Longhorn CSI on GKE
To operate Longhorn on a cluster provisioned with Google Kubernetes Engine, some additional configuration is required.
GKE clusters must use the Ubuntu OS instead of Container-Optimized OS, in order to satisfy Longhorn’s open-iscsi dependency.
GKE requires a user to manually claim themselves as cluster admin to enable role-based access control. Before installing Longhorn, run the following command:
kubectl create clusterrolebinding cluster-admin-binding --clusterrole=cluster-admin --user=<email@example.com>
where firstname.lastname@example.org is the user’s account name in GCE. It’s case sensitive. See this document for more information.
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