You can call this operation to create a custom image. The created custom image can be used to create ECS instances (RunInstances) and replace system disks (ReplaceSystemDisk).

Description

When you call this operation, take note of the following items:

  • The created custom image can be used only when it is in the Available (Available) state.
  • If the response contains {"OperationLocks": {"LockReason" : "security"}} when you query information of an instance, the instance is locked for security reasons and all operations are prohibited on it.

You can use one of the following methods to call the CreateImage operation to create a custom image. The request parameters have the following priorities: InstanceId > DiskDeviceMapping > SnapshotId. If your request contains two or more parameters, the custom image is created based on the parameter with a higher priority by default.

  • Method 1: Create a custom image from an instance. You only need to specify the instance ID (InstanceId). The instance must be in the Running (Running) or Stopped (Stopped) state. After the CreateImage operation is called, a new snapshot is created for each disk of the instance.
  • Method 2: Create a custom image from the system disk snapshot of an ECS instance. You only need to specify the ID of the system disk snapshot (SnapshotId). The specified snapshot cannot be created on or before July 15, 2013.
  • Method 3: Create a custom image from multiple disk snapshots. You must specify the data mapping between the disks corresponding to the snapshots (DiskDeviceMapping parameters).

When you use Method 3 to create a custom image, take note of the following items:

  • You can specify only one system disk snapshot. The device name of the system disk must be /dev/xvda.
  • You can specify multiple data disk snapshots. The device names of the data disks are unique and ascend from /dev/xvdb to /dev/xvdz.
  • SnapshotId may not be specified. In this case, an empty data disk with a specific size is created.
  • The specified snapshot cannot be created on or before July 15, 2013.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes CreateImage

The operation that you want to perform. Set the value to CreateImage.
RegionId String Yes cn-hangzhou

The region ID of the image. You can call the DescribeRegions operation to query the most recent region list.

DiskDeviceMapping.N.SnapshotId String No s-bp17441ohwkdca0****

The ID of snapshot N that is used to create the custom image.
DiskDeviceMapping.N.Size Integer No 2000

The size of disk N in the custom image. Unit: GiB. The valid values and default value of DiskDeviceMapping.N.Size depend on DiskDeviceMapping.N.SnapshotId.

  • If corresponding snapshot IDs are not specified in the DiskDeviceMapping.N.SnapshotId value, the following valid values and default value are available for DiskDeviceMapping.N.Size:
    • For basic disks, the valid values are 5 to 2000, and the default value is 5.
    • For other disk categories, the valid values are 20 to 32768, and the default value is 20.
  • If a corresponding snapshot ID is specified in the DiskDeviceMapping.N.SnapshotId value, the value of DiskDeviceMapping.N.Size must be greater than or equal to the size of the specified snapshot. The default value of DiskDeviceMapping.N.Size is the size of the specified snapshot.
DiskDeviceMapping.N.Device String No /dev/vdb

The device name of disk N in the custom image. Valid values:

  • For disk categories other than basic disks, such as standard SSDs, ultra disks, and enhanced SSDs, the valid values are /dev/vda to /dev/vdz.
  • For basic disks, the valid values are /dev/xvda to /dev/xvdz.
DiskDeviceMapping.N.DiskType String No system

The type of disk N in the custom image. You can set this parameter to create the system disk of the custom image from a data disk snapshot. If you do not set this parameter, the disk type is determined by the corresponding snapshot. Valid values:

  • system: system disk
  • data: data disk
SnapshotId String No s-bp17441ohwkdca0****

The ID of the snapshot that is used to create the custom image.
InstanceId String No i-bp1g6zv0ce8oghu7****

The ID of the instance.
ImageName String No TestCentOS

The name of the image. The name must be 2 to 128 characters in length and can contain letters, digits, colons (:), underscores (_), and hyphens (-). It must start with a letter and cannot start with http:// or https://.

This parameter is empty by default.

Description String No ImageTestDescription

The description of the image. The description must be 2 to 256 characters in length and cannot start with http:// or https://.

This parameter is empty by default.

Platform String No CentOS

The distribution of the operating system for the system disk in the custom image. When you specify a data disk snapshot to create the system disk of the custom image, you must use the Platform parameter to determine the distribution of the operating system for the system disk. Default value: Others Linux. Valid values:

  • CentOS
  • Ubuntu
  • SUSE
  • OpenSUSE
  • RedHat
  • Debian
  • CoreOS
  • Aliyun
  • Windows Server 2012
  • Windows 7
  • Customized Linux
  • Others Linux
Architecture String No x86_64

The system architecture of the system disk in the custom image. When you specify a data disk snapshot to create the system disk of the custom image, you must use the Architecture parameter to determine the system architecture of the system disk. Default value: x86_64. Valid values:

  • i386
  • x86_64
ClientToken String No 123e4567-e89b-12d3-a456-426655440000

The client token that is used to ensure the idempotence of the request. You can use the client to generate the value, but you must make sure that it is unique among different requests. The ClientToken value can only contain ASCII characters and cannot exceed 64 characters in length. For more information, see How to ensure idempotence.

Tag.N.value String No null

The value of tag N of the custom image.

Note This parameter will be removed in the future. We recommend that you use the Tag.N.Value parameter to ensure future compatibility.
Tag.N.key String No null

The key of tag N of the custom image.

Note This parameter will be removed in the future. We recommend that you use the Tag.N.Key parameter to ensure future compatibility.
Tag.N.Key String Yes KeyTest

The key of tag N of the custom image. Valid values of N: 1 to 20. The tag key cannot be an empty string. It can be up to 128 characters in length and cannot contain http:// or https://. It cannot start with acs: or aliyun.

Tag.N.Value String No ValueTest

The value of tag N of the custom image. Valid values of N: 1 to 20. The tag value can be an empty string. It can be up to 128 characters in length. It cannot start with acs: or contain http:// or https://.

ResourceGroupId String No rg-bp67acfmxazb4p****

The ID of the resource group to which to assign the custom image.
ImageFamily String No hangzhou-daily-update

The name of the image family of the custom image. The name must be 2 to 128 characters in length and can contain letters, digits, colons (:), underscores (_), and hyphens (-). It cannot contain http:// or https://. It must start with a letter and cannot start with acs: or aliyun.

This parameter is empty by default.

Response parameters

Parameter Type Example Description
ImageId String m-bp146shijn7hujku****

The ID of the image.
RequestId String 473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E

The ID of the request.

Examples

Sample requests

https://ecs.aliyuncs.com/?Action=CreateImage
&RegionId=cn-hangzhou
&DiskDeviceMapping.1.Size=2000
&DiskDeviceMapping.1.SnapshotId=s-bp17441ohwkdca0****
&DiskDeviceMapping.1.DiskType=system
&SnapshotId=s-bp17441ohwkdca0****
&InstanceId=i-bp1g6zv0ce8oghu7****
&ImageName=TestCentOS
&ImageVersion=2017011017
&Description=ImageTestDescription
&Platform=CentOS
&Architecture=x86_64
&ClientToken=123e4567-e89b-12d3-a456-426655440000
&Tag.1.Key=KeyTest
&Tag.1.Value=ValueTest
&<Common request parameters>

Sample success responses

XML format 

<CreateImageResponse>
      <RequestId>C8B26B44-0189-443E-9816-D951F59623A9</RequestId>
      <ImageId>m-bp146shijn7hujku****</ImageId>
</CreateImageResponse>

JSON format 

{
    "RequestId": "C8B26B44-0189-443E-9816-D951F59623A9",
    "ImageId": "m-bp146shijn7hujku****"
}

Error codes

HTTP status code Error code Error message Description
404 InvalidSnapshotId.NotFound The specified SnapshotId does not exist. The error message returned because the specified snapshot ID does not exist. Check whether the snapshot ID is correct.
400 InvalidImageName.Malformed The specified Image name is wrongly formed. The error message returned because the specified ImageName parameter is invalid. The name must be 2 to 128 characters in length and can contain letters, digits, periods (.), underscores (_), and hyphens (-). It must start with a letter and cannot start with http:// or https://.
400 InvalidImageName.Duplicated The specified Image name has already bean used. The error message returned because the specified image name is already in use.
400 InvalidDescription.Malformed The specified description is wrongly formed. The error message returned because the specified Description parameter is invalid. The description must be 2 to 256 characters in length and cannot start with http:// or https://.
400 InvalidImageVersion.Malformed The specified ImageVersion is wrongly formed. The error message returned because the specified image version is invalid or you are not authorized to use the snapshot.
403 InvalidSnapshotId.NotReady The current status of the DiskDeviceMapping.n.SnapshotId or SnapshotId does not support this operation. The error message returned because the operation is not supported while the specified snapshot is in the current state.
403 InvalidSnapshot.TooOld This operation is denied because the specified snapshot by DiskDeviceMapping.n.SnapshotId or SnapshotId is created before 2013-07-15. The error message returned because the operation is not supported while the snapshot specified by the DiskDeviceMapping.N.SnapshotId or SnapshotId parameter was created before July 15, 2013.
403 OperationDenied The specified snapshot is not allowed to create image. The error message returned because the specified snapshot cannot be used to create images.
403 QuotaExceed.Image The Image Quota exceeds. The error message returned because the maximum number of custom images has been reached.
403 OperationDenied The specified snapshot is not from system disk. The error message returned because the specified snapshot was not created from a system disk.
403 InvalidParamter.Conflict The specified same token is trying to make requests with different parameters. The error message returned because the same token is used to make requests that have different parameters.
404 InvalidInstanceId.NotFound The specified InstanceId does not exist. The error message returned because the specified InstanceId parameter does not exist. Check whether the instance ID is correct.
400 IncorrectInstanceStatus The current status of the instance does not support this operation. The error message returned because the operation is not supported while the instance is in the current state.
400 InstanceLockedForSecurity The specified operation is denied as your instance is locked for security reasons. The error message returned because the operation is not supported while the instance is locked for security reasons.
400 InvalidDevice.Malformed The specified parameter DiskDeviceMapping.n.Device is not valid. The error message returned because the specified DiskDeviceMapping.N.Device parameter is invalid.
400 MissingParameter The input parameter SnapshotId or InstanceId or DiskDeviceMapping that is mandatory for processing this request is not supplied. The error message returned because the SnapshotId, InstanceId, or DiskDeviceMapping parameter is not specified.
400 InvalidSize.ValueNotSupported The specified parameter DiskDeviceMapping.n.Size beyond the permitted range. The error message returned because the specified DiskDeviceMapping.N.Size parameter is not within the permitted range.
400 InvalidDevice.InUse The specified parameter DiskDeviceMapping.n.Device has been occupied. The error message returned because device names specified in the DiskDeviceMapping.N.Device value are already in use.
400 OperationDenied The specified parameter DiskDeviceMapping.n.SnapshotId does not contain system disk snapshot. The error message returned because the specified DiskDeviceMapping.N.SnapshotId parameter does not contain a system disk snapshot ID.
400 OperationDenied The specified parameter DiskDeviceMapping.n.SnapshotId contains two or more system disk snapshots. The error message returned because the specified DiskDeviceMapping.N.SnapshotId parameter already contains system disk snapshot IDs.
400 InvalidDiskCategory.CreateImage The specified diskCategory is not allowed to create image. The error message returned because the operation is not supported by the specified disk category.
403 InvalidAccountStatus.NotEnoughBalance Your account does not have enough balance. The error message returned because your account balance is insufficient. Top up your account and try again.
403 InvalidAccountStatus.SnapshotServiceUnavailable Snapshot service has not been opened yet. The error message returned because the operation is not supported while the snapshot service is not activated.
403 UserNotInTheWhiteList The user is not in the white list of create image by data disk snapshot. The error message returned because you are not authorized to create an image from data disk snapshots. Try again when you are authorized to do so.
400 InvalidArchitecture.Malformed The specified Architecture is wrongly formed. The error message returned because the specified Architecture parameter is invalid.
400 InvalidPlatform.Malformed The specified Platform is wrongly formed. The error message returned because the specified Platform parameter is invalid.
400 OperationDenied Not support creating system image from an encrypted snapshot/disk. The error message returned because an encrypted disk or snapshot cannot be used to create custom images.
400 InvalidParameter.AllEmpty %s The error message returned because no parameters are specified. Specify required parameters.
403 IncorrectDiskStatus.Invalid Device status is invalid, please restart instance and try again. The error message returned because the device status is invalid. Restart the instance and try again.
403 OperationDenied.InvalidSnapshotCategory %s The error message returned because the operation is not supported by the snapshot type.
403 QuotaExceed.Snapshot The snapshot quota exceeds. The error message returned because the maximum number of snapshots has been reached. To create new snapshots, delete snapshots that are no longer needed.
403 IncorrectDiskStatus.Transferring The specified device is transferring, you can retry after the process is finished. The error message returned because the specified disk is being migrated. Wait until the disk is migrated and try again.
403 IncorrectDiskStatus The current disk status does not support this operation. The error message returned because the operation is not supported while the disk is in the current state. Make sure that the disk is available and you have no overdue payment for it.
403 InvalidSystemSnapshot.Missing ? s The error message returned because the specified SnapshotId parameter is invalid. Check whether the snapshot exists.
403 IncorrectDiskStatus.CreatingSnapshot A previous snapshot creation is in process. The error message returned because another snapshot is being created. Wait until the snapshot is created and try again.
404 InvalidResourceGroup.NotFound The ResourceGroup provided does not exist in our records. The error message returned because the specified ResourceGroupId parameter does not exist.
500 InternalError The process of creating snapshot has failed due to some unknown error. The error message returned because the snapshot has failed to be created.
403 InvalidParameter.KMSKeyId.KMSUnauthorized ECS service have no right to access your KMS. The error message returned because ECS is not authorized to access your KMS resources.
500 InternalError The request processing has failed due to some unknown error, exception or failure. The error message returned because an internal error has occurred. Try again later. If the problem persists, submit a ticket.
400 Duplicate.TagKey The Tag.N.Key contain duplicate key. The error message returned because the specified tag key already exists. Tag keys must be unique.
400 InvalidTagKey.Malformed The specified Tag.n.Key is not valid. The error message returned because the specified Tag.N.Key parameter is invalid.
400 InvalidTagValue.Malformed The specified Tag.n.Value is not valid. The error message returned because the specified Tag.N.Value parameter is invalid.
403 QuotaExceed.Tags %s The error message returned because the number of specified tags has exceeded the upper limit.
400 InvalidDiskType.ValueNotSupported The specified disk type is not supported. The error message returned because the specified disk type is not supported.
400 IdempotenceParamNotMatch Request uses a client token in a previous request but is not identical to that request. The error message returned because this request and the previous request contain the same client token but different parameters.

For a list of error codes, visit the API Error Center.