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We are using podman & buildah on our self-hosted GitHub runners to run and build containers. Since we started this >1 year ago, we always had lingering enabled to have correctly working user sessions for pull secrets and other stuff.
At some point in the past weeks, there must have been a change regarding systemd and cgroups, since we suddenly started to get warnings about a missing user session, remarkably the output always appears multiple times.
It looks like this:
$ /bin/buildah version
time="2024-04-08T15:05:09+02:00" level=warning msg="The cgroupv2 manager is set to systemd but there is no systemd user session available"
time="2024-04-08T15:05:09+02:00" level=warning msg="For using systemd, you may need to log in using a user session"
time="2024-04-08T15:05:09+02:00" level=warning msg="Alternatively, you can enable lingering with: `loginctl enable-linger 1001` (possibly as root)"
time="2024-04-08T15:05:09+02:00" level=warning msg="Falling back to --cgroup-manager=cgroupfs"
Version: 1.35.1
Go Version: go1.21.7 (Red Hat 1.21.7-1.el9)
Image Spec: 1.1.0
Runtime Spec: 1.1.0
CNI Spec: 1.0.0
libcni Version: v1.1.2
image Version: 5.30.0
Git Commit:
Built: Tue Mar 19 13:37:29 2024
OS/Arch: linux/amd64
BuildPlatform: linux/amd64
$ /bin/buildah bud -f /home/github/runner_0/_work/project/Dockerfile --format docker --tls-verify=true --layers=false --ulimit=nofile=262144:262144 -v=/home/github/cache/go:/go/pkg/mod:shared,rw -t registry/image:main /home/github/runner_0/_work/project
time="2024-04-08T15:05:09+02:00" level=warning msg="The cgroupv2 manager is set to systemd but there is no systemd user session available"
time="2024-04-08T15:05:09+02:00" level=warning msg="For using systemd, you may need to log in using a user session"
time="2024-04-08T15:05:09+02:00" level=warning msg="Alternatively, you can enable lingering with: `loginctl enable-linger 1001` (possibly as root)"
time="2024-04-08T15:05:09+02:00" level=warning msg="Falling back to --cgroup-manager=cgroupfs"
time="2024-04-08T15:05:09+02:00" level=warning msg="The cgroupv2 manager is set to systemd but there is no systemd user session available"
time="2024-04-08T15:05:09+02:00" level=warning msg="For using systemd, you may need to log in using a user session"
time="2024-04-08T15:05:09+02:00" level=warning msg="Alternatively, you can enable lingering with: `loginctl enable-linger 1001` (possibly as root)"
time="2024-04-08T15:05:09+02:00" level=warning msg="Falling back to --cgroup-manager=cgroupfs"
[1/2] STEP 1/6: FROM golang:1.22-alpine AS builder
...
The builds are done via a separate non-root user, that doesn't have a user session, only a systemd service for the GitHub agent. But we enabled lingering, I can also confirm this when connecting via SSH and checking as root:
sudo -u test buildah version => warnings still appear
Describe the results you received:
Multiple messages like these - two for buildah build, one for buildah version:
time="2024-04-08T15:05:09+02:00" level=warning msg="The cgroupv2 manager is set to systemd but there is no systemd user session available"
time="2024-04-08T15:05:09+02:00" level=warning msg="For using systemd, you may need to log in using a user session"
time="2024-04-08T15:05:09+02:00" level=warning msg="Alternatively, you can enable lingering with: `loginctl enable-linger 1001` (possibly as root)"
time="2024-04-08T15:05:09+02:00" level=warning msg="Falling back to --cgroup-manager=cgroupfs"
BUG REPORT INFORMATION
Description
We are using podman & buildah on our self-hosted GitHub runners to run and build containers. Since we started this >1 year ago, we always had lingering enabled to have correctly working user sessions for pull secrets and other stuff.
At some point in the past weeks, there must have been a change regarding systemd and cgroups, since we suddenly started to get warnings about a missing user session, remarkably the output always appears multiple times.
It looks like this:
The builds are done via a separate non-root user, that doesn't have a user session, only a systemd service for the GitHub agent. But we enabled lingering, I can also confirm this when connecting via SSH and checking as root:
I could also reproduce the issue on my local Fedora 39 setup.
Steps to reproduce the issue:
On Fedora/RHEL-based systems:
sudo useradd test
sudo -u test buildah version
=> creates warningsudo loginctl enable-linger 1001 && sudo loginctl user-status 1001
=> lingering enabledsudo -u test buildah version
=> warnings still appearDescribe the results you received:
Multiple messages like these - two for
buildah build
, one forbuildah version
:Describe the results you expected:
None of the warnings
Output of
rpm -q buildah
orapt list buildah
:Output of
buildah version
:Output of
podman version
if reporting apodman build
issue:Output of
cat /etc/*release
:Output of
uname -a
:Output of
cat /etc/containers/storage.conf
:The text was updated successfully, but these errors were encountered: