InstanceGroup Related Interfaces

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CCE CCE

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  • Common Tools
    • Command Line Scenario Examples
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  • Product Announcement
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      • Impact Statement on runc Security Issue (CVE-2024-21626)
  • Service Level Agreement (SLA)
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  • Typical Practices
    • Pod Anomaly Troubleshooting
    • Adding CGroup V2 Node
    • Common Linux System Configuration Parameters Description
    • Encrypting etcd Data Using KMS
    • Configuring Container Network Parameters Using CNI
    • CCE - Public Network Access Practice
    • Practice of using private images in CCE clusters
    • Unified Access for Virtual Machines and Container Services via CCE Ingress
    • User Guide for Custom CNI Plugins
    • CCE Cluster Network Description and Planning
    • Cross-Cloud Application Migration to Baidu CCE Using Velero
    • CCE Resource Recommender User Documentation
    • Continuous Deployment with Jenkins in CCE Cluster
    • CCE Best Practice-Guestbook Setup
    • CCE Best Practice-Container Network Mode Selection
    • CCE Usage Checklist
    • VPC-ENI Mode Cluster Public Network Access Practice
    • CCE Container Runtime Selection
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      • Elastic and Fault-Tolerant Training Using CCE AITraining Operator
      • Deploy the TensorFlow Serving inference service
      • Best Practice for GPU Virtualization with Optimal Isolation
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      • Using NetworkPolicy in CCE Clusters
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        • Container Network QoS Management
        • VPC-ENI Specified Subnet IP Allocation (Container Network v2)
        • Cluster Pod Subnet Topology Distribution (Container Network v2)
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        • Container network accesses the public network via NAT gateway
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        • Common Error Code Table for CCE Container Network
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      • Set Workload Auto-Scaling
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      • Adding Alternative Models
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Table of contents on this page
  • Create node group
  • Retrieve node group details
  • Delete node group
  • Modify auto scaling configurations of nodes in the node group
  • Modify replicas of nodes in the node group
  • Retrieve the node group list of a cluster
  • Create task for scale-up node group
  • Create task for scale-down node group
  • Add existing nodes

InstanceGroup Related Interfaces

Updated at：2025-10-27

Create node group

Description

Create node group

Request structure

Plain Text 
1POST /v2/cluster/{clusterID}/instancegroup HTTP/1.1
2Host: cce.bj.baidubce.com
3Authorization: authorization string

Request headers

There are no special headers required beyond the common headers.

Request parameters

Parameter name Types Required or not Parameter location Description
clusterID String Yes URL parameter Cluster ID
instanceGroupName String Yes Request Body parameters Node group name, not null
clusterRole String No Request Body parameters Role of node in the cluster, now only supporting node-type phase group, defaulting to node
shrinkPolicy String No Request Body parameters Node group shrinking rules, options [Priority, Uniform], defaulting to Priority. Priority shrinks nodes with lower priority first while Uniform evenly scales down across subnets
updatePolicy String No Request Body parameters Node group update rules, options [Rolling, Concurrency], defaulting to Concurrency. Concurrency represents concurrent update while Rolling represents rolling update. This parameter is not yet activated.
cleanPolicy String No Request Body parameters Node cleaning rules, options [Remain, Delete], defaulting to Delete.
instanceTemplate [InstanceTemplate](CCE/API_V2 Reference/Appendix.md#InstanceTemplate) Yes Request Body parameters Configuration of nodes in the node group
replicas Integer Yes Request Body parameters Replicas required for nodes in the node group. The range of values is a set of natural numbers.
clusterAutoscalerSpec [ClusterAutoscalerSpec](CCE/API_V2 Reference/Appendix.md#ClusterAutoscalerSpec) No Request Body parameters Cluster Autoscaler configuration

Response headers

No special headers are required beyond the standard ones.

Response parameters

Parameter name Types Required or not Description
instanceGroupID String Yes Node group ID
requestID String Yes Request ID. This ID is provided for issue localization.

Request example

Plain Text 
1POST /v2/cluster/cce-f7zeyx1u/instancegroup  HTTP/1.1
2Host: cce.bj.baidubce.com
3Authorization: bce-auth-v1/f81d3b34e48048fbb2634dc7882d7e21/2019-03-11T04:17:29Z/3600/host/74c506f68c65e26c633bfa104c863fffac5190fdec1ec24b7c03eb5d67d2e1de
4{
5	"instanceGroupName": "sdk-testcase",
6	"selector": null,
7	"cleanPolicy": "Delete",
8	"instanceTemplate": {
9		"instanceName": "",
10		"runtimeType": "docker",
11		"clusterRole": "node",
12		"existedOption": {},
13		"machineType": "BCC",
14		"instanceType": "N3",
15		"vpcConfig": {
16			"vpcID": "vpc-pi9fghaxcpnf",
17			"vpcSubnetID": "sbn-ww1xf6a5fi88",
18			"securityGroupID": "g-4mnvpnrfscm1",
19			"availableZone": "zoneA"
20		},
21		"instanceResource": {
22			"cpu": 1,
23			"mem": 4,
24			"rootDiskSize": 40
25		},
26		"imageID": "305eeb25-a693-4cc0-832a-57bccf855771",
27		"instanceOS": {
28			"imageType": "System"
29		},
30		"instanceChargingType": "Postpaid",
31		"instancePreChargingOption": {},
32		"deployCustomConfig": {
33			"dockerConfig": {},
34			"preUserScript": "ls",
35			"postUserScript": "ls"
36		}
37	},
38	"replicas": 3
39}

Response example

Plain Text 
1HTTP/1.1 200 OK
2X-Bce-Request-Id: aef503ab-66e2-4b7f-9044-e922389ed03f
3Date: Thu, 16 Mar 2020 06:29:48 GMT
4Content-Type: application/json;charset=UTF-8
5{
6	"requestID": "aef503ab-66e2-4b7f-9044-e922389ed03f",
7	"instanceGroupID": "cce-ig-dvej1d3y"
8}

Retrieve node group details

Description

Retrieve node group details

Request structure

Plain Text 
1GET /v2/cluster/{clusterID}/instancegroup/{instanceGroupID} HTTP/1.1
2Host: cce.bj.baidubce.com
3Authorization: authorization string

Request headers

There are no special headers required beyond the common headers.

Request parameters

Parameter name Types Required or not Parameter location Description
clusterID String Yes URL parameter Cluster ID
instanceGroupID String Yes URL parameter Node group ID

Response headers

No special headers are required beyond the standard ones.

Response parameters

Parameter name Types Required or not Description
requestID String Yes Request ID. This ID is provided for issue localization.
instanceGroup [InstanceGroup](CCE/API_V2 Reference/Appendix.md#InstanceGroup) Yes Queried node group details

Request example

Plain Text 
1GET /v2/cluster/cce-47bqnhmj/instancegroup/cce-ig-796lmt7a  HTTP/1.1
2Host: cce.bj.baidubce.com
3Authorization: bce-auth-v1/f81d3b34e48048fbb2634dc7882d7e21/2019-03-11T04:17:29Z/3600/host/74c506f68c65e26c633bfa104c863fffac5190fdec1ec24b7c03eb5d67d2e1de

Response example

Plain Text 
1HTTP/1.1 200 OK
2X-Bce-Request-Id: 9ccdfbcf-f989-49e6-9701-6996dee804b1
3Date: Thu, 16 Mar 2020 06:29:48 GMT
4Content-Type: application/json;charset=UTF-8
5{
6	"requestID": "9ccdfbcf-f989-49e6-9701-6996dee804b1",
7	"instanceGroup": {
8		"spec": {
9			"cceInstanceGroupID": "cce-ig-dvej1d3y",
10			"instanceGroupName": "sdk-testcase",
11			"clusterID": "cce-z6qjgcq7",
12			"clusterRole": "node",
13			"shrinkPolicy": "Priority",
14			"updatePolicy": "Concurrency",
15			"cleanPolicy": "Delete",
16			"instanceTemplate": {
17				"instanceName": "",
18				"runtimeType": "docker",
19				"runtimeVersion": "18.9.2",
20				"clusterID": "cce-z6qjgcq7",
21				"clusterRole": "node",
22				"instanceGroupID": "cce-ig-dvej1d3y",
23				"instanceGroupName": "sdk-testcase",
24				"existedOption": {},
25				"machineType": "BCC",
26				"instanceType": "N3",
27				"bbcOption": {},
28				"vpcConfig": {
29					"vpcID": "vpc-pi9fghaxcpnf",
30					"vpcSubnetID": "sbn-ww1xf6a5fi88",
31					"securityGroupID": "g-4mnvpnrfscm1",
32					"vpcSubnetType": "BCC",
33					"vpcSubnetCIDR": "192.168.16.0/24",
34					"availableZone": "zoneA"
35				},
36				"instanceResource": {
37					"cpu": 1,
38					"mem": 4,
39					"rootDiskType": "hp1",
40					"rootDiskSize": 40
41				},
42				"imageID": "m-4Umtt2i5",
43				"instanceOS": {
44					"imageType": "System",
45					"imageName": "centos-8u0-x86_64-20200601205040",
46					"osType": "linux",
47					"osName": "CentOS",
48					"osVersion": "8.0",
49					"osArch": "x86_64 (64bit)",
50					"osBuild": "2020060100"
51				},
52				"eipOption": {},
53				"instanceChargingType": "Postpaid",
54				"instancePreChargingOption": {},
55				"deleteOption": {
56					"deleteResource": true,
57					"deleteCDSSnapshot": true
58				},
59				"deployCustomConfig": {
60					"dockerConfig": {},
61					"preUserScript": "bHM=",
62					"postUserScript": "bHM="
63				},
64				"labels": {
65					"cluster-id": "cce-z6qjgcq7",
66					"cluster-role": "node",
67					"instance-group-id": "cce-ig-dvej1d3y"
68				},
69				"cceInstancePriority": 5
70			},
71			"replicas": 3,
72			"clusterAutoscalerSpec": {
73				"enabled": false,
74				"minReplicas": 0,
75				"maxReplicas": 0,
76				"scalingGroupPriority": 0
77			}
78		},
79		"status": {
80			"readyReplicas": 3,
81			"pause": {
82				"paused": false,
83				"reason": ""
84			}
85		},
86		"createdAt": "2020-09-27T06:34:51Z"
87	}
88}

Delete node group

Description

Delete node group

Request structure

Plain Text 
1DELETE /v2/cluster/{clusterID}/instancegroup/{instanceGroupID} HTTP/1.1
2Host: cce.bj.baidubce.com
3Authorization: authorization string

Request headers

There are no special headers required beyond the common headers.

Request parameters

Parameter name Types Required or not Parameter location Description
clusterID String Yes URL parameter Cluster ID
instanceGroupID String Yes URL parameter Node group ID
deleteInstances Boolean No Query Whether to delete nodes in the node group, defaulting to false
releaseAllResource Boolean No Query Whether to remove nodes in the node group out of the cluster, and release virtual machine resources, postpaid public IPs, and cloud disk server, defaulting to false

Response headers

No special headers are required beyond the standard ones.

Response parameters

Parameter name Types Required or not Description
requestID String Yes Request ID. This ID is provided for issue localization.

Request example

Plain Text 
1DELETE /v2/cluster/cce-f7zeyx1u/instancegroup/cce-ig-dvej1d3y?deleteInstances=true  HTTP/1.1
2Host: cce.bj.baidubce.com
3Authorization: bce-auth-v1/f81d3b34e48048fbb2634dc7882d7e21/2019-03-11T04:17:29Z/3600/host/74c506f68c65e26c633bfa104c863fffac5190fdec1ec24b7c03eb5d67d2e1de

Response example

Plain Text 
1HTTP/1.1 200 OK
2X-Bce-Request-Id: b1a9e426-c0ca-4668-a1d8-624c5000d365
3Date: Thu, 16 Mar 2020 06:29:48 GMT
4Content-Type: application/json;charset=UTF-8
5{
6	"requestID": "b1a9e426-c0ca-4668-a1d8-624c5000d365"
7}

Modify auto scaling configurations of nodes in the node group

Description

Modify auto scaling configurations of nodes in the node group

Request structure

Plain Text 
1PUT /v2/cluster/{clusterID}/instancegroup/{instanceGroupID}/autoscaler HTTP/1.1
2Host: cce.bj.baidubce.com
3Authorization: authorization string

Request headers

There are no special headers required beyond the common headers.

Request parameters

Parameter name Types Required or not Parameter location Description
clusterID String Yes URL parameter Cluster ID
instanceGroupID String Yes URL parameter Node group ID
enabled Boolean Yes Request Body parameters Whether to enable Autoscaler
minReplicas Integer Yes Request Body parameters Minimum number of replicas. The range of values is a set of natural numbers.
maxReplicas Integer Yes Request Body parameters Maximum number of replicas. The range of values is a set of natural numbers, but must be greater than minReplicas.
scalingGroupPriority Integer Yes Request Body parameters Scaling group priority. The range of values is a set of natural numbers.

Response headers

No special headers are required beyond the standard ones.

Response parameters

Parameter name Types Required or not Description
requestID String Yes Request ID. This ID is provided for issue localization.

Request example

Plain Text 
1PUT /v2/cluster/cce-f7zeyx1u/instancegroup/cce-ig-dvej1d3y/autoscaler  HTTP/1.1
2Host: cce.bj.baidubce.com
3Authorization: bce-auth-v1/f81d3b34e48048fbb2634dc7882d7e21/2019-03-11T04:17:29Z/3600/host/74c506f68c65e26c633bfa104c863fffac5190fdec1ec24b7c03eb5d67d2e1de
4{
5	"enabled": true,
6	"minReplicas": 2,
7	"maxReplicas": 5,
8	"scalingGroupPriority": 1
9}

Response example

Plain Text 
1HTTP/1.1 200 OK
2X-Bce-Request-Id: 27f91a44-7257-48e7-a8d8-849f45a32da4
3Date: Thu, 16 Mar 2020 06:29:48 GMT
4Content-Type: application/json;charset=UTF-8
5{
6	"requestID": "27f91a44-7257-48e7-a8d8-849f45a32da4"
7}

Modify replicas of nodes in the node group

Description

Modify replicas of nodes in the node group

Request structure

Plain Text 
1PUT /v2/cluster/{clusterID}/instancegroup/{instanceGroupID}/replicas HTTP/1.1
2Host: cce.bj.baidubce.com
3Authorization: authorization string

Request headers

There are no special headers required beyond the common headers.

Request parameters

Parameter name Types Required or not Parameter location Description
clusterID String Yes URL parameter Cluster ID
instanceGroupID String Yes URL parameter Node group ID
replicas Integer Yes Request Body parameters Replicas for desired nodes in the node group. The range of values is a set of natural numbers.
instanceIDs List No Request Body parameters Specify the node ID collection to be added or deleted in priority
deleteInstance Boolean No Request Body parameters Whether to delete the nodes removed during node group shrinking, defaulting to false. This value takes precedence over node group CleanPolicy. This configuration is used for scaled-down nodes.
deleteOption [DeleteOption](CCE/API_V2 Reference/Appendix.md#DeleteOption) No Request Body parameters Modify the specified node deletion options.

Response headers

No special headers are required beyond the standard ones.

Response parameters

Parameter name Types Required or not Description
requestID String Yes Request ID. This ID is provided for issue localization.

Request example

Plain Text 
1PUT /v2/cluster/cce-f7zeyx1u/instancegroup/cce-ig-dvej1d3y/replicas  HTTP/1.1
2Host: cce.bj.baidubce.com
3Authorization: bce-auth-v1/f81d3b34e48048fbb2634dc7882d7e21/2019-03-11T04:17:29Z/3600/host/74c506f68c65e26c633bfa104c863fffac5190fdec1ec24b7c03eb5d67d2e1de
4{
5	"replicas": 1,
6	"instanceIDs": null,
7	"deleteInstance": true,
8	"deleteOption": {
9		"deleteResource": true,
10		"deleteCDSSnapshot": true
11	}
12}

Response example

Plain Text 
1HTTP/1.1 200 OK
2X-Bce-Request-Id: 6f593304-6787-45ea-8e0f-426ee331cc8b
3Date: Thu, 16 Mar 2020 06:29:48 GMT
4Content-Type: application/json;charset=UTF-8
5{
6	"requestID": "6f593304-6787-45ea-8e0f-426ee331cc8b"
7}

Retrieve the node group list of a cluster

Description

Retrieve the node group list of a cluster

Request structure

Plain Text 
1GET /v2/cluster/{clusterID}/instancegroups HTTP/1.1
2Host: cce.bj.baidubce.com
3Authorization: authorization string

Request headers

There are no special headers required beyond the common headers.

Request parameters

Parameter name Types Required or not Parameter location Description
clusterID String Yes URL parameter Cluster ID
pageNo Integer No Query Query page number. All node groups in the cluster are returned when pageNo or pageSize is 0.
pageSize Integer No Query Query result entries per page. All node groups in the cluster are returned when pageNo or pageSize is 0.

Response headers

No special headers are required beyond the standard ones.

Response parameters

Parameter name Types Required or not Description
page [ListInstanceGroupPage](CCE/API_V2 Reference/Appendix.md#ListInstanceGroupPage) Yes Node group query result page
requestID String Yes Request ID. This ID is provided for issue localization.

Request example

Plain Text 
1GET /v2/cluster/cce-f7zeyx1u/instancegroups?pageNo=1&pageSize=10  HTTP/1.1
2Host: cce.bj.baidubce.com
3Authorization: bce-auth-v1/f81d3b34e48048fbb2634dc7882d7e21/2019-03-11T04:17:29Z/3600/host/74c506f68c65e26c633bfa104c863fffac5190fdec1ec24b7c03eb5d67d2e1de

Response example

Plain Text 
1HTTP/1.1 200 OK
2X-Bce-Request-Id: 1a65cc49-f3da-4d66-b994-7d7cd6797af5
3Date: Thu, 16 Mar 2020 06:29:48 GMT
4Content-Type: application/json;charset=UTF-8
5{
6	"requestID": "1a65cc49-f3da-4d66-b994-7d7cd6797af5",
7	"page": {
8		"pageNo": 0,
9		"pageSize": 0,
10		"totalCount": 1,
11		"list": [
12			{
13				"spec": {
14					"cceInstanceGroupID": "cce-ig-dvej1d3y",
15					"instanceGroupName": "sdk-testcase",
16					"clusterID": "cce-z6qjgcq7",
17					"clusterRole": "node",
18					"shrinkPolicy": "Priority",
19					"updatePolicy": "Concurrency",
20					"cleanPolicy": "Delete",
21					"instanceTemplate": {
22						"instanceName": "",
23						"runtimeType": "docker",
24						"runtimeVersion": "18.9.2",
25						"clusterID": "cce-z6qjgcq7",
26						"clusterRole": "node",
27						"instanceGroupID": "cce-ig-dvej1d3y",
28						"instanceGroupName": "sdk-testcase",
29						"existedOption": {},
30						"machineType": "BCC",
31						"instanceType": "N3",
32						"bbcOption": {},
33						"vpcConfig": {
34							"vpcID": "vpc-pi9fghaxcpnf",
35							"vpcSubnetID": "sbn-ww1xf6a5fi88",
36							"securityGroupID": "g-4mnvpnrfscm1",
37							"vpcSubnetType": "BCC",
38							"vpcSubnetCIDR": "192.168.16.0/24",
39							"availableZone": "zoneA"
40						},
41						"instanceResource": {
42							"cpu": 1,
43							"mem": 4,
44							"rootDiskType": "hp1",
45							"rootDiskSize": 40
46						},
47						"imageID": "m-4Umtt2i5",
48						"instanceOS": {
49							"imageType": "System",
50							"imageName": "centos-8u0-x86_64-20200601205040",
51							"osType": "linux",
52							"osName": "CentOS",
53							"osVersion": "8.0",
54							"osArch": "x86_64 (64bit)",
55							"osBuild": "2020060100"
56						},
57						"eipOption": {},
58						"instanceChargingType": "Postpaid",
59						"instancePreChargingOption": {},
60						"deleteOption": {
61							"deleteResource": true,
62							"deleteCDSSnapshot": true
63						},
64						"deployCustomConfig": {
65							"dockerConfig": {},
66							"preUserScript": "bHM=",
67							"postUserScript": "bHM="
68						},
69						"labels": {
70							"cluster-id": "cce-z6qjgcq7",
71							"cluster-role": "node",
72							"instance-group-id": "cce-ig-dvej1d3y"
73						},
74						"cceInstancePriority": 5
75					},
76					"replicas": 3,
77					"clusterAutoscalerSpec": {
78						"enabled": false,
79						"minReplicas": 0,
80						"maxReplicas": 0,
81						"scalingGroupPriority": 0
82					}
83				},
84				"status": {
85					"readyReplicas": 3,
86					"pause": {
87						"paused": false,
88						"reason": ""
89					}
90				},
91				"createdAt": "2020-09-27T06:34:51Z"
92			}
93		]
94	}
95}

Create task for scale-up node group

Description

Create a task to scale up a node group.

Request structure

Plain Text 
1PUT /v2/cluster/{clusterID}/instancegroup/{instanceGroupID}/scaleup HTTP/1.1
2Host: cce.bj.baidubce.com
3Authorization: authorization string

Request headers

There are no special headers required beyond the common headers.

Request parameters

Parameter name Types Required or not Parameter location Description
clusterID String Yes URL parameter Cluster ID
instanceGroupID String Yes URL parameter Node group ID
upToReplicas Integer Yes (either upToReplicas or upReplicas filled) Query Target replicas of scale-up node group. If selected, this parameter must be greater than the current replica count of node group.
upReplicas Integer Yes (either upToReplicas or upReplicas filled) Query Scale-up replicas of node group. If selected, this parameter must be greater than 0

Response headers

No special headers are required beyond the standard ones.

Response parameters

Parameter name Types Description
taskID String Node group scale-up task ID
requestID String Request ID. This ID is provided for issue localization.

Request example

Plain Text 
1PUT /api/cce/service/v2/cluster/cce-jvyvb9al/instancegroup/cce-ig-glw5jb7x/scaleup?upToReplicas=4 HTTP/1.1
2Host: cce.bj.baidubce.com
3Content-Type: application/json
4Authorization: authorization string

Response example

Plain Text 
1{
2    "requestID": "deb8d7b9-37b2-4fc2-b956-0db512c37b5e",
3    "taskID": "task-cce-ig-glw5jb7x-scaleup-zibi4ixw"
4}

Create task for scale-down node group

Description

Create a task to scale down a node group.

Request structure

Plain Text 
1PUT /v2/cluster/{clusterID}/instancegroup/{instanceGroupID}/scaledown HTTP/1.1
2Host: cce.bj.baidubce.com
3Authorization: authorization string

Request parameters

Parameter name Types Required or not Parameter location Description
clusterID String Yes URL parameter Cluster ID
instanceGroupID String Yes URL parameter Node group ID
instancesToBeRemoved List Yes Request Body parameters List of node IDs planned for removal from node group during scale-down
cleanPolicy String Yes Request Body parameters Whether to retain the instance corresponding to the node when scaling down a node group, options [Remain, Delete]
deleteOption [DeleteOption](CCE/API_V2 Reference/Appendix.md#DeleteOption) No Request Body parameters Adjust the options for deleting specific nodes. This parameter must be set when the cleanPolicy is configured as Delete.

Response headers

No special headers are required beyond the standard ones.

Response parameters

Parameter name Types Description
taskID String Node group scale-up task ID
requestID String Request ID. This ID is provided for issue localization.

Request example

Plain Text 
1PUT /api/cce/service/v2/cluster/cce-91xd2ojb/instancegroup/cce-ig-l68ajx08/scaledown?= HTTP/1.1
2Host: cce.bj.baidubce.com
3Content-Type: application/json
4Authorization: authorization string
5{
6    "instancesToBeRemoved": [
7        "cce-91xd2ojb-6y5feg8v",
8        "cce-91xd2ojb-6y5feg8v"
9    ],
10    "cleanPolicy":"Delete",
11    "deleteOption":{
12        "moveOut":true,
13        "deleteResource":false,
14        "deleteCDSSnapshot":false
15    }
16}

Response example

Plain Text 
1{
2    "requestID": "deb8d7b9-37b2-4fc2-b956-0db512c37b5e",
3    "taskID": "task-cce-ig-l68ajx08-scaledown-zibi4ixw"
4}

Add existing nodes

Description

Include existing nodes in the node group.

Response headers

No special headers are required beyond the standard ones.

Request structure

Plain Text 
1PUT  /v2/cluster/[clusterID]/instancegroup/[instanceGroupID]/attachInstances HTTP/1.1
2Host: cce.bd.baidubce.com
3Authorization: authorization string

Request headers

There are no special headers required beyond the common headers.

Request parameters

Parameter name Types Required or not Parameter location Description
clusterID string Yes URL parameter Cluster ID is used to uniquely identify a specific cluster.
instanceGroupID string Yes URL parameter Node group ID is used to uniquely identify a specific node group.
inCluster bool Yes Request Body parameters Indicates whether the node belongs to the cluster or not.
useInstanceGroupConfig bool Yes Request Body parameters Applies to nodes outside the cluster. Set this to true to utilize the node group configuration.
existedInstances List<[InstanceSet](CCE/API_V2 Reference/Appendix.md#InstanceSet)> No Request Body parameters Set up the details of nodes located outside the cluster.
existedInstancesInCluster List<[ExistedInstanceInCluster](CCE/API_V2 Reference/Appendix.md#ExistedInstanceInCluster)> No Request Body parameters Set up the details of nodes located inside the cluster.

Response example

Plain Text 
1{
2    "requestID": "deb8d7b9-37b2-4fc2-b956-0db512c37b5e",
3    "taskID": "task-cce-ig-l68ajx08-scaledown-zibi4ixw"
4}

Request example Add nodes out of the cluster

Plain Text 
1PUT /api/cce/service/v2/cluster/cce-qfdlj5g9/instancegroup/cce-ig-iw245bl0/attachInstances HTTP/1.1
2Host: cce.bd.baidubce.com
3Authorization: authorization string
4{
5    "inCluster": false,
6    "useInstanceGroupConfig": true,
7    "existedInstances": [
8        {
9            "instanceSpec": {
10                "sshKeyID": "k-FH1hIJ0h",
11                "existed": true,
12                "existedOption": {
13                    "existedInstanceID": "i-oCnp4BG5",
14                    "rebuild": true
15                },
16                "machineType": "BCC",
17                "clusterRole": "node",
18                "instanceOS": {
19                    "imageType": "System"
20                },
21                "imageID": "m-PljC8e8k",
22                "instanceResource": {
23                    "cdsList": []
24                }
25            }
26        }
27    ]
28}

Add nodes in the cluster

Plain Text 
1PUT /api/cce/service/v2/cluster/cce-qfdlj5g9/instancegroup/cce-ig-iw245bl0/attachInstances HTTP/1.1
2Host: cce.bd.baidubce.com
3Authorization: authorization string
4{
5    "inCluster": true,
6    "existedInstancesInCluster": [
7        {
8            "existedInstanceID": "i-oCnp4BG5"
9        }
10    ]
11}

Response example

Plain Text 
1{
2    "requestID": "deb8d7b9-37b2-4fc2-b956-0db512c37b5e",
3    "taskID": "task-cce-ig-l68ajx08-scaledown-zibi4ixw"
4}

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Appendix