Release Notes

Big release for Podlet!

In case you didn't already notice, Podlet is now officially a part of the Containers community! As a part of the transition, a new code of conduct, security policy, and contribution guidelines were added (#76). Additionally, the Podlet container image is now available at ghcr.io/containers/podlet. The existing images at quay.io/k9withabone/podlet and docker.io/k9withabone/podlet are deprecated and will not be receiving updates.

Under the hood, the library used to deserialize Compose files was changed (#73). As a result, only Compose files which follow the Compose specification are supported. The top-level version field is completely ignored. Most Compose files should still work as before. This was a large change so look out for bugs.

Added support for Quadlet options introduced in Podman v5.0.0 (#75). The headline feature is support for generating Quadlet .pod files. They can be generated from:

• A Podman command with podlet podman pod create.
• A Compose file with podlet compose --pod.
• An existing pod with podlet generate pod.
  • This creates a .pod file and a .container file for each container in the pod.

Note that the existing option for generating Kubernetes Pod YAML from a Compose file was renamed to podlet compose --kube. Both the --pod and --kube options of podlet compose do not take an argument and instead require the top-level name field in the Compose file. The name is used as the name of the pod and in the filename of the created files.

Features

• Add podlet --binds-to option.
• BREAKING (compose) Rename podlet compose --pod to podlet compose --kube.
• (container) Add Entrypoint= Quadlet option.
• (container) Add StopTimeout= Quadlet option.
• (container) Support Notify=healthy Quadlet option.
• (container) Support no-dereference option for Mount=.
• (container) Add podman run --preserve-fd option.
• (container) Add podman run --gpus option.
• (container) Add podman run --retry option.
• (container) Add podman run --retry-delay option.
• Add podman --config global option.
• (pod) Generate .pod Quadlet file from command.
  • Adds the podlet podman pod create subcommand.
  • The --infra-conmon-pidfile and --pod-id-file options were deliberately not implemented as they are set by Quadlet in the generated {name}-pod.service file and can't be set multiple times.
• BREAKING (compose) Re-add podlet compose --pod option.
  • The --pod option causes podlet to create a .pod Quadlet file in addition to the .container, .volume, and .network files. The containers are linked to the pod and their published ports are moved.
• (generate) Quadlet files from an existing pod and its containers.
  • Adds the podlet generate pod subcommand.
    • Runs podman pod inspect on the given pod.
    • Deserializes the output.
    • Parses the pod creation command.
    • Does the same for each of the pod's containers.

Bug Fixes

• Use Quadlet serializer for Unit Display implementation (#64).
  • Brings Unit inline with the other sections of the generated Quadlet file.
• (container) Add podman run --uts option.
• (container) --pids-limit range is -1..=u32::MAX.
• (container) Enforce --blkio-weight range 10..=1000.
• (container) --blkio-weight-device can be specified multiple times.
• (container) Don't add empty PodmanArgs= when downgrading Podman version.
• Correct use of eyre::bail!() on non-Unix platforms.

Documentation

• (clippy) Fix Clippy lint warning for Idmap.
• (compose) --kube help add name requirement.
• Add code of conduct.
• Add security policy.
• Update links to the repository.
  • The repository is now at https://github.com/containers/podlet.
• (contributing) Add contribution guidelines.
  • Adapted from the Buildah/Podman contribution guidelines.
  • Suggests the use of conventional commits and clarifies that the Signed-off-by footer is required for a PR to be merged.
  • Moved and expanded upon the building and continuous integration sections from the README.md file to the new CONTRIBUTING.md file.
• (readme) Update container image location.
  • The Podlet container image is now located at ghcr.io/containers/podlet.
• Fix Podman and Quadlet capitalization.
• (readme) Update demo, features, and usage.

Refactor

• BREAKING (deps) Remove docker_compose_types.
• BREAKING (compose) Deserialize compose_spec::Compose.
• cli::Unit::is_empty()
  • Check each field instead of comparing to the default.
• (compose) Conversion to quadlet::Files from compose_spec::Compose.
• (compose) quadlet::Globals from compose_spec::Service.
• (compose) Container Quadlet options from compose_spec::Service.
• (compose) Container Podman args from compose_spec::Service.
• (compose) quadlet::Network from compose_spec::Network.
• (compose) quadlet::Volume from compose_spec::Volume.
• (compose) Kubernetes YAML from compose_spec::Compose.
• (container) Destructure in Quadlet option conversion.
• (compose) Move podlet compose args into their own struct.

Miscellaneous

• (deps) Remove duration-str dependency.
  • All usages were replaced with compose_spec::duration.
• Add Podman v5.0.0 to Podman versions.
  • Also added v4.9.X aliases to 4.8 and v5.0.X aliases to 5.0.
• (container) Reorder fields to match Quadlet docs.
• (lints) Fix new rust 1.78 clippy lints.
• BREAKING (release-container) Push to ghcr.io/containers/podlet.
  • The docker.io/k9withabone/podlet and quay.io/k9withabone/podlet container images will no longer be updated.
• (release-container) Add annotations/labels to manifest/image.
  • Adds labels to the Podlet container image and annotations to the multi-arch manifest as suggested by the GitHub packages documentation: https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-container-registry#labelling-container-images.
• (ci) Bump actions/checkout to v4.
• (ci) Use Buildah container to build Podlet container.
• (deps) Update dependencies.
• (release) Update cargo-dist.
• (release-container) Fix manifest annotation quoting.
• (ci) Use consistent formatting.
• (ci) Add image to manifest when building container.
• (ci) Add build job.

Download podlet 0.3.0