[pkg-go] Bug#1103560: podman: The cgroupv2 manager is set to systemd but there is no systemd user session available

[andrew at lists.savchenko.net]

Package: podman
Version: 5.4.2+ds1-1
Severity: normal

Podman shows the following warning when trying to (start|stop) a container:

----------------------------------------------------
WARN[0000] The cgroupv2 manager is set to systemd but there is no 
systemd user session available
WARN[0000] For using systemd, you may need to log in using a user session
WARN[0000] Alternatively, you can enable lingering with: `loginctl 
enable-linger 1000` (possibly as root)
WARN[0000] Falling back to --cgroup-manager=cgroupfs
----------------------------------------------------

As noted in this [1] comment:

By default, $DBUS_SESSION_BUS_ADDRESS is set to 
unix:path=/tmp/dbus-<RANDOM>,guid=<RANDOM>

However, for podman to work, it must be unix:path=/run/user/$(id -u)/bus


[1] https://github.com/containers/podman/issues/8776#issuecomment-1237740241


-- System Information:
Debian Release: trixie/sid
   APT prefers testing
   APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.21-amd64 (SMP w/24 CPU threads; PREEMPT)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_AU:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages podman depends on:
ii  conmon                           2.1.12-4
ii  crun                             1.21-1
ii  golang-github-containers-common  0.62.2+ds1-2
ii  init-system-helpers              1.68
ii  libc6                            2.41-6
ii  libgpgme11t64                    1.24.2-1+b1
ii  libseccomp2                      2.6.0-2
ii  libsqlite3-0                     3.46.1-3
ii  libsubid5                        1:4.17.4-1
ii  netavark                         1.14.0-2
ii  runc                             1.1.15+ds1-2+b2

Versions of packages podman recommends:
ii  buildah             1.39.3+ds1-1+b1
ii  ca-certificates     20241223
ii  catatonit           0.2.1-1
ii  containers-storage  1.57.2+ds1-1
ii  criu                4.1-1
ii  dbus-user-session   1.16.2-2
ii  libcriu2            4.1-1
ii  passt               0.0~git20250320.32f6212-1
ii  slirp4netns         1.2.1-1+b1
ii  uidmap              1:4.17.4-1

Versions of packages podman suggests:
ii  containernetworking-plugins  1.1.1+ds1-3+b15
ii  docker-compose               2.26.1-4
ii  iptables                     1.8.11-2

-- no debconf information