Google Kubernetes Engine

  1. GKE clusters must use Ubuntu OS instead of Container-Optimized OS, in order to satisfy Longhorn open-iscsi dependency.

  2. GKE requires user to manually claim himself as cluster admin to enable RBAC. Before installing Longhorn, run the following command:

kubectl create clusterrolebinding cluster-admin-binding --clusterrole=cluster-admin --user=<>

where is the user's account name in GCE, and it's case sensitive. See this document for more information.