[ aws . ecr ]

batch-check-layer-availability

Description

Checks the availability of one or more image layers in a repository.

When an image is pushed to a repository, each image layer is checked to verify if it has been uploaded before. If it has been uploaded, then the image layer is skipped.

Note

This operation is used by the Amazon ECR proxy and is not generally used by customers for pulling and pushing images. In most cases, you should use the docker CLI to pull, tag, and push images.

See also: AWS API Documentation

See ‘aws help’ for descriptions of global parameters.

Synopsis

  batch-check-layer-availability
[--registry-id <value>]
--repository-name <value>
--layer-digests <value>
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]

Options

--registry-id (string)

The AWS account ID associated with the registry that contains the image layers to check. If you do not specify a registry, the default registry is assumed.

--repository-name (string)

The name of the repository that is associated with the image layers to check.

--layer-digests (list)

The digests of the image layers to check.

(string)

Syntax:

"string" "string" ...

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See ‘aws help’ for descriptions of global parameters.

Examples

To check the availability of a layer

The following batch-check-layer-availability example checks the availability of a layer with the digest sha256:6171c7451a50945f8ddd72f7732cc04d7a0d1f48138a426b2e64387fdeb834ed in the cluster-autoscaler repository.

aws ecr batch-check-layer-availability \
    --repository-name cluster-autoscaler \
    --layer-digests sha256:6171c7451a50945f8ddd72f7732cc04d7a0d1f48138a426b2e64387fdeb834ed

Output:

{
    "layers": [
        {
            "layerDigest": "sha256:6171c7451a50945f8ddd72f7732cc04d7a0d1f48138a426b2e64387fdeb834ed",
            "layerAvailability": "AVAILABLE",
            "layerSize": 2777,
            "mediaType": "application/vnd.docker.container.image.v1+json"
        }
    ],
    "failures": []
}

Output

layers -> (list)

A list of image layer objects corresponding to the image layer references in the request.

(structure)

An object representing an Amazon ECR image layer.

layerDigest -> (string)

The sha256 digest of the image layer.

layerAvailability -> (string)

The availability status of the image layer.

layerSize -> (long)

The size, in bytes, of the image layer.

mediaType -> (string)

The media type of the layer, such as application/vnd.docker.image.rootfs.diff.tar.gzip or application/vnd.oci.image.layer.v1.tar+gzip .

failures -> (list)

Any failures associated with the call.

(structure)

An object representing an Amazon ECR image layer failure.

layerDigest -> (string)

The layer digest associated with the failure.

failureCode -> (string)

The failure code associated with the failure.

failureReason -> (string)

The reason for the failure.