"123"
},
{
"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 the runtime on your node is",
"product_code":"cce",
"title":"Node Runtime",
"uri":"cce_10_0516.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"124"
},
{
"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 the runtime on your node po",
"product_code":"cce",
"title":"Node Pool Runtime",
"uri":"cce_10_0517.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"125"
},
{
"desc":"Check the number of images on your node. If the number is greater than 1000, Docker startup may be slow.Contact O&M personnel to check whether this issue affects the upgr",
"product_code":"cce",
"title":"Number of Node Images",
"uri":"cce_10_0518.html",
"doc_type":"usermanual2",
"p_code":"61",
"code":"126"
},
{
"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":"30",
"code":"127"
},
{
"desc":"CCE allows you to manage cluster parameters, through which you can let core components work under your requirements.This function is supported only in clusters of v1.15 a",
"product_code":"cce",
"title":"Cluster Configuration Management",
"uri":"cce_10_0213.html",
"doc_type":"usermanual2",
"p_code":"127",
"code":"128"
},
{
"desc":"If enabled, concurrent requests are dynamically controlled based on the resource pressure of master nodes to keep them and the cluster available.The cluster version must ",
"product_code":"cce",
"title":"Cluster Overload Control",
"uri":"cce_10_0602.html",
"doc_type":"usermanual2",
"p_code":"127",
"code":"129"
},
{
"desc":"CCE allows you to change the number of nodes managed in a cluster.This function is supported for clusters of v1.15 and later versions.Starting from v1.15.11, the number o",
"product_code":"cce",
"title":"Changing Cluster Scale",
"uri":"cce_10_0403.html",
"doc_type":"usermanual2",
"p_code":"127",
"code":"130"
},
{
"desc":"Deleting a cluster will delete the nodes in the cluster (excluding accepted nodes), data disks attached to the nodes, workloads, and Services. Related services cannot be ",
"product_code":"cce",
"title":"Deleting a Cluster",
"uri":"cce_10_0212.html",
"doc_type":"usermanual2",
"p_code":"127",
"code":"131"
},
{
"desc":"If you do not need to use a cluster temporarily, hibernate the cluster.After a cluster is hibernated, resources such as workloads cannot be created or managed in the clus",
"product_code":"cce",
"title":"Hibernating and Waking Up a Cluster",
"uri":"cce_10_0214.html",
"doc_type":"usermanual2",
"p_code":"127",
"code":"132"
},
{
"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":"Nodes",
"uri":"cce_10_0183.html",
"doc_type":"usermanual2",
"p_code":"",
"code":"133"
},
{
"desc":"A container cluster consists of a set of worker machines, called nodes, that run containerized applications. A node can be a virtual machine (VM) or a physical machine (P",
"product_code":"cce",
"title":"Node Overview",
"uri":"cce_10_0180.html",
"doc_type":"usermanual2",
"p_code":"133",
"code":"134"
},
{
"desc":"Container engines, one of the most important components of Kubernetes, manage the lifecycle of images and containers. The kubelet interacts with a container runtime throu",
"product_code":"cce",
"title":"Container Engine",
"uri":"cce_10_0462.html",
"doc_type":"usermanual2",
"p_code":"133",
"code":"135"
},
{
"desc":"This section describes the mappings between released cluster versions and OS versions.",
"product_code":"cce",
"title":"Node OS",
"uri":"cce_10_0476.html",
"doc_type":"usermanual2",
"p_code":"133",
"code":"136"
},
{
"desc":"At least one cluster has been created.A key pair has been created for identity authentication upon remote node login.The node has at least 2 vCPUs and 4 GiB of memory.To ",
"product_code":"cce",
"title":"Creating a Node",
"uri":"cce_10_0363.html",
"doc_type":"usermanual2",
"p_code":"133",
"code":"137"
},
{
"desc":"In CCE, you can create a node (Creating a Node) or add existing nodes (ECSs) to your cluster for management.While an ECS is being accepted into a cluster, the operating s",
"product_code":"cce",
"title":"Accepting Nodes for Management",
"uri":"cce_10_0198.html",
"doc_type":"usermanual2",
"p_code":"133",
"code":"138"
},
{
"desc":"If you use SSH to log in to a node (an ECS), ensure that the ECS already has an EIP (a public IP address).Only login to a running ECS is allowed.Only the user linux can l",
"product_code":"cce",
"title":"Logging In to a Node",
"uri":"cce_10_0185.html",
"doc_type":"usermanual2",
"p_code":"133",
"code":"139"
},
{
"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":"Management Nodes",
"uri":"cce_10_0672.html",
"doc_type":"usermanual2",
"p_code":"133",
"code":"140"
},
{
"desc":"You can add different labels to nodes and define different attributes for labels. By using these node labels, you can quickly understand the characteristics of each node.",
"product_code":"cce",
"title":"Managing Node Labels",
"uri":"cce_10_0004.html",
"doc_type":"usermanual2",
"p_code":"140",
"code":"141"
},
{
"desc":"Taints enable a node to repel specific pods to prevent these pods from being scheduled to the node.On the CCE console, you can also batch manage nodes' taints.Enter the k",
"product_code":"cce",
"title":"Managing Node Taints",
"uri":"cce_10_0352.html",
"doc_type":"usermanual2",
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"desc":"Kubernetes has removed dockershim from v1.24 and does not support Docker by default. CCE is going to stop the support for Docker. Change the node container engine from Do",
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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 provides callback functions for the lifecycle management of containerized applications. For example, if you want a container to perform a certain operation before sto",
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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":"In actual applications, upgrade is a common operation. A Deployment, StatefulSet, or DaemonSet can easily support application upgrade.You can set different upgrade polici",
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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":"Network",
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"desc":"You can learn about a cluster network from the following two aspects:What is a cluster network like? A cluster consists of multiple nodes, and pods (or containers) are ru",
"product_code":"cce",
"title":"Overview",
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"doc_type":"usermanual2",
"p_code":"214",
"code":"215"
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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 Network Models",
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"desc":"The container network assigns IP addresses to pods in a cluster and provides networking services. In CCE, you can select the following network models for your cluster:Tun",
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"title":"Overview",
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"desc":"The container tunnel network is constructed on but independent of the node network through tunnel encapsulation. This network model uses VXLAN to encapsulate Ethernet pac",
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"desc":"The VPC network uses VPC routing to integrate with the underlying network. This network model is suitable for performance-intensive scenarios. The maximum number of nodes",
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"title":"VPC Network",
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"desc":"Developed by CCE, Cloud Native 2.0 network deeply integrates Elastic Network Interfaces (ENIs) and sub-ENIs of Virtual Private Cloud (VPC). Container IP addresses are all",
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"p_code":"216",
"code":"220"
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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":"Service",
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"desc":"After a pod is created, the following problems may occur if you directly access the pod:The pod can be deleted and recreated at any time by a controller such as a Deploym",
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"title":"Overview",
"uri":"cce_10_0249.html",
"doc_type":"usermanual2",
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"desc":"ClusterIP Services allow workloads in the same cluster to use their cluster-internal domain names to access each other.The cluster-internal domain name format is <Service",
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"title":"ClusterIP",
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"desc":"A Service is exposed on each node's IP address at a static port (NodePort). When you create a NodePort Service, Kubernetes automatically allocates an internal IP address ",
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"title":"NodePort",
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"code":"224"
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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",
"uri":"cce_10_0014.html",
"doc_type":"usermanual2",
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"desc":"LoadBalancer Services can access workloads from the public network through ELB, which is more reliable than EIP-based access. The LoadBalancer access address is in the fo",
"product_code":"cce",
"title":"Creating a LoadBalancer Service",
"uri":"cce_10_0681.html",
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"desc":"You can add annotations to a YAML file to use some CCE advanced functions. This section describes the available annotations when a LoadBalancer service is created.Interco",
"product_code":"cce",
"title":"Using Annotations to Balance Load",
"uri":"cce_10_0385.html",
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"desc":"Only clusters of v1.19.16 or later support HTTP or HTTPS.Scenarios where a load balancer supports HTTP or HTTPSELB TypeApplication scenarioWhether to Support HTTP or HTTP",
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"title":"Configuring an HTTP or HTTPS Service",
"uri":"cce_10_0683.html",
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"p_code":"225",
"code":"228"
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"desc":"LoadBalancer Services allow you to configure timeout, which is the maximum duration for keeping a connection if no request is received from the client. If no request is r",
"product_code":"cce",
"title":"Configuring Timeout for a Service",
"uri":"cce_10_0729.html",
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"p_code":"225",
"code":"229"
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"desc":"The annotation field related to the health check of the LoadBalancer Service is upgraded from Kubernetes.io/elb.health-check-option to Kubernetes.io/elb.health-check-opti",
"product_code":"cce",
"title":"Configuring Health Check on Multiple Service Ports",
"uri":"cce_10_0684.html",
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"code":"230"
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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",
"uri":"cce_10_0685.html",
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"p_code":"225",
"code":"231"
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"desc":"A Kubernetes cluster can publish applications running on a group of pods as Services, which provide unified layer-4 access entries. For a Loadbalancer Service, kube-proxy",
"product_code":"cce",
"title":"Enabling Passthrough Networking for LoadBalancer Services",
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"code":"232"
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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",
"title":"Enabling ICMP Security Group Rules",
"uri":"cce_10_0084.html",
"doc_type":"usermanual2",
"p_code":"225",
"code":"233"
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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",
"title":"Headless Services",
"uri":"cce_10_0398.html",
"doc_type":"usermanual2",
"p_code":"221",
"code":"234"
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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",
"doc_type":"usermanual2",
"p_code":"214",
"code":"235"
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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",
"doc_type":"usermanual2",
"p_code":"235",
"code":"236"
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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",
"doc_type":"usermanual2",
"p_code":"235",
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{
"desc":"An ingress provides network access for backend workloads. Ensure that a workload is available in a cluster. If no workload is available, deploy a workload by referring to",
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"title":"Creating a LoadBalancer Ingress on the Console",
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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",
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"title":"Using kubectl to Create a LoadBalancer Ingress",
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"desc":"By adding annotations to a YAML file, you can implement more advanced ingress functions. This section describes the annotations that can be used when you create a LoadBal",
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"title":"Configuring a LoadBalancer Ingress Using Annotations",
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"desc":"Ingresses support TLS certificates and secure your Services with HTTPS.You can use a TLS secret certificate configured in the cluster and the ELB certificate.If HTTPS is ",
"product_code":"cce",
"title":"Configuring an HTTPS Certificate for a LoadBalancer Ingress",
"uri":"cce_10_0687.html",
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"p_code":"237",
"code":"241"
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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",
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"title":"Configuring SNI for a LoadBalancer Ingress",
"uri":"cce_10_0688.html",
"doc_type":"usermanual2",
"p_code":"237",
"code":"242"
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"desc":"Ingresses can route to multiple backend Services based on different matching policies. The spec field in the YAML file is set as below. You can access www.example.com/foo",
"product_code":"cce",
"title":"LoadBalancer Ingresses to Multiple Services",
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"p_code":"237",
"code":"243"
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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":"237",
"code":"244"
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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":"Interconnecting LoadBalancer Ingresses with HTTPS Backend Services",
"uri":"cce_10_0691.html",
"doc_type":"usermanual2",
"p_code":"237",
"code":"245"
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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":"237",
"code":"246"
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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",
"doc_type":"usermanual2",
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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.",
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"title":"Overview",
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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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"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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"p_code":"247",
"code":"250"
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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 Network Settings",
"uri":"cce_10_0675.html",
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"desc":"Kubernetes allows pods to directly use the host/node network. When a pod is configured with hostNetwork: true, applications running in the pod can directly view the netwo",
"product_code":"cce",
"title":"Host Network",
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"doc_type":"usermanual2",
"p_code":"251",
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"desc":"Bandwidth preemption occurs between different containers deployed on the same node, which may cause service jitter. You can configure QoS rate limiting for inter-pod acce",
"product_code":"cce",
"title":"Configuring QoS for a Pod",
"uri":"cce_10_0382.html",
"doc_type":"usermanual2",
"p_code":"251",
"code":"253"
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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 Tunnel Network Settings",
"uri":"cce_10_0677.html",
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"desc":"Network policies are designed by Kubernetes to restrict pod access. It is equivalent to a firewall at the application layer to enhance network security. The capabilities ",
"product_code":"cce",
"title":"Network Policies",
"uri":"cce_10_0059.html",
"doc_type":"usermanual2",
"p_code":"254",
"code":"255"
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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 Network 2.0 Settings",
"uri":"cce_10_0678.html",
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"product_code":"cce",
"title":"Binding a Custom Security Group to a Workload",
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"desc":"In a CCE Turbo cluster, you can configure subnets and security groups for containers by namespace or workload using NetworkAttachmentDefinition CRDs. If you want to confi",
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"desc":"In Cloud Native Network 2.0, each pod is associated with an ENI, providing a static IP address to the StatefulSet pods (container ENI). This is a common practice in acces",
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"title":"Configuring a Static IP Address for a Pod",
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"desc":"By default, pods with IPv6 dual-stack ENIs can access only the IPv6 private network. To access the public network, configure shared bandwidth for such pods.Only CCE Turbo",
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"title":"Configuring Shared Bandwidth for a Pod with IPv6 Dual-Stack ENIs",
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"p_code":"256",
"code":"260"
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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 Network Settings",
"uri":"cce_10_0679.html",
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"desc":"If the container CIDR block (container subnet in a CCE Turbo cluster) set during CCE cluster creation is insufficient, you can add a container CIDR block for the cluster.",
"product_code":"cce",
"title":"Adding a Container CIDR Block for a Cluster",
"uri":"cce_10_0680.html",
"doc_type":"usermanual2",
"p_code":"261",
"code":"262"
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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",
"product_code":"cce",
"title":"Configuring Intra-VPC Access",
"uri":"cce_10_0399.html",
"doc_type":"usermanual2",
"p_code":"214",
"code":"263"
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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",
"product_code":"cce",
"title":"Accessing the Internet from a Container",
"uri":"cce_10_0400.html",
"doc_type":"usermanual2",
"p_code":"214",
"code":"264"
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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",
"doc_type":"usermanual2",
"p_code":"",
"code":"265"
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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":"265",
"code":"266"
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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":"265",
"code":"267"
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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":"265",
"code":"268"
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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":"268",
"code":"269"
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{
"desc":"CCE allows you to create a PV using an existing EVS disk. After the PV is created, you can create a PVC and bind it to the PV. This mode applies if the underlying storage",
"product_code":"cce",
"title":"Using an Existing EVS Disk Through a Static PV",
"uri":"cce_10_0614.html",
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"p_code":"268",
"code":"270"
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{
"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",
"doc_type":"usermanual2",
"p_code":"268",
"code":"271"
},
{
"desc":"Dynamic mounting is available only for creating a StatefulSet. It is implemented through a volume claim template (volumeClaimTemplates field) and depends on the storage c",
"product_code":"cce",
"title":"Dynamically Mounting an EVS Disk to a StatefulSet",
"uri":"cce_10_0616.html",
"doc_type":"usermanual2",
"p_code":"268",
"code":"272"
},
{
"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",
"doc_type":"usermanual2",
"p_code":"268",
"code":"273"
},
{
"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":"265",
"code":"274"
},
{
"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":"274",
"code":"275"
},
{
"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":"274",
"code":"276"
},
{
"desc":"This section describes how to use storage classes to dynamically create PVs and PVCs and implement data persistence and sharing in workloads.You have created a cluster an",
"product_code":"cce",
"title":"Using an SFS File System Through a Dynamic PV",
"uri":"cce_10_0620.html",
"doc_type":"usermanual2",
"p_code":"274",
"code":"277"
},
{
"desc":"This section describes how to configure SFS volume mount options. You can configure mount options in a PV and bind the PV to a PVC. Alternatively, configure mount options",
"product_code":"cce",
"title":"Configuring SFS Volume Mount Options",
"uri":"cce_10_0337.html",
"doc_type":"usermanual2",
"p_code":"274",
"code":"278"
},
{
"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":"265",
"code":"279"
},
{
"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":"279",
"code":"280"
},
{
"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":"279",
"code":"281"
},
{
"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":"279",
"code":"282"
},
{
"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",
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"desc":"CCE Container Storage (Everest) of version 1.2.8 or later supports custom access keys. In this way, IAM users can use their own custom access keys to mount an OBS volume.",
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"title":"Local Persistent Volumes",
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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",
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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",
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"desc":"You have created a cluster and installed the CSI add-on (Everest) in the cluster.Before creating a cluster using commands, ensure kubectl is used to access the cluster. F",
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"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 the storage c",
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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":"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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"title":"CCE Operations Supported by Cloud Trace Service",
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"desc":"After you enable CTS and the management tracker is created, CTS starts recording operations on cloud resources. CTS stores operation records generated in the last seven d",
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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":"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",
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"title":"Using a Secret",
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"doc_type":"usermanual2",
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"title":"Cluster Secrets",
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"p_code":"316",
"code":"321"
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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":"Auto Scaling",
"uri":"cce_10_0207.html",
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"product_code":"cce",
"title":"Overview",
"uri":"cce_10_0279.html",
"doc_type":"usermanual2",
"p_code":"322",
"code":"323"
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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",
"doc_type":"usermanual2",
"p_code":"322",
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"desc":"HPA is a controller that controls horizontal pod scaling. HPA periodically checks the pod metrics, calculates the number of replicas required to meet the target values co",
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"title":"Workload Scaling Rules",
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"product_code":"cce",
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"doc_type":"usermanual2",
"p_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":"Scaling a Node",
"uri":"cce_10_0291.html",
"doc_type":"usermanual2",
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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":"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",
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"title":"Creating a Node Scaling Policy",
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"doc_type":"usermanual2",
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"uri":"cce_10_0063.html",
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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.When pods ",
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"title":"Using HPA and CA for Auto Scaling of Workloads and Nodes",
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"p_code":"322",
"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":"Add-ons",
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"title":"Overview",
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"p_code":"334",
"code":"335"
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"title":"CoreDNS",
"uri":"cce_10_0129.html",
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"title":"CCE Container Storage (Everest)",
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"desc":"cce-hpa-controller is a CCE-developed add-on, which can be used to flexibly scale in or out Deployments based on metrics such as CPU usage and memory usage.Scaling can be",
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"desc":"NVIDIA GPU is a device management add-on that supports GPUs in containers. To use GPU nodes in a cluster, this add-on must be installed.The driver to be downloaded must b",
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{
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"title":"Volcano Scheduler",
"uri":"cce_10_0193.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":"Helm Chart",
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"title":"Overview",
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"p_code":"345",
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"title":"Deploying an Application Through the Helm v2 Client",
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"doc_type":"usermanual2",
"p_code":"345",
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{
"desc":"The Kubernetes cluster created on CCE has been connected to kubectl. For details, see Using kubectl.To pull a public image when deploying Helm, ensure an EIP has been bou",
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"title":"Converting a Release from Helm v2 to v3",
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"p_code":"345",
"code":"351"
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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":"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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"desc":"Linux allows you to create a core dump file if an application crashes, which contains the data the application had in memory at the time of the crash. You can analyze the",
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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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"uri":"cce_bestpractice_0055.html",
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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",
"uri":"cce_bestpractice_00221.html",
"doc_type":"usermanual2",
"p_code":"426",
"code":"427"
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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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"uri":"cce_bestpractice_10000.html",
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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",
"product_code":"cce",
"title":"Overview",
"uri":"cce_bestpractice_10001.html",
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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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"p_code":"428",
"code":"430"
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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":"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",
"product_code":"cce",
"title":"Common Questions",
"uri":"cce_faq_00006.html",
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"p_code":"431",
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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",
"uri":"cce_faq_00024.html",
"doc_type":"usermanual2",
"p_code":"431",
"code":"433"
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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 Creation",
"uri":"cce_faq_00278.html",
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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",
"product_code":"cce",
"title":"Why Cannot I Create a CCE Cluster?",
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"desc":"Management scale indicates the maximum number of nodes that can be managed by a cluster. If you select 50 nodes, the cluster can manage a maximum of 50 nodes.The number o",
"product_code":"cce",
"title":"Is Management Scale of a Cluster Related to the Number of Master Nodes?",
"uri":"cce_faq_00090.html",
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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?",
"uri":"cce_faq_00154.html",
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"p_code":"434",
"code":"437"
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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",
"uri":"cce_faq_00279.html",
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"desc":"If a cluster is Unavailable, perform the following operations to locate the fault.The issues here are described in order of how likely they are to occur.Check these cause",
"product_code":"cce",
"title":"How Do I Locate the Fault When a Cluster Is Unavailable?",
"uri":"cce_faq_00039.html",
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"code":"439"
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{
"desc":"After a cluster is deleted, the workload on the cluster will also be deleted and cannot be restored. Therefore, exercise caution when deleting a cluster.",
"product_code":"cce",
"title":"How Do I Retrieve Data After a Cluster Is Deleted?",
"uri":"cce_faq_00040.html",
"doc_type":"usermanual2",
"p_code":"438",
"code":"440"
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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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"p_code":"433",
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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",
"product_code":"cce",
"title":"What Can I Do If a Cluster Deletion Fails Due to Residual Resources in the Security Group?",
"uri":"cce_faq_00394.html",
"doc_type":"usermanual2",
"p_code":"441",
"code":"442"
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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?",
"uri":"cce_faq_00413.html",
"doc_type":"usermanual2",
"p_code":"441",
"code":"443"
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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 Upgrade",
"uri":"cce_faq_00401.html",
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"code":"444"
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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.",
"product_code":"cce",
"title":"What Do I Do If a Cluster Add-On Fails to be Upgraded During the CCE Cluster Upgrade?",
"uri":"cce_faq_00402.html",
"doc_type":"usermanual2",
"p_code":"444",
"code":"445"
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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",
"uri":"cce_faq_00021.html",
"doc_type":"usermanual2",
"p_code":"431",
"code":"446"
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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",
"uri":"cce_faq_00280.html",
"doc_type":"usermanual2",
"p_code":"446",
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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",
"doc_type":"usermanual2",
"p_code":"447",
"code":"448"
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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",
"doc_type":"usermanual2",
"p_code":"447",
"code":"449"
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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 Fails to Be Accepted Because It Fails to Be Installed?",
"uri":"cce_faq_00286.html",
"doc_type":"usermanual2",
"p_code":"447",
"code":"450"
},
{
"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",
"uri":"cce_faq_00281.html",
"doc_type":"usermanual2",
"p_code":"446",
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"desc":"If the cluster status is available but some nodes in the cluster are unavailable, perform the following operations to rectify the fault:Kubernetes provides the heartbeat ",
"product_code":"cce",
"title":"What Should I Do If a Cluster Is Available But Some Nodes Are Unavailable?",
"uri":"cce_faq_00120.html",
"doc_type":"usermanual2",
"p_code":"451",
"code":"452"
},
{
"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":"451",
"code":"453"
},
{
"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",
"doc_type":"usermanual2",
"p_code":"451",
"code":"454"
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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":"451",
"code":"455"
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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":"451",
"code":"456"
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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":"451",
"code":"457"
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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",
"doc_type":"usermanual2",
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"code":"458"
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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":"458",
"code":"459"
},
{
"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?",
"uri":"cce_faq_00189.html",
"doc_type":"usermanual2",
"p_code":"458",
"code":"460"
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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",
"p_code":"446",
"code":"461"
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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?",
"uri":"cce_faq_00409.html",
"doc_type":"usermanual2",
"p_code":"461",
"code":"462"
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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",
"p_code":"431",
"code":"463"
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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",
"p_code":"463",
"code":"464"
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{
"desc":"Locate the fault based on the event of the failure to scale out a node pool, as shown in Table 1.If a node pool scale-out fails, the event contains Ecs.0314. This error c",
"product_code":"cce",
"title":"What Should I Do If a Node Pool Scale-Out Fails?",
"uri":"cce_faq_00432.html",
"doc_type":"usermanual2",
"p_code":"463",
"code":"465"
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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":"431",
"code":"466"
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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 Abnormalities",
"uri":"cce_faq_00029.html",
"doc_type":"usermanual2",
"p_code":"466",
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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 check whether there is an abnormal pod in the workload, pe",
"product_code":"cce",
"title":"How Do I Use Events to Fix Abnormal Workloads?",
"uri":"cce_faq_00134.html",
"doc_type":"usermanual2",
"p_code":"467",
"code":"468"
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{
"desc":"If the pod is in the Pending state and the event contains pod scheduling failure information, locate the cause based on the event information. For details about how to vi",
"product_code":"cce",
"title":"What Should I Do If Pod Scheduling Fails?",
"uri":"cce_faq_00098.html",
"doc_type":"usermanual2",
"p_code":"467",
"code":"469"
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{
"desc":"When a workload enters the state of \"Pod not ready: Back-off pulling image \"xxxxx\", a Kubernetes event of PodsFailed to pull image or Failed to re-pull image will be repo",
"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":"467",
"code":"470"
},
{
"desc":"On the details page of a workload, if an event is displayed indicating that the container fails to be started, perform the following steps to locate the fault:Rectify the",
"product_code":"cce",
"title":"What Should I Do If Container Startup Fails?",
"uri":"cce_faq_00018.html",
"doc_type":"usermanual2",
"p_code":"467",
"code":"471"
},
{
"desc":"When a node is abnormal, Kubernetes will evict pods on the node to ensure workload availability.In Kubernetes, both kube-controller-manager and kubelet can evict pods.Evi",
"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":"467",
"code":"472"
},
{
"desc":"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 of the fault.Check Item 1: Whether EVS Volum",
"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":"467",
"code":"473"
},
{
"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":"467",
"code":"474"
},
{
"desc":"When a node is in the Unavailable state, CCE migrates container pods on the node and sets the pods running on the node to the Terminating state.After the node is restored",
"product_code":"cce",
"title":"What Should I Do If Pods in the Terminating State Cannot Be Deleted?",
"uri":"cce_faq_00210.html",
"doc_type":"usermanual2",
"p_code":"467",
"code":"475"
},
{
"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":"467",
"code":"476"
},
{
"desc":"The following exceptions occur when services are deployed on the GPU nodes in a CCE cluster:The GPU memory of containers cannot be queried.Seven GPU services are deployed",
"product_code":"cce",
"title":"What Should I Do If an Error Occurs When Deploying a Service on the GPU Node?",
"uri":"cce_faq_00109.html",
"doc_type":"usermanual2",
"p_code":"467",
"code":"477"
},
{
"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",
"p_code":"466",
"code":"478"
},
{
"desc":"Service processing takes a long time. Pre-stop processing makes sure that during an upgrade, a pod is killed only when the service in the pod has been processed.",
"product_code":"cce",
"title":"When Is Pre-stop Processing Used?",
"uri":"cce_faq_00159.html",
"doc_type":"usermanual2",
"p_code":"478",
"code":"479"
},
{
"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",
"doc_type":"usermanual2",
"p_code":"478",
"code":"480"
},
{
"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",
"p_code":"478",
"code":"481"
},
{
"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",
"p_code":"478",
"code":"482"
},
{
"desc":"CCE is a fully managed Kubernetes service and is fully compatible with Kubernetes APIs and kubectl.In Kubernetes, the spec of a pod contains a restartPolicy field. The va",
"product_code":"cce",
"title":"What Is the Retry Mechanism When CCE Fails to Start a Pod?",
"uri":"cce_faq_00004.html",
"doc_type":"usermanual2",
"p_code":"478",
"code":"483"
},
{
"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",
"p_code":"466",
"code":"484"
},
{
"desc":"The kube-scheduler component in Kubernetes is responsible pod scheduling. For each newly created pod or other unscheduled pods, kube-scheduler selects an optimal node fro",
"product_code":"cce",
"title":"How Do I Evenly Distribute Multiple Pods to Each Node?",
"uri":"cce_faq_00260.html",
"doc_type":"usermanual2",
"p_code":"484",
"code":"485"
},
{
"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",
"doc_type":"usermanual2",
"p_code":"484",
"code":"486"
},
{
"desc":"The kube-scheduler component in Kubernetes is responsible pod scheduling. For each newly created pod or other unscheduled pods, kube-scheduler selects an optimal node fro",
"product_code":"cce",
"title":"Why Are Pods Not Evenly Distributed to Nodes?",
"uri":"cce_faq_00314.html",
"doc_type":"usermanual2",
"p_code":"484",
"code":"487"
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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",
"doc_type":"usermanual2",
"p_code":"484",
"code":"488"
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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",
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"desc":"If a scheduled task is stopped during running, before its restart, the system calculates the difference between the last time the task was successfully executed and the c",
"product_code":"cce",
"title":"What Should I Do If a Scheduled Task Cannot Be Restarted After Being Stopped for a Period of Time?",
"uri":"cce_faq_00213.html",
"doc_type":"usermanual2",
"p_code":"489",
"code":"490"
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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":"489",
"code":"491"
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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":"489",
"code":"492"
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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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"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",
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{
"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?",
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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":"Networking",
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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",
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"desc":"A Virtual Private Cloud (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 bu",
"product_code":"cce",
"title":"What Is the Relationship Between Clusters, VPCs, and Subnets?",
"uri":"cce_faq_00266.html",
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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 in a Cluster?",
"uri":"cce_faq_00265.html",
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"p_code":"497",
"code":"499"
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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 65536 IPv6 addresses",
"product_code":"cce",
"title":"How Do I Set an IPv6 Service CIDR Block?",
"uri":"cce_faq_00406.html",
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"p_code":"497",
"code":"500"
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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 Fault",
"uri":"cce_faq_00205.html",
"doc_type":"usermanual2",
"p_code":"496",
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{
"desc":"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 of the fault.Check Item 1: Container and Con",
"product_code":"cce",
"title":"How Do I Locate a Workload Networking Fault?",
"uri":"cce_faq_00202.html",
"doc_type":"usermanual2",
"p_code":"501",
"code":"502"
},
{
"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":"501",
"code":"503"
},
{
"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":"501",
"code":"504"
},
{
"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":"501",
"code":"505"
},
{
"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":"496",
"code":"506"
},
{
"desc":"If access to port 22 of a cluster node is not required, you can define a security group rule that disables access to port 22.Do not bind an EIP to a cluster node unless n",
"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":"506",
"code":"507"
},
{
"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":"506",
"code":"508"
},
{
"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":"431",
"code":"509"
},
{
"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":"509",
"code":"510"
},
{
"desc":"No. A data disk is mandatory.A data disk dedicated for kubelet and the container engine will be attached to a new node. By default, CCE uses Logical Volume Manager (LVM)",
"product_code":"cce",
"title":"Can I Add a Node Without a Data Disk?",
"uri":"cce_faq_00089.html",
"doc_type":"usermanual2",
"p_code":"509",
"code":"511"
},
{
"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":"509",
"code":"512"
},
{
"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":"509",
"code":"513"
},
{
"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":"509",
"code":"514"
},
{
"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":"431",
"code":"515"
},
{
"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":"515",
"code":"516"
},
{
"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":"431",
"code":"517"
},
{
"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":"Why Does Add-on Installation Fail and Prompt \"The release name is already exist\"?",
"uri":"cce_faq_00322.html",
"doc_type":"usermanual2",
"p_code":"517",
"code":"518"
},
{
"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":"517",
"code":"519"
},
{
"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":"431",
"code":"520"
},
{
"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":"520",
"code":"521"
},
{
"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":"520",
"code":"522"
},
{
"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":"520",
"code":"523"
},
{
"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":"520",
"code":"524"
},
{
"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":"520",
"code":"525"
},
{
"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":"431",
"code":"526"
},
{
"desc":"CoreDNS QPS is positively correlated with the CPU usage. If the QPS is high, adjust the the coredns instance specifications based on the QPS.If the add-on performance rea",
"product_code":"cce",
"title":"What Should I Do If Domain Name Resolution Fails?",
"uri":"cce_faq_00197.html",
"doc_type":"usermanual2",
"p_code":"526",
"code":"527"
},
{
"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":"526",
"code":"528"
},
{
"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":"526",
"code":"529"
},
{
"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":"526",
"code":"530"
},
{
"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":"431",
"code":"531"
},
{
"desc":"SoftWare Repository for Container (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":"531",
"code":"532"
},
{
"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":"431",
"code":"533"
},
{
"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":"533",
"code":"534"
},
{
"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":"533",
"code":"535"
},
{
"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":"533",
"code":"536"
},
{
"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":"Reference",
"uri":"cce_faq_00292.html",
"doc_type":"usermanual2",
"p_code":"431",
"code":"537"
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{
"desc":"The default storage size of a container is 10 GB. If a large volume of data is generated in the container, expand the capacity using the method described in this topic.Re",
"product_code":"cce",
"title":"How Do I Expand the Storage Capacity of a Container?",
"uri":"cce_faq_00224.html",
"doc_type":"usermanual2",
"p_code":"537",
"code":"538"
},
{
"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":"537",
"code":"539"
},
{
"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":"540"
},
{
"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":"540",
"code":"541"
},
{
"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":"540",
"code":"542"
},
{
"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":"540",
"code":"543"
},
{
"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":"540",
"code":"544"
},
{
"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":"545"
}
]
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