Creating an Image

Function

This API is used to create a private image. The following methods are supported:

Create a system or data disk image from an ECS.
Create a system disk image from an external image file uploaded to an OBS bucket.
Create a system disk image from a data disk.

The API is an asynchronous one. If it is successfully called, the cloud service system receives the request. However, you need to use the asynchronous job query API to query the image creation status. For details, see Querying the Status of an Asynchronous Job.

Constraints (Creating a System Disk Image Using a Data Disk)

Before using a data disk to create a system disk image, ensure that an OS has been installed on the data disk and has been optimized. For details about the optimization, see "Optimizing a Windows Private Image" and "Optimizing a Linux Private Image" in the Image Management Service User Guide.
The system cannot verify that an OS has been installed on the data disk. Therefore, ensure that the value of os_version is valid when creating a system disk image from the data disk. For details, see Values of Related Parameters.

URI

POST /v2/cloudimages/action

Request

Parameters for creating a system or data disk image from an ECS

Parameter	Mandatory	Type	Description
name	Yes	String	Specifies the name of the system disk image. For detailed description, see Image Attributes.
description	No	String	Provides supplementary information about the image. For details, see Image Attributes. The value contains a maximum of 1024 characters and consists of only letters and digits. Carriage returns and angle brackets (< >) are not allowed. This parameter is left blank by default.
instance_id	Yes	String	Specifies the ID of the ECS used to create the image. To obtain the ECS ID, perform the following operations: Log in to management console. Under Computing, click Elastic Cloud Server. In the ECS list, click the name of the ECS and view its ID.
data_images	No	Array of objects	Specifies the data disk information to be converted. This parameter is mandatory when the data disk of an ECS is used to create a private data disk image. For details, see Table 1. If the ECS data disk is not used to create a data disk image, the parameter is empty by default. NOTE: When you create a data disk image using a data disk, if other parameters (such as name, description, and tags) in this table have values, the system uses the value of data_images. You cannot specify instance_id.
tags	No	Array of strings	Lists the image tags. This parameter is left blank by default. Use either tags or image_tags.
image_tags	No	Array of objects	Lists the image tags. This parameter is left blank by default. Use either tags or image_tags.
max_ram	No	Integer	Specifies the maximum memory of the image in the unit of MB.
min_ram	No	Integer	Specifies the minimum memory of the image in the unit of MB. The default value is 0, indicating that the memory is not restricted.

**Table 1** Data structure description of the data_images field
Parameter	Mandatory	Type	Description
name	Yes	String	Specifies the name of a data disk image.
volume_id	Yes	String	Specifies the data disk ID.
description	No	String	Specifies the data disk description.
tags	No	Array of strings	Specifies the data disk image tag.

Parameters for creating an image using an image file uploaded to the OBS bucket

Parameter	Mandatory	Type	Description
name	Yes	String	Specifies the image name. For detailed description, see Image Attributes.
description	No	String	Provides supplementary information about the image. For detailed description, see Image Attributes. The value contains a maximum of 1024 characters and consists of only letters and digits. Carriage returns and angle brackets (< >) are not allowed. This parameter is left blank by default.
os_type	No	String	Specifies the OS type. The value can be Linux, Windows, or Other.
os_version	No	String	Specifies the OS version. This parameter is valid if an external image file uploaded to the OBS bucket is used to create an image. For its value, see Values of Related Parameters. NOTE: If the uploaded file is in ISO format, this parameter is mandatory. This parameter is mandatory when the value of is_quick_import is true, that is, a system disk image is imported using the quick import method.
image_url	Yes	String	Specifies the URL of the external image file in the OBS bucket. This parameter is mandatory if an external image file in the OBS bucket is used to create an image. The format is OBS bucket name:Image file name. To obtain an OBS bucket name: Log in to the management console and choose Storage > Object Storage Service. All OBS buckets are displayed in the list. Filter the OBS buckets by region and locate the target bucket in the current region. To obtain an OBS image file name: Log in to the management console and choose Storage > Object Storage Service. All OBS buckets are displayed in the list. Filter the OBS buckets by region and locate the target bucket in the current region. Click the name of the target bucket to go to the bucket details page. In the navigation pane on the left, choose Objects to display objects in the OBS bucket and then locate the external image file used to create an image. NOTE: The storage class of the OBS bucket must be Standard.
min_disk	Yes	Integer	Specifies the minimum size of the system disk in the unit of GB. This parameter is mandatory if an external image file in the OBS bucket is used to create an image. The value ranges from 40 GB to 255 GB.
is_config	No	Boolean	Specifies whether automatic configuration is enabled. The value can be true or false. If automatic configuration is required, set the value to true. Otherwise, set the value to false The default value is false. For details about automatic configuration, see Creating a Linux System Disk Image from an External Image File > Registering an External Image File as a Private Image (Linux) in Image Management Service User Guide.
cmk_id	No	String	Specifies a custom key used for encrypting an image. For its value, see the Key Management Service User Guide.
tags	No	Array of strings	Lists the image tags. This parameter is left blank by default. Use either tags or image_tags.
image_tags	No	Array of objects	Lists the image tags. This parameter is left blank by default. Use either tags or image_tags.
max_ram	No	Integer	Specifies the maximum memory of the image in the unit of MB.
min_ram	No	Integer	Specifies the minimum memory required by the image in the unit of MB. The default value is 0, indicating that the memory is not restricted.
data_images	No	Array of objects	Specifies the data disk information to be imported. An external image file can contain a maximum of three data disks. In this case, one system disk and three data disks will be created. For details, see Table 2. NOTE: If a data disk image file is used to create a data disk image, the OS type of the data disk image must be the same as that of the system disk image. If other parameters (such as name, description, and tags) in Table 2 are set, the system uses the values in data_images.
is_quick_import	No	Boolean	Specifies whether to use the quick import method to import a system disk image. If yes, set the value to true. If no, set the value to false. For details about the restrictions on quick import of image files, see Importing an Image File Quickly.

**Table 2** Data structure description of the images field
Parameter	Mandatory	Type	Description
name	No	String	Specifies the image name. For more details, see Image Attributes.
description	No	String	Provides supplementary information about the image. This parameter is left blank by default. The value contains a maximum of 1024 characters and consists of only letters and digits. Carriage returns and angle brackets (< >) are not allowed. For more details, see Image Attributes.
image_url	Yes	String	Specifies the URL of the external image file in the OBS bucket. The format is OBS bucket name:Image file name. To obtain an OBS bucket name: Log in to the management console and choose Storage > Object Storage Service. All OBS buckets are displayed in the list. Filter the OBS buckets by region and locate the target bucket in the current region. To obtain an OBS image file name: Log in to the management console and choose Storage > Object Storage Service. All OBS buckets are displayed in the list. Filter the OBS buckets by region and locate the target bucket in the current region. Click the name of the target bucket to go to the bucket details page. In the navigation pane on the left, choose Objects to display objects in the OBS bucket and then locate the external image file used to create an image. NOTE: The storage class of the OBS bucket must be Standard.
min_disk	Yes	Integer	Specifies the minimum size of the data disk. Unit: GB Value range: 1–2048
is_quick_import	No	Boolean	Specifies whether an image file is imported quickly to create a data disk image. If yes, set the value to true. If no, set the value to false. For details about the restrictions on quick import of image files, see Importing an Image File Quickly.
tags	No	Array of strings	Lists the image tags. This parameter is left blank by default. For detailed parameter descriptions, see Image Tag Data Formats. Use either tags or image_tags.
image_tags	No	Array of objects	Lists the image tags. This parameter is left blank by default. For detailed parameter descriptions, see Image Tag Data Formats. Use either tags or image_tags.

Parameters for creating a system disk image using a data disk

Parameter	Mandatory	Type	Description
name	Yes	String	Specifies the name of the system disk image. For more details, see Image Attributes.
volume_id	Yes	String	Specifies the data disk ID.
os_version	Yes	String	Specifies the OS version. Set the parameter value based on Values of Related Parameters. Otherwise, the created system disk image may be unavailable. During the creation of a system disk image, if the OS can be detected from the data disk, the OS version in the data disk is used. In this case, the os_version value is invalid. If the OS can be detected from the data disk, the os_version value is used.
type	No	Sting	Specifies the image type. The value can be ECS, BMS, FusionCompute, or Ironic. ECS and FusionCompute: indicates an ECS image. BMS and Ironic: indicates a BMS image. The default value is ECS.
description	No	String	Specifies the image description. This parameter is left blank by default. For details, see Image Attributes. The image description must meet the following requirements: Contains only letters and digits. Cannot contain carriage returns and angle brackets (< >). Cannot exceed 1024 characters.
min_ram	No	Integer	Specifies the minimum memory size (MB) required for running the image. The parameter value depends on the ECS specifications. The default value is 0.
max_ram	No	Integer	Specifies the maximum memory size (MB) required for running the image. The parameter value depends on the ECS specifications. The default value is 0.
tags	No	Array of strings	Specifies tags of the image. This parameter is left blank by default. Use either tags or image_tags.
image_tags	No	Array of objects	Specifies tags of the image. This parameter is left blank by default. Use either tags or image_tags.

Example Request

Creating a system disk image with parameter tags using an ECS (ID: 877a2cda-ba63-4e1e-b95f-e67e48b6129a)

POST https://{Endpoint}/v2/cloudimages/action
{
    "name": "ims_test",
       "description": "Create a system disk image from an ECS",
    "instance_id": "877a2cda-ba63-4e1e-b95f-e67e48b6129a",
    "tags": [
        "aaa.111",
        "bbb.333",
        "ccc.444"
         ]
}

Creating a data disk image with parameter tags using a data disk (ID: c5dfbd0c-bf0a-4798-a453-61dc6b54aa30) of an ECS

      
           POST https://{Endpoint}/v2/cloudimages/action
{
       "data_images": [{"name": "ims_data_image_test",
       "description": "Create a data disk image from the data disk of an ECS",
       "volume_id": "c5dfbd0c-bf0a-4798-a453-61dc6b54aa30",
       "tags": [
                  "aaa.111",
                  "bbb.333",
                  "ccc.444"
              ]
       }]
}

Creating an image with parameter tags using a file in an OBS bucket (file address in the bucket: ims-image:centos70.qcow2)

      
           POST https://{Endpoint}/v2/cloudimages/action
{
      "name": "ims_test_file",
  "description": "Create an image from a file in an OBS bucket",
      "image_url": "ims-image:centos70.qcow2",
      "os_version": "CentOS 7.0 64bit",
      "min_disk": 40,
      "tags": [  
            "aaa.111",  
            "bbb.333",  
            "ccc.444"  
      ]     
}

Creating a system disk image with parameter image_tags using an ECS (ID: 877a2cda-ba63-4e1e-b95f-e67e48b6129a)

POST https://{Endpoint}/v2/cloudimages/action
{
    "name": "ims_test",
    "description": "Create a system disk image from an ECS",
    "instance_id": "877a2cda-ba63-4e1e-b95f-e67e48b6129a",
    "image_tags": [
{
            "key": "key2",
            "value": "value2"
        },
{
            "key": "key1",
            "value": "value1"
}
         ]
}

Creating a data disk image with parameter image_tags using a data disk (ID: c5dfbd0c-bf0a-4798-a453-61dc6b54aa30) of an ECS

      
           POST /v2/cloudimages/action
{
       "data_images": [{"name": "ims_data_image_test",
       "description": "Create a data disk image from the data disk of an ECS",
       "volume_id": "c5dfbd0c-bf0a-4798-a453-61dc6b54aa30",
       "image_tags": [{"key":"key2","value":"value2"},{"key":"key1","value":"value1"}]
       }]
}

Creating an image with parameter image_tags using a file in an OBS bucket (file address in the bucket: ims-image:centos70.qcow2)

      
           POST https://{Endpoint}/v2/cloudimages/action
{
       "name": "ims_test_file",
       "description": "Create an image from a file in an OBS bucket",
       "image_url": "ims-image:centos70.qcow2",
       "os_version": "CentOS 7.0 64bit",
       "min_disk": 40,
       "image_tags": [{"key":"key2","value":"value2"},{"key":"key1","value":"value1"}]    
}

Creating a system disk image with parameter tags using a data disk (ID: 877a2cda-ba63-4e1e-b95f-e67e48b6129a)

      
           POST https://{Endpoint}/v2/cloudimages/action
{
        "name": "ims_test",
        "description": "Create a system disk image from a data disk",
        "volume_id": "877a2cda-ba63-4e1e-b95f-e67e48b6129a",
        "type": "ECS",
        "os_version": "CentOS 7.0 64bit",
        "tags": [
                "aaa.111",
                "bbb.333",
                "ccc.444" 
           ]
 }

Creating a system disk image with parameter image_tags using a data disk (ID: 877a2cda-ba63-4e1e-b95f-e67e48b6129a)

      
           POST https://{Endpoint}/v2/cloudimages/action
{
        "name": "ims_test",
        "description": "Create a system disk image from a data disk",
        "volume_id": "877a2cda-ba63-4e1e-b95f-e67e48b6129a",
        "type": "ECS",
        "os_version": "CentOS 7.0 64bit",
        "image_tags": [{"key":"key2","value":"value2"},{"key":"key1","value":"value1"}] 
 }

Response

Response parameters

Parameter	Type	Description
job_id	String	Specifies the asynchronous job ID. For details, see Querying the Status of an Asynchronous Job.

Parameter

Type

Description

job_id

String

Specifies the asynchronous job ID.

For details, see Querying the Status of an Asynchronous Job.

Example response

STATUS CODE 200

      
           {
    "job_id": "8a12fc664fb4daa3014fb4e581380005"
}

Returned Values

Normal
200

Abnormal

Returned Value	Description
400 Bad Request	Request error. For details about the returned error code, see Error Codes.
401 Unauthorized	Authentication failed.
403 Forbidden	You do not have the rights to perform the operation.
404 Not Found	The requested resource was not found.
500 Internal Server Error	Internal service error.
503 Service Unavailable	The service is unavailable.