Function

This API is used to rebuild an ECS.

You can use the original image or another image to rebuild an ECS. This API supports different OSs.

This API is native from the community for defcore tests.

If you are required to reinstall or change an ECS OS, ECS APIs are recommended. For details, see "Reinstalling an ECS OS (Using an Image with Cloud-Init Installed)" and "Changing an OS (Using an Image with Cloud-Init Installed)".

Constraints

ECSs in the error state cannot be rebuilt.
The password cannot be set during the rebuilding.

URI

POST /v2.1/{project_id}/servers/{server_id}/action

POST /v2/{project_id}/servers/{server_id}/action

Table 1 describes the parameters in the URI.

**Table 1** Parameter description
Parameter	Mandatory	Description
project_id	Yes	Specifies the project ID.
server_id	Yes	Specifies the ECS ID.

Request

Table 2 describes the request parameters.

**Table 2** Request parameter
Parameter	Mandatory	Type	Description
rebuild	Yes	Object	Rebuilds an ECS. For details, see Table 3.

**Table 3** **rebuild** parameters
Parameter	Mandatory	Type	Description
name	No	String	Specifies the name of the rebuilt ECS. The value contains 1 to 254 characters.
metadata	No	Object	Specifies the metadata of the rebuilt ECS.
imageRef	Yes	String	Specifies the image ID or URL.
adminPass	No	String	Specifies the password for logging in to the rebuilt ECS. This parameter does not take effect.
OS-DCF:diskConfig	No	String	Not supported
preserve_ephemeral	No	Boolean	Specifies whether to retain the temporary disk. This parameter is not supported.
key_name	No	String	Specifies the key pair name. If the value is null, the existing key pair is left blank. This parameter is supported in microversion 2.54 and later.
user_data	No	String	Specifies the user data to be injected during the ECS creation. This is an extended attribute. Text and text files can be injected. NOTE: The content of user_data must be encoded with base64. The maximum size of the content to be injected (before encoding) is 32 KB. For more information about the user data to be injected, see "Injecting User Data into ECSs" in Elastic Cloud Server User Guide. Examples Before base64 encoding: Linux #! /bin/bash echo user_test >> /home/user.txt Windows rem cmd echo 111 > c:\aaa.txt After base64 encoding: Linux IyEgL2Jpbi9iYXNoDQplY2hvIHVzZXJfdGVzdCAmZ3Q7Jmd0OyAvaG9tZS91c2VyLnR4dA== Windows cmVtIGNtZAplY2hvIDExMSA+IGM6XGFhYS50eHQ=

Response

Table 4 describes the response parameters.

**Table 4** Response parameters
Parameter	Type	Description
status	String	Specifies the ECS status. Values: ACTIVE REBOOT HARD_REBOOT REBUILD MIGRATING BUILD SHUTOFF RESIZE VERIFY_RESIZE ERROR DELETED For details, see ECS Statuses.
updated	String	Specifies the time when the ECS was updated last time.
hostId	String	Specifies the ID of the host on which the ECS is deployed.
addresses	Array of objects	Specifies the network attribute of the ECS.
links	Array of objects	Describes the ECS.
image	Object	Specifies the ECS image information. For the ECS that boots from a volume, the value is left blank.
flavor	Object	Specifies the ECS flavor.
id	String	Specifies the ECS ID in UUID format.
user_id	String	Specifies the user UUID of the ECS.
name	String	Specifies the ECS name.
tenant_id	String	Specifies the UUID of the tenant who owns the ECS.
OS-DCF:diskConfig	String	Specifies the diskConfig type. It is an extended attributed. MANUAL: The image space cannot be expanded. AUTO: The image space on the system disk will be automatically expanded to keep the same as that set in the flavor.
accessIPv4	String	Discarded
accessIPv6	String	Discarded
progress	String	Specifies the ECS creation progress.
metadata	Object	Specifies the ECS metadata.

Example Request

POST https://{endpoint}/v2/{project_id}/servers/{server_id}/action
POST https://{endpoint}/v2.1/{project_id}/servers/{server_id}/action

{
    "rebuild" : {
        "imageRef" : "3ed456f5-3d8f-4383-a6c9-312032afcd1a",
        "name" : "rebuildName",
       "metadata" : {
            "rebuild" : "rebuild vm"
        }
    }
}

Example Response

{
    "server": {
        "tenant_id": "7459f9935ed2422eb9800fea1d4d9378",
        "image": {
            "links": [
                {
                    "rel": "bookmark",
                    "href": "https://xxx/7459f9935ed2422eb9800fea1d4d9378/images/3ed456f5-3d8f-4383-a6c9-312032afcd1a"
                }
            ],
            "id": "3ed456f5-3d8f-4383-a6c9-312032afcd1a"
        },
        "accessIPv4": "",
        "addresses": {
            "443dd9e3-c165-4764-ad92-b17fcf12a3eb": [
                {
                    "addr": "192.168.0.119",
                    "version": 4
                }
            ]
        },
        "metadata": {
            "name": "rebuildName"
        },
        "accessIPv6": "",
        "created": "2016-09-19T01:13:26Z",
        "hostId": "fd16ebd9c2629e8595875cc1e1400fa67f392431d7937fcc9cf37671",
        "adminPass": "qGVjnEjY3ZoY",
        "flavor": {
            "links": [
                {
                    "rel": "bookmark",
                    "href": "https://xxx/7459f9935ed2422eb9800fea1d4d9378/flavors/normal1"
                }
            ],
            "id": "normal1"
        },
        "OS-DCF:diskConfig": "MANUAL",
        "user_id": "ed2965d80d394be0b41e56f50ac650ca",
        "name": "rebuildName",
        "progress": 0,
        "links": [
            {
                "rel": "self",
                "href": "https://xxx/v2/7459f9935ed2422eb9800fea1d4d9378/servers/ea681a24-9b24-4f49-98ef-8e1f73acf19e"
            },
            {
                "rel": "bookmark",
                "href": "https://xxx/7459f9935ed2422eb9800fea1d4d9378/servers/ea681a24-9b24-4f49-98ef-8e1f73acf19e"
            }
        ],
        "id": "ea681a24-9b24-4f49-98ef-8e1f73acf19e",
        "updated": "2016-09-19T07:22:05Z",
        "status": "REBUILD"
    }
}

Returned Values

See Returned Values for General Requests.

Rebuilding an ECS