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skopeoimage

Overview

This directory contains the Dockerfiles necessary to create the skopeoimage container images that are housed on quay.io under the skopeo account. All repositories where the images live are public and can be pulled without credentials. These container images are secured and the resulting containers can run safely with privileges within the container.

The container images are built using the latest Fedora and then Skopeo is installed into them. The PATH in the container images is set to the default PATH provided by Fedora. Also, the ENTRYPOINT and the WORKDIR variables are not set within these container images, as such they default to /.

The container images are:

  • quay.io/containers/skopeo:<version> and quay.io/skopeo/stable:<version> - These images are built when a new Skopeo version becomes available in Fedora. These images are intended to be unchanging and stable, they will never be updated by automation once they've been pushed. For build details, please see the configuration file.
  • quay.io/containers/skopeo:latest and quay.io/skopeo/stable:latest - Built daily using the same Dockerfile as above. The skopeo version will remain the "latest" available in Fedora, however the image contents may vary compared to the version-tagged images.
  • quay.io/skopeo/testing:latest - This image is built daily, using the latest version of Skopeo that was in the Fedora updates-testing repository. The image is Built with the testing Dockerfile.
  • quay.io/skopeo/upstream:latest - This image is built daily using the latest code found in this GitHub repository. Due to the image changing frequently, it's not guaranteed to be stable or even executable. The image is built with the upstream Dockerfile.

Sample Usage

Although not required, it is suggested that Podman be used with these container images.

# Get Help on Skopeo
podman run docker://quay.io/skopeo/stable:latest --help

# Get help on the Skopeo Copy command
podman run docker://quay.io/skopeo/stable:latest copy --help

# Copy the Skopeo container image from quay.io to
# a private registry
podman run docker://quay.io/skopeo/stable:latest copy docker://quay.io/skopeo/stable docker://registry.internal.company.com/skopeo

# Inspect the fedora:latest image
podman run docker://quay.io/skopeo/stable:latest inspect --config docker://registry.fedoraproject.org/fedora:latest  | jq