How to show logs from OCI container or where to find them?

Incus
,
1

Sometimes my OCI container fails on start and I want to know why.

incus info --show-log netbird-coturn

is not that useful, or what I missing?

lxc netbird-coturn 20260119202521.956 WARN     cgfsng - ../src/lxc/cgroups/cgfsng.c:__cgroup_tree_create:747 - File exists - Creating the final cgroup 10(lxc.monitor.netbird-coturn) failed
lxc netbird-coturn 20260119202521.956 WARN     cgfsng - ../src/lxc/cgroups/cgfsng.c:cgroup_tree_create:807 - File exists - Failed to create monitor cgroup 10(lxc.monitor.netbird-coturn)
lxc netbird-coturn 20260119202521.969 ERROR    utils - ../src/lxc/utils.c:safe_mount:1334 - Invalid argument - Failed to mount "none" onto "/opt/incus/lib/lxc/rootfs/run"

Thank you.

2

I don’t think that any of that is actually fatal.
Does incus console --show-log netbird-coturn show something more useful?

3

The entrypoint called script which didn’t exist. I had to debug it within the container. So I wondered if there is some way to see the actual errors if container fails to start.

incus console --show-log netbird-coturn is empty for this one.

4

Sometimes starting the container like this:

incus start netbird-coturn –console prints interesting details too.

In some cases the containers fails to early to print anything into the logs.

1 Like
5

You could try looking at /var/log/incus/netbird-coturn/console.log.