Modifying an Application Component Instance

Function

This API is used to modify an application component instance.

URI

PUT /v2/{project_id}/cas/applications/{application_id}/components/{component_id}/instances/{instance_id}

**Table 1** Path parameters
Parameter	Type	Mandatory	Description
project_id	String	Yes	Tenant's project ID.
application_id	String	Yes	Application ID.
component_id	String	Yes	Component ID.
instance_id	String	Yes	Component instance ID.

Request

**Table 2** Request parameters
Parameter	Type	Mandatory	Description
version	String	Yes	Application component version that meets version semantics. Example: 1.0.1.
flavor_id	String	No	Resource specifications, which can be obtained by using the API in Obtaining All Supported Flavors of Application Resources. If you need to customize resource specifications, the format is as follows: CUSTOM-xxG:xxC-xxC:xxGi-xxGi. Where: xxG: storage capacity allocated to a component instance. It is a reserved field. You can set it to a fixed number. xxC-xxC: the maximum and minimum number of CPU cores allocated to a component instance. xxGi-xxGi: the maximum and minimum memory allocated to a component instance. For example, CUSTOM-10G:0.5C-0.25C:1.6Gi-0.8Gi indicates that the maximum number of CPU cores allocated to a component instance is 0.5, the minimum number of CPU cores is 0.25, the maximum memory is 1.6 Gi, and the minimum memory is 0.8 Gi.
artifacts	Map<String, Object>	No	Artifact. key indicates the component name. In the Docker container scenario, key indicates the container name. See Table 3.
configuration	Map<String, Object>	No	Configuration parameters, such as environment variables, deployment configurations, and O&M monitoring. By default, this parameter is left blank. See Table 3 in Creating an Application Component Instance.
description	String	No	Description. The value can contain up to 128 characters.
external_accesses	Array of objects	No	Access mode. See Table 4.
refer_resources	Array of objects	No	Deployed resources. See Table 5.

**Table 3** artifact parameters
Parameter	Type	Mandatory	Description
storage	String	Yes	Storage mode. Value: swr or obs.
type	String	Yes	Type. Value: package (VM-based deployment) or image (container-based deployment).
url	String	Yes	Software package or image address. For a component deployed on a VM, this parameter is the software package address. For a component deployed based on a container, this parameter is the image address or component name:v${index}. The latter indicates that the component source code or the image automatically built using the software package will be used.
auth	String	Yes	Authentication mode. Value: iam or none. Default value: iam.
version	String	No	Version number.
properties	Map<String,String>	No	Property information.

**Table 4** external_accesses parameters
Parameter	Type	Mandatory	Description
protocol	String	No	Protocol. Value: http or https.
address	String	No	Access address. Example: www.example.com.
forward_port	Integer	No	Port for listening to an application component process.

**Table 5** refer_resources parameters
Parameter	Type	Mandatory	Description
id	String	Yes	Resource ID.
type	String	Yes	Resource type. Example: dcs.
refer_alias	String	No	Application alias. This parameter is available only when type is set to dcs. Value: "distributed_session", "distributed_cache", or "distributed_session, distributed_cache" (default).
parameters	Map<String,Object>	No	Reference resource parameter.

Response

**Table 6** Response parameters
Parameter	Type	Description
job_id	String	Job ID, which is used to query information about the created job.

Example

Example request

{
	"description": "",
	"artifacts": {
		"test-micro": {
			"storage": "swr",
			"type": "image",
			"url": "swr.roma-dev-1.roma.development.com/ns1/examples:v2",
			"auth": "iam",
			"version": "1.0.0",
			"properties": {}
		}
	},
	"refer_resources": [
		{
			"id": "523498f1-36c4-11eb-ae36-0255ac1000c2",
			"type": "cce",
			"parameters": {
				"namespace": "default"
			}
		},
		{
			"id": "default",
			"type": "cse"
		}
	],
	"version": "1.0.2"
}

Example response

{
    "job_id": "JOB66761060-f209-407c-a093-4df6f531b9dc"
}

Status Code

**Table 7** Status codes
Status Code	Description
200	OK
400	Bad Request
404	Not Found
500	Internal Server Error

Error Code

Error code must be in the format of SVCSTG.00100.[Error_ID]. Example: SVCSTG.00100400. See Error Codes of Application Management APIs.

Parent topic: Instance

Previous topic: Querying the Operations Performed on a Component Instance

Next topic: Deleting an Application Component Instance

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