containers/podman v4.7.0-rc1

on GitHub

Security

• Now the io.containers.capabilities LABEL in an image can be an empty string.

Features

• New command set: podman farm [create,list,remove,update] has been created to "farm" out builds to machines running Podman for different architectures.
• New command: podman compose as a thin wrapper around an external compose provider such as docker-compose or podman-compose.
• FreeBSD: podman run --device is now supported.
• Linux: Add a new --module flag for Podman.
• Podmansh: Timeout is now configurable using the podmansh_timeout option in containers.conf.
• SELinux: Add support for confined users to create containers but restrict them from creating privileged containers.
• WSL: Registers shared socket bindings on Windows, to allow other WSL distributions easy remote access (#15190).
• WSL: Enabling user-mode-networking on older WSL2 generations will now detect an error with upgrade guidance.
• The podman build command now supports two new options: --layer-label and --cw.
• The podman kube generate command now supports generation of k8s DaemonSet kind (#18899).
• The podman kube generate and podman kube play commands now support the k8s TerminationGracePeriodSeconds field (RH BZ#2218061).
• The podman kube generate and podman kube play commands now support securityContext.procMount: Unmasked (#19881).
• The podman generate kube command now supports a --podman-only flag to allow podman-only reserved annotations to be used in the generated YAML file. These annotations cannot be used by Kubernetes.
• The podman kube generate now supports a --no-trunc flag that supports YAML files with annotations longer than 63 characters. Warning: if an annotation is longer than 63 chars, then the generated yaml file is not Kubernetes compatible.
• An infra name annotation io.podman.annotations.infra.name is added in the generated yaml when the pod create command has --infra-name set. This annotation can also be used with kube play when wanting to customize the infra container name (#18312).
• The syntax of --uidmap and --gidmap has been extended to lookup the parent user namespace and to extend default mappings (#18333).
• The podman kube commands now support the List kind (#19052).
• The podman kube play command now supports environment variables in kube.yaml (#15983).
• The podman push and podman manifest push commands now support the --force-compression optionto prevent reusing other blobs (#18860).
• The podman manifest push command now supports --add-compression to push with compressed variants.
• The podman manifest push command now honors the add_compression field from containers.conf if --add-compression is not set.
• The podman run and podman create --mount commands now support the ramfs type (#19659).
• When running under systemd (e.g., via Quadlet), Podman will extend the start timeout in 30 second steps up to a maximum of 5 minutes when pulling an image.
• The --add-host option now accepts the special string host-gateway instead of an IP Address, which will be mapped to the host IP address.
• The podman generate systemd command is deprecated. Use Quadlet for running containers and pods under systemd.
• The podman secret rm command now supports an --ignore option.
• The --env-file option now supports multiline variables (#18724).
• The --read-only-tmpfs flag now affects /dev and /dev/shm as well as /run, /tmp, /var/tmp (#12937).
• The Podman --mount option now supports bind mounts passed as globs.
• The --mount option can now be specified in containers.conf using the mounts field.
• The podman stats now has an --all option to get all containers stats (#19252).
• There is now a new --sdnotify=healthy policy where Podman sends the READY message once the container turns healthy (#6160).
• Temporary files created when dealing with images in /var/tmp will automatically be cleaned up on reboot.
• There is now a new filter option since for podman volume ls and podman volume prune (#19228).
• The podman inspect command now has tab-completion support ([#18672])(#18672)).
• The podman kube play command now has support for the use of reserved annotations in the generated YAML.
• The progress bar is now displayed when decompressing a Podman machine image (#19240).
• The podman secret inspect command supports a new option --showsecret which will output the actual secret.
• The podman secret create now supports a --replace option, which allows you to modify secrets without replacing containers.
• The podman login command can now read the secret for a registry from its secret database created with podman secret create ([#18667]](#18667)).
• The remote Podman client’s podman play kube command now works with the --userns option (#17392).

Changes

• The /tmp and /var/tmp inside of a podman kube play will no longer be noexec.
• The limit of inotify instances has been bumped from 128 to 524288 for podman machine (#19848).
• The podman kube play has been improved to only pull a newer image for the "latest" tag (#19801).
• Pulling from an oci transport will use the optional name for naming the image.
• The podman info command will always display the existence of the Podman socket.
• The echo server example in socket_activation.md has been rewritten to use quadlet instead of podman generate systemd.
• Kubernetes support table documentation correctly show volumes support.
• The podman auto-update manpage and documentation has been updated and now includes references to Quadlet.

Quadlet

• Quadlet now supports setting Ulimit values.
• Quadlet now supports setting the PidsLimit option in a container.
• Quadlet unit files allow DNS field in Network group and DNS, DNSSearch, and DNSOption field in Container group (#19884).
• Quadlet now supports ShmSize option in unit files.
• Quadlet now recursively calls in user directories for unit files.
• Quadlet now allows the user to set the service working directory relative to the YAML or Unit files (17177).
• Quadlet now allows setting user-defined names for Volume and Network units via the VolumeName and NetworkName directives, respectively.
• Kube quadlets can now support autoupdate.

Bugfixes

• Fixed an issue where containers were being restarted after a podman kill.
• Fixed a bug where events could report incorrect healthcheck results (#19237.
• Fixed a bug where running a container in a pod didn't fail if volumes or mounts were specified in the containers.conf file.
• Fixed a bug where pod cgroup limits were not being honored after a reboot (#19175).
• Fixed a bug where podman rm -af could fail to remove containers under some circumstances (#18874).
• Fixed a bug in rootless to clamp oom_score_adj to current value if it is too low (#19829).
• Fixed a bug where --hostuser was being parsed in base 8 instead of base 10 (#19800).
• Fixed a bug where kube down would error when an object did not exist (#19711).
• Fixed a bug where containers created via DOCKER API without specifying StopTimeout had StopTimeout defaulting to 0 seconds (#19139).
• Fixed a bug in podman exec to set umask to match the container it's execing into (#19713).
• Fixed a bug where podman kube play failed to set a container's Umask to the default 0022.
• Fixed a bug to automatically reassign Podman's machine ssh port on Windows when it conflicts with in-use system ports (#19554).
• Fixed a bug where locales weren't passed to conmon correctly, resulting in a crash if some characters were specified over CLI (containers/common/#272).
• Fixed a bug where podman top would sometimes not print the full output (#19504).
• Fixed a bug were podman logs --tail could return incorrect lines when the k8s-file logger is used (#19545).
• Fixed a bug where podman stop did not ignore cidfile not existing when user specified --ignore flag (#19546).
• Fixed a bug where a container with an image volume and an inherited mount from the --volumes-from option that used the same path could not be created (#19529).
• Fixed a bug where podman cp via STDIN did not delete temporary files (#19496).
• Fixed a bug where Compatibility API did not accept timeout=-1 for stopping containers (#17542).
• Fixed a bug where podman run --rmi did not remove the container (#15640).
• Fixed a bug to recover from inconsistent podman-machine states with QEMU (#16054).
• Fixed a bug where CID Files on remote clients are not removed when container is removed (#19420).
• Fixed a bug in podman inspect to show a .NetworkSettings.SandboxKey path for containers created with --net=none (#16716).
• Fixed a concurrency bug in podman machine start using the QEMU provider (#18662).
• Fixed a bug in podman run and podman create where the command fails if the user specifies a non-existent authfile path (#18938).
• Fixed a bug where some distributions added extra quotes around the distribution name removed from podman info output (#19340).
• Fixed a crash validating --device argument for create and run (#19335).
• Fixed a bug where .HostConfig.PublishAllPorts always evaluates to false when inspecting a container created with --publish-all.
• Fixed a bug in podman image trust command to allow using the local policy.json file (#19073).

API

• Fixed a bug with parsing of the pull query parameter for the compat /build endpoint (#17778).

Misc

• Updated Buildah to v1.32.0.