Function

This API is used to obtain the IDs of target images the current cluster can be upgraded to. The upgrade types are as follows:

During a same-version upgrade, kernel patches are updated for a cluster. The cluster is upgraded to the latest image of the current version to fix known issues or optimize performance. For example, if the current cluster version is 7.10.2(7.10.2_24.3.3_0102), upon a same-version upgrade, the cluster will be upgraded to the latest image 7.10.2(7.10.2_24.3.4_0109) of version 7.10.2. (The version numbers used here are examples only.)
Cross-version upgrade: Upgrade the cluster version. The cluster will be upgraded to the latest image of the target version to enhance functions or incorporate versions. For example, if the current cluster version is 7.6.2(7.6.2_24.3.3_1224), upon a cross-version upgrade, the cluster will be upgraded to the latest image 7.10.2(7.10.2_24.3.4_0109) of version 7.10.2. (The version numbers used here are examples only.)
Cross-engine upgrade: Change an Elasticsearch cluster to an OpenSearch cluster. Cross-engine upgrade means to upgrade an Elasticsearch cluster to the latest image of the target OpenSearch version. For example, if the Elasticsearch cluster version is 7.10.2(7.10.2_24.3.3_0102), upon a cross-engine upgrade, the Elasticsearch cluster will be upgraded to the latest image 1.3.6(1.3.6_24.3.4_0109) of OpenSearch 1.3.6. (The version numbers used here are examples only.) This feature is not supported currently.

Calling Method

For details, see Calling APIs.

URI

GET /v1.0/{project_id}/clusters/{cluster_id}/target/{upgrade_type}/images

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition: Project ID. For details about how to obtain the project ID and name, see Obtaining the Project ID and Name. Constraints: N/A Value range: Project ID of the account. Default value: N/A
cluster_id	Yes	String	Definition: ID of the cluster to be upgraded. For details about how to obtain the cluster ID, see Obtaining the Cluster ID. Constraints: N/A Value range: Cluster ID. Default value: N/A
upgrade_type	Yes	String	Parameter description: Upgrade type. Constraints: N/A Options: same: same-version upgrade. cross: cross-version upgrade. cross-engine: cross-engine upgrade. Default value: N/A

**Table 2** Query Parameters
Parameter	Mandatory	Type	Description
offset	No	Integer	Definition: Start value of the query. The default value is 0. Constraints: N/A Value range: 0-1000 Default value: 0
limit	No	Integer	Definition: Number of images to be queried. The default value is 10, indicating that 10 images are queried at a time. Constraints: N/A Value range: 1-1000 Default value: 10

Request Parameters

None

Response Parameters

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
needUploadUpgradePlugin	Boolean	Definition: Whether to upload the plug-in of the target version. Value range: N/A
imageInfoList	Array of GetTargetImageIdDetail objects	Definition: Image details. Value range: N/A
totalSize	Integer	Definition: Number of target images. Value range: N/A

**Table 4** GetTargetImageIdDetail
Parameter	Type	Description
id	String	Definition: ID of an image that can be upgraded. Value range: N/A
displayName	String	Definition: Name of an image that can be upgraded. Value range: N/A
imageDesc	String	Definition: Image description. Value range: N/A
datastoreType	String	Definition: Cluster engine type. Value range: elasticsearch: Cloud Search Service (CSS) provides distributed search capabilities, log analytics, reporting, and semantic search based on open-source Elasticsearch. logstash: Provides functions such as data ingestion, transformation, cleaning, and parsing based on open-source Logstash. opensearch: Provides distributed search, log analytics, reporting, and semantic search based on open-source OpenSearch. It is the future version of CSS's Elasticsearch clusters.
datastoreVersion	String	Definition: Image engine version. Value range: N/A
priority	Integer	Definition: Priority of the target image. A larger value indicates a higher priority. Value range: N/A

Example Requests

Obtain the target image for a cross-version upgrade of the cluster.

GET https://{Endpoint}/v1.0/{project_id}/clusters/ea244205-d641-45d9-9dcb-ab2236bcd07e/target/cross/images

Example Responses

Status code: 200

Request succeeded.

{
  "needUploadUpgradePlugin" : false,
  "imageInfoList" : [ ],
  "totalSize" : 0
}

Status Codes

Status Code	Description
200	Request succeeded.
400	Invalid request. The client should not repeat the request without modifications.
403	Request rejected. The server has received the request and understood it, but the server refuses to respond to it. The client should not repeat the request without modifications.

Status Code

Description

200

Request succeeded.

400

Invalid request.

The client should not repeat the request without modifications.

403

Request rejected.

The server has received the request and understood it, but the server refuses to respond to it. The client should not repeat the request without modifications.

Error Codes

See Error Codes.

Obtaining the ID of the Target Image to Upgrade To