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.
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 Asynchronous Job Query.
You cannot export public images (such as Windows, SUSE, Red Hat, Oracle Linux, and Ubuntu) or private images created using these public images.
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
Specifies the image description. 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
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.
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
Specifies the image description. 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
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 1 GB to 1024 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.
tags
No
Array of strings
Specifies tags of the image. The value 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.
type
No
String
Specifies the image type.
The value can be ECS, BMS, FusionCompute, IsoImage, or Ironic. The default value is ECS.
ECS and FusionCompute: indicate an ECS image.
BMS and Ironic: indicate a BMS image.
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
Specifies the image description. The value 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
Specifies tags of the image. The value 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
Specifies tags of the image. The value is left blank by default.
For detailed parameter descriptions, see Image Tag Data Formats.
Use either tags or image_tags.
Example requests
Request for creating a system disk image with parameter tags using an ECS
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" ] }
Request for creating a data disk image with parameter tags using the data disk 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" ] }] }
Request for creating an image with parameter tags using an external image file uploaded to the OBS bucket
POST https://{Endpoint}/v2/cloudimages/action{ "name": "ims_test_file", "description": "Create an image from a file in the OBS bucket", "image_url": "ims-image:centos70.qcow2", "os_version": "CentOS 7.0 64bit", "min_disk": 40, "tags": [ "aaa.111", "bbb.333", "ccc.444" ] }
Request for creating a system disk image with parameter image_tags using an ECS
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" } ] }
Request for creating a data disk image with parameter image_tags using the data disk 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"}] }] }
Request for creating an image with parameter image_tags using an external image file uploaded to the OBS bucket
POST https://{Endpoint}/v2/cloudimages/action{ "name": "ims_test_file", "description": "Create an image from a file in the 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"}] }
Request for creating a system disk image with parameter image_tags using a data disk
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 Asynchronous Job Query.
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.