RancherConnectionLost

This alers pops up when the rancher cluster agent loses connectivity with the rancher server. As a result, the client zone will be seen as unavailable in the rancher WebUI.

Solution

The logs on the affected client zone should be analyzed first in order to try to identify a root cause (cluster agent logs, events). Finally, the rancher cluster agent pods on the affected client zones should be restarted

On the affected client zone:

kubectl -n cattle-system get pods
kubectl -n cattle-system get events

For each of the pods shown:

kubectl -n cattle-system describe  pod cattle-cluster-agent-XXXXX
kubectl -n cattle-system delete pod cattle-cluster-agent-XXXXX