Merge branch '706_events_rentention' into 'master'

Increase k3s event retention from 1h to 2d

See merge request openappstack/openappstack!356

ansible/group_vars/all/oas.yml

@@ -51,7 +51,10 @@ hydra_system_secret: "{{ lookup('password', '{{ cluster_dir }}/secrets/hydra_sys
 k3s:
   version: 'v1.20.4+k3s1'
   # args to start the k3s server with
-  server_args: '--disable traefik --disable local-storage --disable servicelb'
+  # https://rancher.com/docs/k3s/latest/en/installation/install-options/server-config/
+  # kubelet arguments can be passed with `--kubelet-arg`
+  # https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet/
+  server_args: '--disable traefik --disable local-storage --disable servicelb --kube-apiserver-arg=event-ttl=48h0m0s'
 
 helm:
   # helm snap 2.15.0 and 2.15.1 broke for us