Chapter 4. Red Hat Quay repository overview


A repository provides a central location for storing a related set of container images. These images can be used to build applications along with their dependencies in a standardized format.

Repositories are organized by namespaces. Each namespace can have multiple repositories. For example, you might have a namespace for your personal projects, one for your company, or one for a specific team within your organization.

Red Hat Quay provides users with access controls for their repositories. Users can make a repository public, meaning that anyone can pull, or download, the images from it, or users can make it private, restricting access to authorized users or teams.

There are three ways to create a repository in Red Hat Quay: by pushing an image with the relevant podman command, by using the Red Hat Quay UI, or by using the Red Hat Quay API. Similarly, repositories can be deleted by using the UI or the proper API endpoint.

4.1. Creating a repository by using the UI

Use the following procedure to create a repository using the Red Hat Quay UI.

Procedure

Use the following procedure to create a repository using the v2 UI.

Procedure

  1. Click Repositories on the navigation pane.
  2. Click Create Repository.
  3. Select a namespace, for example, quayadmin, and then enter a Repository name, for example, testrepo.

    Important

    Do not use the following words in your repository name: * build * trigger * tag

    When these words are used for repository names, users are unable access the repository, and are unable to permanently delete the repository. Attempting to delete these repositories returns the following error: Failed to delete repository <repository_name>, HTTP404 - Not Found.

  4. Click Create.

    Now, your example repository should populate under the Repositories page.

  5. Optional. Click Settings Repository visibility Make private to set the repository to private.

4.2. Creating a repository by using Podman

With the proper credentials, you can push an image to a repository using Podman that does not yet exist in your Red Hat Quay instance. Pushing an image refers to the process of uploading a container image from your local system or development environment to a container registry like Red Hat Quay. After pushing an image to your registry, a repository is created. If you push an image through the command-line interface (CLI) without first creating a repository on the UI, the created repository is set to Private.

Use the following procedure to create an image repository by pushing an image.

Prerequisites

  • You have download and installed the podman CLI.
  • You have logged into your registry.
  • You have pulled an image, for example, busybox.

Procedure

  1. Pull a sample page from an example registry. For example:

    $ sudo podman pull busybox

    Example output

    Trying to pull docker.io/library/busybox...
    Getting image source signatures
    Copying blob 4c892f00285e done
    Copying config 22667f5368 done
    Writing manifest to image destination
    Storing signatures
    22667f53682a2920948d19c7133ab1c9c3f745805c14125859d20cede07f11f9

  2. Tag the image on your local system with the new repository and image name. For example:

    $ sudo podman tag docker.io/library/busybox quay-server.example.com/quayadmin/busybox:test
  3. Push the image to the registry. Following this step, you can use your browser to see the tagged image in your repository.

    $ sudo podman push --tls-verify=false quay-server.example.com/quayadmin/busybox:test

    Example output

    Getting image source signatures
    Copying blob 6b245f040973 done
    Copying config 22667f5368 done
    Writing manifest to image destination
    Storing signatures

4.3. Creating a repository by using the API

Use the following procedure to create an image repository using the Red Hat Quay API.

Prerequisites

Procedure

  1. Enter the following command to create a repository using the POST /api/v1/repository endpoint:

    $ curl -X POST \
      -H "Authorization: Bearer <bearer_token>" \
      -H "Content-Type: application/json" \
      -d '{
        "repository": "<new_repository_name>",
        "visibility": "<private>",
        "description": "<This is a description of the new repository>."
      }' \
      "https://quay-server.example.com/api/v1/repository"

    Example output

    {"namespace": "quayadmin", "name": "<new_repository_name>", "kind": "image"}

4.4. Deleting a repository by using the UI

You can delete a repository directly on the UI.

Prerequisites

  • You have created a repository.

Procedure

  1. On the Repositories page of the v2 UI, check the box of the repository that you want to delete, for example, quayadmin/busybox.
  2. Click the Actions drop-down menu.
  3. Click Delete.
  4. Type confirm in the box, and then click Delete.

    After deletion, you are returned to the Repositories page.

4.5. Deleting a repository by using the Red Hat Quay API

Use the following procedure to delete a repository using the Red Hat Quay API.

Prerequisites

Procedure

  1. Enter the following command to delete a repository using the DELETE /api/v1/repository/{repository} endpoint:

    $ curl -X DELETE   -H "Authorization: Bearer <bearer_token>" "<quay-server.example.com>/api/v1/repository/<namespace>/<repository_name>"
  2. The CLI does not return information when deleting a repository from the CLI. To confirm deletion, you can check the Red Hat Quay UI, or you can enter the following GET /api/v1/repository/{repository} command to see if details are returned for the deleted repository:

    $ curl -X GET -H "Authorization: Bearer <bearer_token>" "<quay-server.example.com>/api/v1/repository/<namespace>/<repository_name>"

    Example output

    {"detail": "Not Found", "error_message": "Not Found", "error_type": "not_found", "title": "not_found", "type": "http://quay-server.example.com/api/v1/error/not_found", "status": 404}
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