Podman

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5.2.0rc2

Features
- Quadlet now has support for `.build` files, which allows images to be built by Quadlet and then used by Quadlet containers.
- Quadlet `.container` files now support two new fields, `LogOpt` to specify container logging configuration and `StopSignal` to specify container stop signal ([23050](https://github.com/containers/podman/issues/23050)).
- Quadlet `.container` and `.pod` files now support a new field, `NetworkAlias`, to add network aliases.
- Quadlet drop-in search paths have been expanded to include top-level type drop-ins (`container.d`, `pod.d`) and truncated unit drop-ins (`unit-.container.d`) ([23158](https://github.com/containers/podman/issues/23158)).
- Podman now supports a new command, `podman system check`, which will identify (and, if possible, correct) corruption within local container storage.
- The `podman machine reset` command will now reset all providers available on the current operating system (e.g. ensuring that both HyperV and WSL `podman machine` VMs will be removed on Windows).

Changes
- Podman now requires the new kernel mount API, introducing a dependency on Linux Kernel v5.2 or higher.
- Quadlet `.image` units now have a dependency on `network-online.target` ([21873](https://github.com/containers/podman/issues/21873)).
- The `--device` option to `podman create` and `podman run` is no longer ignored when `--privileged` is also specified ([23132](https://github.com/containers/podman/issues/23132)).
- The `podman start` and `podman stop` commands no longer print the full ID of the pod started/stopped, but instead the user's input used to specify the pod (e.g. `podman pod start b` will print `b` instead of the pod's full ID) ([22590](https://github.com/containers/podman/issues/22590)).
- Virtual machines created by `podman machine` on Linux now use `virtiofs` instead of `9p` for mounting host filesystems. Existing mounts will be transparently changed on machine restart or recreation. This should improve performance and reliability of host mounts.
- Using both the `--squash` and `--layers=false` options to `podman build` at the same time is now allowed.
- Podman now passes container's stop timeout to systemd when creating cgroups, causing it to be honored when systemd stops the scope. This should prevent hangs on system shutdown due to running Podman containers.
- The `--volume-driver` option to `podman machine init` is now deprecated.

Bugfixes
- Fixed a bug where rootless containers created with the `--sdnotify=healthy` option could panic when started ([22651](https://github.com/containers/podman/issues/22651)).
- Fixed a bug where containers created with the `--sdnotify=healthy` option that exited quickly would sometimes return an error instead of notifying that the container was ready ([22760](https://github.com/containers/podman/issues/22760)).
- Fixed a bug where the `podman system reset` command did not remove the containers/image blob cache ([22825](https://github.com/containers/podman/issues/22825)).
- Fixed a bug where Podman would sometimes create a cgroup for itself even when the `--cgroups=disabled` option was specified at container creation time ([20910](https://github.com/containers/podman/issues/20910)).
- Fixed a bug where the `/etc/hosts` file in a container was not created with a newline at the end of the file ([22729](https://github.com/containers/podman/issues/22729)).
- Fixed a bug where the `podman start` command could sometimes panic when starting a container in the stopped state.
- Fixed a bug where the `podman system renumber` command would fail if volumes existed when using the `sqlite` database backend ([23052](https://github.com/containers/podman/issues/23052)).
- Fixed a bug where the `podman container restore` command could not successfully restore a container in a pod.
- Fixed a bug where an error message from `podman diff` would suggest using the `--latest` option when using the remote Podman client ([23038](https://github.com/containers/podman/issues/23038)).
- Fixed a bug where user could assign more memory to a Podman machine than existed on the host ([18206](https://github.com/containers/podman/issues/18206)).
- Fixed a bug where the `podman events` command was rarely unable to report errors that occurred ([23165](https://github.com/containers/podman/issues/23165)).
- Fixed a bug where containers run in systemd units would sometimes not be removed correctly on exit when using the `--cidfile` option.
- Fixed a bug where the first Podman command run after a reboot could cause hang when using transient mode ([22984](https://github.com/containers/podman/issues/22984)).
- Fixed a bug where Podman could throw errors about a database configuration mismatch if certain paths did not exist on the host.
- Fixed a bug where the `podman run` and `podman start` commands could throw strange errors if another Podman process stopped the container at a midpoint in the process of starting ([23246](https://github.com/containers/podman/issues/23246)).
- Fixed a bug where the `podman system service` command could leak a mount on termination.
- Fixed a bug where the Podman remote client would panic if an invalid image filter was passed to `podman images` ([23120](https://github.com/containers/podman/issues/23120)).
- Fixed a bug where the `podman auto-update` and `podman system df` commands could fail when a container was removed while the command was running ([23279](https://github.com/containers/podman/issues/23279)).
- Fixed a bug where the `podman machine init` command could panic when trying to decompress an empty file when preparing the VM image ([23281](https://github.com/containers/podman/issues/23281)).
- Fixed a bug where the `podman ps --pod` and `podman pod stats` commands could sometimes fail when a pod was removed while the command was running ([23282](https://github.com/containers/podman/issues/23282)).
- Fixed a bug where the `podman stats` and `podman pod stats` commands would sometimes exit with a `container is stopped` error when showing all containers (or pod containers, for `pod stats`) if a container stopped while the command was running ([23334](https://github.com/containers/podman/issues/23334)).
- Fixed a bug where the output of container healthchecks was not properly logged if it did not include a final newline ([23332](https://github.com/containers/podman/issues/23332)).

API
- The Build API for Images now accepts a comma-separated list in the Platform query parameter, allowing a single API call to built an image for multiple architectures ([22071](https://github.com/containers/podman/issues/22071)).
- Fixed a bug where the Remove endpoint for Volumes would return an incorrectly formatted error when called with an ambiguous volume name ([22616](https://github.com/containers/podman/issues/22616)).
- Fixed a bug where the Stats endpoint for Containers would return an incorrectly formatted error when called on a container that did not exist ([22612](https://github.com/containers/podman/issues/22612)).
- Fixed a bug where the Start endpoint for Pods would return a 409 error code in cases where a 500 error code should have been returned ([22989](https://github.com/containers/podman/issues/22989)).
- Fixed a bug where the Top endpoint for Pods would return a 200 status code and then subsequently an error ([22986](https://github.com/containers/podman/issues/22986)).

Misc
- Podman no longer requires all parent directories of its root and runroot to be world-executable ([23028](https://github.com/containers/podman/issues/23028)).
- Error messages from the `podman build` command when the `-f` option is given, but points to a file that does not exist, have been improved ([22940](https://github.com/containers/podman/issues/22940)).
- The Podman windows installer is now built using WiX 5.

5.2.0rc1

This is the first release candidate of Podman v5.2.0. We are expecting final release at the end of this month after 3 RCs.

Preliminary release notes will be available next week with RC2.

5.1.2

Bugfixes
- Fixed a bug that would sometimes prevent the mount of some `podman machine` volumes into the virtual machine when using the Apple hypervisor ([22569](https://github.com/containers/podman/issues/22569)).
- Fixed a bug where `podman top` would show the incorrect UID for processes in containers run in a user namespace ([22293](https://github.com/containers/podman/issues/22293)).
- Fixed a bug where the `/etc/hosts` and `/etc/resolv.conf` files in a container would be empty after restoring from a checkpoint ([22901](https://github.com/containers/podman/issues/22901)).
- Fixed a bug where the `--pod-id-file` argument to `podman run` and `podman create` did not respect the pod's user namespace ([22931](https://github.com/containers/podman/issues/22931)).
- Fixed a bug in the Podman remote client where specifying a invalid connection in the `CONTAINER_CONNECTION` environment variable would lead to a panic.

Misc
- Virtual machines run by `podman machine` using the Apple hypervisor now wait 90 seconds before forcibly stopping the VM, matching the standard systemd shutdown timeout ([22515](https://github.com/containers/podman/issues/22515)).
- Updates the containers/image library to v5.31.1

5.1.1

Bugfixes
- Fixed a bug where systemd timers associated with startup healthchecks would not be properly deleted after transitioning to the regular healthcheck ([22884](https://github.com/containers/podman/issues/22884)).

Misc
- Updated the containers/common library to v0.59.1

5.1.0

What's Changed
* Fix dns_option typo by robbmanes in https://github.com/containers/podman-py/pull/386
* Fixes encoding of `X-Registry-auth` HTTP Header value from Base64 to `url_safe` Base64 by apozsuse in https://github.com/containers/podman-py/pull/385
* Include py.typed marker file. by jonded94 in https://github.com/containers/podman-py/pull/381
* [skip-ci] Packit: enable c10s downstream sync by lsm5 in https://github.com/containers/podman-py/pull/388
* ignore proxies from the env vars when using UNIX Domain Sockets by eighthave in https://github.com/containers/podman-py/pull/391
* Fix Pylint E0606 for undefined variable after else by inknos in https://github.com/containers/podman-py/pull/392
* [skip-ci] Packit: use default `update_release` behavior by lsm5 in https://github.com/containers/podman-py/pull/393
* Update OWNERS by jwhonce in https://github.com/containers/podman-py/pull/394
* Fix README TypeError when one container is running by inknos in https://github.com/containers/podman-py/pull/395
* Remove Fedora release number from task names by cevich in https://github.com/containers/podman-py/pull/396
* Add python 3.12 support and remove python xdg by inknos in https://github.com/containers/podman-py/pull/401
* Update index.rst Client -> PodmanClient by jwoehr in https://github.com/containers/podman-py/pull/405
* Implementing the functionality of the 'named' argument of the 'Image.save' method by milanbalazs in https://github.com/containers/podman-py/pull/406
* Fix the locally non-existent image fails with AttributeError by milanbalazs in https://github.com/containers/podman-py/pull/408
* Enable demux option in `exec_run` by inknos in https://github.com/containers/podman-py/pull/410
* Bump version to 5.1.0 by inknos in https://github.com/containers/podman-py/pull/409

New Contributors
* robbmanes made their first contribution in https://github.com/containers/podman-py/pull/386
* jonded94 made their first contribution in https://github.com/containers/podman-py/pull/381
* eighthave made their first contribution in https://github.com/containers/podman-py/pull/391
* inknos made their first contribution in https://github.com/containers/podman-py/pull/392
* jwoehr made their first contribution in https://github.com/containers/podman-py/pull/405

**Full Changelog**: https://github.com/containers/podman-py/compare/v5.0.0...v5.1.0

5.1.0rc1

This is the first release candidate for Podman v5.1.0. We expect the final release in 2 weeks (May 29 2024). Preliminary release notes follow.

Features
- Changes made by the `podman update` command are now persistent, and will survive container restart and be reflected in `podman inspect`.
- The `podman update` command now includes a new option, `--restart`, to update the restart policy of existing containers.
- Quadlet `.container` files now support a new key, `GroupAdd`, to add groups to the container.
- Container annotations are now printed by `podman inspect`.
- Image-based mounts using `podman run --mount type=image,...` now support a new option, `subpath`, to mount only part of the image into the container.
- A new field, `healthcheck_events`, has been added to `containers.conf` under the `[engine]` section to allow users to disable the generation of `health_status` events to avoid spamming logs on systems with many healthchecks.
- A list of images to automatically mount as volumes can now be specified in Kubernetes YAML via the `io.podman.annotations.kube.image.automount/$CTRNAME` annotation (where `$CTRNAME` is the name of the container they will be mounted into).
- The `podman info` command now includes the default rootless network command (`pasta` or `slirp4netns`).
- The `podman ps` command now shows ports from `--expose` that have not been published with `--publish-all` to improve Docker compatibility.
- The `podman runlabel` command now expands `$HOME` in the label being run to the user's home directory.
- A new alias, `podman network list`, has been added to the `podman network ls` command.

Changes
- When running Kubernetes YAML with `podman kube play` that does not include an `imagePullPolicy` and does not set a tag for the image, the image is now always pulled ([21211](https://github.com/containers/podman/issues/21211)).
- When running Kubernetes YAML with `podman kube play`, pod-level restart policies are now passed down to individual containers within the pod ([20903](https://github.com/containers/podman/issues/20903)).
- The `--runroot` global option can now accept paths with lengths longer than 50 characters ([22272](https://github.com/containers/podman/issues/22272)).
- Updating containers with the `podman update` command now emits an event.

Bugfixes
- Fixed a bug where the `--userns=keep-id:uid=0` option to `podman create` and `podman run` would generate incorrect UID mappings and cause the container to fail to start ([22078](https://github.com/containers/podman/issues/22078)).
- Fixed a bug where `podman stats` could report inaccurate percentages for very large or very small values ([22064](https://github.com/containers/podman/issues/22064)).
- Fixed a bug where bind-mount volumes defaulted to `rbind` instead of `bind`, meaning recursive mounts were allowed by default ([22107](https://github.com/containers/podman/issues/22107)).
- Fixed a bug where the `podman machine rm -f` command would fail to remove Hyper-V virtual machines if they were running.
- Fixed a bug where the `podman ps --sync` command could sometimes fail to properly update the status of containers.
- Fixed a bug where bind-mount volumes using the `:idmap` option would sometimes be inaccessible with rootless Podman ([22228](https://github.com/containers/podman/issues/22228)).
- Fixed a bug where bind-mount volumes using the `:U` option would have their ownership changed to the owner of the directory in the image being mounted over ([22224](https://github.com/containers/podman/issues/22224)).
- Fixed a bug where removing multiple containers, pods, or images with the `--force` option did not work when multiple arguments were given to the command and one of them did not exist ([21529](https://github.com/containers/podman/issues/21529)).
- Fixed a bug where Podman did not properly clean up old cached Machine images.
- Fixed a bug where rapidly-restarting containers with healthchecks could sometimes fail to start their healthchecks after restarting.
- Fixed a bug where nested Podman could create its `pause.pid` file in an incorrect directory ([22327](https://github.com/containers/podman/issues/22327)).
- Fixed a bug where Podman would panic if an OCI runtime was configured without associated paths in `containers.conf` ([22561](https://github.com/containers/podman/issues/22561)).
- Fixed a bug where the `podman kube down` command would not respect the `StopTimeout` and `StopSignal` of containers that it stopped ([22397](https://github.com/containers/podman/issues/22397)).
- Fixed a bug where Systemd-managed containers could be stuck in the Stopping state, unable to be restarted, if systemd killed the unit before `podman stop` finished stopping the container ([19629](https://github.com/containers/podman/issues/19629)).
- Fixed a bug where the remote Podman client's `podman farm build` command would not updating manifests on the registry that were already pushed ([22647](https://github.com/containers/podman/issues/22647)).
- Fixed a bug where rootless Podman could fail to re-exec itself when run with a custom `argv[0]` that is not a valid command path, as might happen when used in `podmansh` ([22672](https://github.com/containers/podman/issues/22672)).
- Fixed a bug where `podman machine` connection URIs could be incorrect after an SSH port conflict, rendering machines inaccessible.
- Fixed a bug where the `podman events` command would not print an error if incorrect values were passed to its `--since` and `--until` options.

API
- A new Docker-compatible endpoint, Update, has been added for containers.
- The Compat Create endpoint for Containers now supports setting container annotations.
- The Libpod List endpoint for Images now includes additional information in its responses (image architecture, OS, and whether the image is a manifest list) ([22184](https://github.com/containers/podman/issues/22184) and [#22185](https://github.com/containers/podman/issues/22185)).
- The Build endpoint for Images no longer saves the build context as a temporary file, substantially improving performance and reducing required filesystem space on the server.
- Fixed a bug where the Build endpoint for Images would not clean up temporary files created by the build if an error occurred.

Misc
- Podman now detects unhandled system reboots and advises the user on proper mitigations.
- Improved debugging output for `podman machine` on Darwin systems when `--log-level=debug` is used.
- The Makefile now allows injecting extra build tags via the `EXTRA_BUILD_TAGS` environment variable.

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