Add support for node existing service accounts

Makefile

@@ -158,3 +158,4 @@ generate-kustomize: bin/helm
 	cd charts/aws-ebs-csi-driver && ../../bin/helm template kustomize . -s templates/rolebinding-snapshot-controller-leaderelection.yaml -f ../../deploy/kubernetes/values/snapshotter.yaml > ../../deploy/kubernetes/overlays/alpha/rbac_add_snapshot_controller_leaderelection_rolebinding.yaml
 	cd charts/aws-ebs-csi-driver && ../../bin/helm template kustomize . -s templates/serviceaccount-snapshot-controller.yaml -f ../../deploy/kubernetes/values/snapshotter.yaml > ../../deploy/kubernetes/overlays/alpha/serviceaccount-snapshot-controller.yaml
 	cd charts/aws-ebs-csi-driver && ../../bin/helm template kustomize . -s templates/statefulset.yaml -f ../../deploy/kubernetes/values/snapshotter.yaml > ../../deploy/kubernetes/overlays/alpha/snapshot_controller.yaml
+	cd charts/aws-ebs-csi-driver && ../../bin/helm template kustomize . -s templates/serviceaccount-csi-node.yaml > ../../deploy/kubernetes/base/serviceaccount-csi-node.yaml

charts/aws-ebs-csi-driver/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: "0.9.0"
 name: aws-ebs-csi-driver
 description: A Helm chart for AWS EBS CSI Driver
-version: 0.9.2
+version: 0.9.3
 kubeVersion: ">=1.17.0-0"
 home: https://github.com/kubernetes-sigs/aws-ebs-csi-driver
 sources:

charts/aws-ebs-csi-driver/templates/node.yaml

@@ -35,6 +35,7 @@ spec:
 {{ toYaml . | indent 8 }}
         {{- end }}
       hostNetwork: true
+      serviceAccountName: {{ .Values.serviceAccount.node.name }}
       priorityClassName: system-node-critical
       tolerations:
         {{- if .Values.node.tolerateAllTaints }}

charts/aws-ebs-csi-driver/templates/serviceaccount-csi-node.yaml

@@ -0,0 +1,12 @@
+{{- if .Values.serviceAccount.node.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ .Values.serviceAccount.node.name }}
+  namespace: kube-system
+  labels:
+    {{- include "aws-ebs-csi-driver.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.node.annotations }}
+  annotations: {{ toYaml . | nindent 4 }}
+  {{- end }}
+{{- end -}}

charts/aws-ebs-csi-driver/values.yaml

@@ -101,6 +101,10 @@ serviceAccount:
     create: true
     name: ebs-snapshot-controller
     annotations: {}
+  node:
+    create: true
+    name: ebs-csi-node-sa
+    annotations: {}
 
 storageClasses: []
 # Add StorageClass resources like:

deploy/kubernetes/base/kustomization.yaml

@@ -10,3 +10,4 @@ resources:
 - csidriver.yaml
 - node.yaml
 - serviceaccount-csi-controller.yaml
+- serviceaccount-csi-node.yaml

deploy/kubernetes/base/node.yaml

@@ -31,6 +31,7 @@ spec:
       nodeSelector:
         kubernetes.io/os: linux
       hostNetwork: true
+      serviceAccountName: ebs-csi-node-sa
       priorityClassName: system-node-critical
       tolerations:
         - operator: Exists

deploy/kubernetes/base/serviceaccount-csi-node.yaml

@@ -0,0 +1,9 @@
+---
+# Source: aws-ebs-csi-driver/templates/serviceaccount-csi-node.yaml
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: ebs-csi-node-sa
+  namespace: kube-system
+  labels:
+    app.kubernetes.io/name: aws-ebs-csi-driver