I am trying to create GKE Autopilot cluster and the creation fails. I see just this error. "All cluster resources were brought up, but: 1 nodes out of 1 are unhealthy". Not sure if there are other logs that can provide more specific details. I tried creating a standard cluster and it worked. I added the firewall rules for Google Composer set up. The composer set up was failing as well.
1 Answer
There is a public documentation on this issue mentioning potential causes and possible solutions.
As per my understanding, and also considering the error message where it's failing after 83%. I suspect possibly automatically created firewall rules for ingress may have been either deleted or modified. If you check out this documentation, understand the purpose as this permits health checks of a NodePort Service or network endpoint group (NEG). Also, reconfigured DNS for *.gcr.io. would also result in the same time of issue. Therefore, I suggest carefully check each and every point.