Upgraded Octopus from 2019.10.5 today to 2020.2.14 and have lost the ability to communicate with our GKE Clusters. Everything was working fine before the update, but no longer.
I have them listed as “Unhealthy” rather than offline. Trying to run a health check or upgrade Calamari on them results in an error message about not being able to find kubectl:
NotSpecified: Could not find kubectl. Make sure kubectl is on the PATH. See https://g.octopushq.com/KubernetesTarget for more information.
Any ideas on how I can resolve this? I’ve tried removing and re-adding the clusters, updating the master node on GKE to the latest version, and checked all firewall settings, but haven’t been able to get a different response. Possible bug in this latest version?