Add windows driver installation support

This PR adds windows driver support. It adds a windows base dir to
install base yaml files. It also adds a windows alpha kustomization
file. To install driver for windows, first set env
NODE_OS=windows and GCE_PD_DRIVER_VERSION=alpha and run
deploy/kubernetes/deploy-driver.sh script.

This PR also reorgnize the dir structure for linux version. Now under
overlay, we have a linux and a windows dir. Under each of them, we have
alpha, stable, etc. Currently windows only has alpha version.

Author: jingxu97

deploy/kubernetes/base/node.yaml

@@ -15,21 +15,14 @@ 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
+      # metrics ports. But hostNetwork is not working for Windodws, might be an issue
+      # when deploying on GKE windows node. See related issue https://buganizer.corp.google.com/issues/156382455
+      # hostNetwork: true
       priorityClassName: csi-gce-pd-node
       serviceAccountName: csi-gce-pd-node-sa
       containers:
         - name: csi-driver-registrar
           image: gke.gcr.io/csi-node-driver-registrar
-          args:
-            - "--v=5"
-            - "--csi-address=/csi/csi.sock"
-            - "--kubelet-registration-path=/var/lib/kubelet/plugins/pd.csi.storage.gke.io/csi.sock"
-          lifecycle:
-            preStop:
-              exec:
-                command: ["/bin/sh", "-c", "rm -rf /registration/pd.csi.storage.gke.io /registration/pd.csi.storage.gke.io-reg.sock"]
           env:
             - name: KUBE_NODE_NAME
               valueFrom:
@@ -41,34 +34,11 @@ spec:
             - name: registration-dir
               mountPath: /registration
         - name: gce-pd-driver
-          securityContext:
-            privileged: true
-          # Don't change base image without changing pdImagePlaceholder in
-          # test/k8s-integration/main.go
           image: gke.gcr.io/gcp-compute-persistent-disk-csi-driver
           args:
             - "--v=5"
             - "--endpoint=unix:/csi/csi.sock"
           volumeMounts:
-            - name: kubelet-dir
-              mountPath: /var/lib/kubelet
-              mountPropagation: "Bidirectional"
-            - name: plugin-dir
-              mountPath: /csi
-            - name: device-dir
-              mountPath: /dev
-            # The following mounts are required to trigger host udevadm from
-            # container
-            - name: udev-rules-etc
-              mountPath: /etc/udev
-            - name: udev-rules-lib
-              mountPath: /lib/udev
-            - name: udev-socket
-              mountPath: /run/udev
-            - name: sys
-              mountPath: /sys
-      nodeSelector:
-        kubernetes.io/os: linux
       volumes:
         - name: registration-dir
           hostPath:
@@ -82,28 +52,6 @@ spec:
           hostPath:
             path: /var/lib/kubelet/plugins/pd.csi.storage.gke.io/
             type: DirectoryOrCreate
-        - name: device-dir
-          hostPath:
-            path: /dev
-            type: Directory
-        # The following mounts are required to trigger host udevadm from
-        # container
-        - name: udev-rules-etc
-          hostPath:
-            path: /etc/udev
-            type: Directory
-        - name: udev-rules-lib
-          hostPath:
-            path: /lib/udev
-            type: Directory
-        - name: udev-socket
-          hostPath:
-            path: /run/udev
-            type: Directory
-        - name: sys
-          hostPath:
-            path: /sys
-            type: Directory
       # https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/
       # See "special case". This will tolerate everything. Node component should
       # be scheduled on all nodes.

deploy/kubernetes/delete-driver.sh

@@ -13,11 +13,12 @@ set -o errexit
 readonly NAMESPACE="${GCE_PD_DRIVER_NAMESPACE:-gce-pd-csi-driver}"
 readonly DEPLOY_VERSION="${GCE_PD_DRIVER_VERSION:-stable}"
 readonly PKGDIR="${GOPATH}/src/sigs.k8s.io/gcp-compute-persistent-disk-csi-driver"
+readonly OS="${OS:-linux}"
 source "${PKGDIR}/deploy/common.sh"
 
 ensure_kustomize
 
-${KUSTOMIZE_PATH} build ${PKGDIR}/deploy/kubernetes/overlays/${DEPLOY_VERSION} | ${KUBECTL} delete -v="${VERBOSITY}" --ignore-not-found -f -
+${KUSTOMIZE_PATH} build ${PKGDIR}/deploy/kubernetes/overlays/${OS}/${DEPLOY_VERSION} | ${KUBECTL} delete -v="${VERBOSITY}" --ignore-not-found -f -
 ${KUBECTL} delete secret cloud-sa -v="${VERBOSITY}" --ignore-not-found
 
 if [[ ${NAMESPACE} != "" && ${NAMESPACE} != "default" ]] && \

deploy/kubernetes/deploy-driver.sh

@@ -19,6 +19,7 @@ set -x
 readonly NAMESPACE="${GCE_PD_DRIVER_NAMESPACE:-gce-pd-csi-driver}"
 readonly DEPLOY_VERSION="${GCE_PD_DRIVER_VERSION:-stable}"
 readonly PKGDIR="${GOPATH}/src/sigs.k8s.io/gcp-compute-persistent-disk-csi-driver"
+readonly OS="${OS:-linux}"
 source "${PKGDIR}/deploy/common.sh"
 
 print_usage()
@@ -51,7 +52,7 @@ function check_service_account()
 	# Grepping for a line with client email returning anything quoted after the colon
 	readonly IAM_NAME=$(grep -Po '"client_email": *\K"[^"]*"' ${GCE_PD_SA_DIR}/cloud-sa.json | tr -d '"')
 	readonly PROJECT=$(grep -Po '"project_id": *\K"[^"]*"' ${GCE_PD_SA_DIR}/cloud-sa.json | tr -d '"')
-	readonly GOTTEN_BIND_ROLES=$(gcloud projects get-iam-policy ${PROJECT} --flatten="bindings[].members" --format='table(bindings.role)' --filter="bindings.members:${IAM_NAME}")
+	readonly GOTTEN_BIND_ROLES=$(gcloud projects get-iam-policy $PROJECT --flatten="bindings[].members" --format='table(bindings.role)' --filter="bindings.members:${IAM_NAME}")
 	readonly BIND_ROLES=$(get_needed_roles)
 	MISSING_ROLES=false
 	for role in ${BIND_ROLES}
@@ -95,6 +96,6 @@ fi
 ${KUBECTL} version
 
 readonly tmp_spec=/tmp/gcp-compute-persistent-disk-csi-driver-specs-generated.yaml
-${KUSTOMIZE_PATH} build ${PKGDIR}/deploy/kubernetes/overlays/${DEPLOY_VERSION} | tee $tmp_spec
+${KUSTOMIZE_PATH} build ${PKGDIR}/deploy/kubernetes/overlays/${OS}/${DEPLOY_VERSION} | tee $tmp_spec
 ${KUBECTL} apply -v="${VERBOSITY}" -f $tmp_spec
 

deploy/kubernetes/overlays/linux/alpha/WARNING.md

@@ -0,0 +1,3 @@
+WARNING: DO NOT USE THE ALPHA VERSION OF THE DRIVER FOR PRODUCTION
+
+Alpha features are unsupported and may be unstable and have breaking changes across releases.

deploy/kubernetes/overlays/linux/alpha/kustomization.yaml

@@ -0,0 +1,5 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+bases:
+- ../stable
+