GetRepoTagLayers - Container Registry - Alibaba Cloud Documentation Center

Queries the information about image layers of an image tag.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer.

Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
cr:GetRepositoryLayers	Read	All Resources *	none	none

Request parameters

Parameter	Type	Required	Description	Example
InstanceId	string	Yes	The ID of the instance.	cri-kmsiwlxxdcva****
RepoId	string	Yes	The ID of the image repository.	crr-v7m9m2g0qkqjf56p
Tag	string	Yes	The tag of the image.	master
Digest	string	No	The digest of the image.	sha256:c851258edfe02c14772a1a3c0194a8aeb2a08c0db5e51371165b3610946f0953

Response parameters

Parameter	Type	Description	Example
	object	The returned result.
Code	string	The return value.	success
IsSuccess	boolean	Indicates whether the request is successful. Valid values: `true`: The request is successful. `false`: The request fails.	true
RequestId	string	The ID of the request.	BC648259-91A7-4502-BED3-EDF64361FA83
Layers	object []	The queried image layers.	[]
BlobDigest	string	The digest of a single image layer.	sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4
LayerIndex	integer	The sequence number of the layer stack.	1
LayerInstruction	string	The command for the image layer.	CMD
LayerCMD	string	Operation on the image layer.	["bash"]
BlobSize	long	The size of the image layer.	32

Examples

Sample success responses

JSONformat

{
  "Code": "success",
  "IsSuccess": true,
  "RequestId": "BC648259-91A7-4502-BED3-EDF64361FA83",
  "Layers": [
    {
      "BlobDigest": "sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4",
      "LayerIndex": 1,
      "LayerInstruction": "CMD",
      "LayerCMD": "[\"bash\"]",
      "BlobSize": 32
    }
  ]
}

Error codes

HTTP status code	Error code	Error message
403	NoPrivilege	Access denied for this user.
500	SystemError	Unknown error.

For a list of error codes, visit the Service error codes.