Deploy driver with hostNetwork to fix interaction with GKE Workload Identity

Author: davidz627

deploy/kubernetes/base/controller.yaml

@@ -13,6 +13,11 @@ spec:
       labels:
         app: gcp-compute-persistent-disk-csi-driver
     spec:
+      # Host network must be used for interaction with Workload Identity in GKE
+      # since it replaces GCE Metadata Server with GKE Metadata Server. Remove
+      # this requirement when issue is resolved and before any exposure of
+      # metrics ports
+      hostNetwork: true
       serviceAccountName: csi-controller-sa
       priorityClassName: gce-pd-csi-driver-controller
       containers: