Develop client functionality for listing tags for a repository

[whatsacomputertho]

Overview

The terms "image name" and "repository" can be thought of as interchangeable in the CNCF distribution registry spec (at least how I understand it). There is an API endpoint in the CNCF distribution registry spec for listing all tags for a given image name (aka repository).

GET /v2/<name>/tags/list

For reference:

• https://distribution.github.io/distribution/spec/api/#listing-image-tags

The return value of this endpoint

{
    "name": <name>,
    "tags": [
        <tag>,
        ...
    ]
}

is included in the output of skopeo inspect in the RepoTags property.

{
    "RepoTags": [
        <tag>,
        ...
    ]
}

Hence, in order to develop equivalent functionality to skopeo inspect we must develop client functionality to reach this endpoint.

Acceptance

• A client method in the ContainerImageRegistryClient class are written to interact with this API endpoint generically
• A method in the ContainerImage class is written to list the tags for an image
• The ContainerImageInspect schema is updated to require the RepoTags parameter
• The inspect method in the ContainerImage class is updated to call the list tags method and include it in the ContainerImageInspect dict
• Unit tests are written for the new functionality, and the unit tests all pass

[whatsacomputertho]

This is now done in PR

• feat(inspect): implement python-native skopeo inspect #34

Moving to review

[whatsacomputertho]

This is now available in the v1.0.0-beta.1 release

• https://pypi.org/project/containerimage-py/1.0.0b1/

Closing as complete