reminder: rootless, rawhide: spurious warnings

[edsantiago]

Just a reminder that gating tests are broken for rootless on rawhide due to spurious warning messages:

$ podman images
WARN[0000] The cgroups manager is set to systemd but there is no systemd user session available
WARN[0000] For using systemd, you may need to login using an 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
REPOSITORY   TAG   IMAGE ID   CREATED   SIZE

It seems possible that this is an unintended side effect of #4352. This is something for @vrothberg to look at once he's back. I'm filing issue so it doesn't get forgotten.

First build showing this problem: ca4c24c

[mheon]

Why are we printing warning messages again? I remember fixing that.

[edsantiago]

@mheon I believe it is a side effect of the config-parsing changes in #4352

[mheon]

I think it's the code in the init() block in main_local.go. It's running before we properly set log level.

We should investigate moving it into Before() which contains most of our init logic.

[vrothberg]

I suggest removing the config generation entirely, see #4457.

[edsantiago]

Followup: #4457 seems to have fixed the spurious warning messages, thank you. But gating tests are now failing rootless with:

$ podman run --rm quay.io/libpod/alpine_labels:latest /bin/true
time="2019-11-06T12:51:29Z" level=error msg="oci runtime \"runc\" does not support CGroups V2: use system migrate to mitigate"
Error: this version of runc doesn't work on cgroups v2: OCI runtime error

It'll take me a little while to look into it; am commenting simply in case it elicits an "aha" in anyone.

[vrothberg]

Great, happy we could tackle it so quickly!

It'll take me a little while to look into it; am commenting simply in case it elicits an "aha" in anyone.

@edsantiago did this work before? I think we have two options: 1) force the gating tests to use crun or 2) force crun in the config.Config logic. Cc @mheon

[edsantiago]

Before what? :-/ Gating tests were passing in 1e750f7, October 31, and I'm pretty sure that was with crun.

[vrothberg]

@edsantiago, the error message indicates that we're running runc. I don't know how these tests are run, so I wonder what has changed. Let's make it a PS?