conflicting log-opts and logrotate config?

[mwennrich]

see gardener/gardener-extension-os-suse-chost#8
gardener/gardener-extension-os-suse-chost#6

[mreiger]

The os-metal-extension PR #15 deletes the log rotation settings from docker's daemon.json file, but the reload of the docker daemon apparently does not happen?

(Maybe it does after all; the timestamps seem to indicate that:

root@shoot--p6qzcn--mrei-dev-group-0-7cdcc-v2wkz:~# systemctl status docker
● docker.service - Docker Application Container Engine
     Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
     Active: active (running) since Tue 2021-06-01 20:57:58 CEST; 8min ago
TriggeredBy: ● docker.socket
       Docs: https://docs.docker.com
   Main PID: 21302 (dockerd)
      Tasks: 40
     Memory: 61.3M
     CGroup: /system.slice/docker.service
             └─21302 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock

Jun 01 20:57:58 shoot--p6qzcn--mrei-dev-group-0-7cdcc-v2wkz dockerd[21302]: time="2021-06-01T20:57:58.334608785+02:00" level=warning msg="Your kernel does not support cgroup blkio weight_device"
Jun 01 20:57:58 shoot--p6qzcn--mrei-dev-group-0-7cdcc-v2wkz dockerd[21302]: time="2021-06-01T20:57:58.334758478+02:00" level=info msg="Loading containers: start."
Jun 01 20:57:58 shoot--p6qzcn--mrei-dev-group-0-7cdcc-v2wkz dockerd[21302]: time="2021-06-01T20:57:58.335984518+02:00" level=error msg="failed to load container mount" container=4f2c335d68823a9eedb739c4a19b9cec2a36c031c2c04a4d74d5213f0470df6c error="mount does not exist"
Jun 01 20:57:58 shoot--p6qzcn--mrei-dev-group-0-7cdcc-v2wkz dockerd[21302]: time="2021-06-01T20:57:58.545150730+02:00" level=info msg="Default bridge (docker0) is assigned with an IP address 172.17.0.0/16. Daemon option --bip can be used to set a preferred IP address"
Jun 01 20:57:58 shoot--p6qzcn--mrei-dev-group-0-7cdcc-v2wkz dockerd[21302]: time="2021-06-01T20:57:58.634689303+02:00" level=info msg="Loading containers: done."
Jun 01 20:57:58 shoot--p6qzcn--mrei-dev-group-0-7cdcc-v2wkz dockerd[21302]: time="2021-06-01T20:57:58.657436245+02:00" level=info msg="Docker daemon" commit=8728dd2 graphdriver(s)=overlay2 version=20.10.6
Jun 01 20:57:58 shoot--p6qzcn--mrei-dev-group-0-7cdcc-v2wkz dockerd[21302]: time="2021-06-01T20:57:58.657493597+02:00" level=info msg="Daemon has completed initialization"
Jun 01 20:57:58 shoot--p6qzcn--mrei-dev-group-0-7cdcc-v2wkz systemd[1]: Started Docker Application Container Engine.
Jun 01 20:57:58 shoot--p6qzcn--mrei-dev-group-0-7cdcc-v2wkz dockerd[21302]: time="2021-06-01T20:57:58.681011762+02:00" level=info msg="API listen on /run/docker.sock"
Jun 01 20:57:59 shoot--p6qzcn--mrei-dev-group-0-7cdcc-v2wkz dockerd[21302]: time="2021-06-01T20:57:59.480427762+02:00" level=info msg="ignoring event" container=8fb9df018bfa4040777bbe237308023f816f6e5773f4353595bcb476dcfe28b8 module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
root@shoot--p6qzcn--mrei-dev-group-0-7cdcc-v2wkz:~# ls -l /etc/docker/
total 8
-rw-r--r-- 1 root root  89 Jun  1 20:57 daemon.json
-rw------- 1 root root 244 Jun  1 20:51 key.json