chart: csi attacher and provisioner replica count became configurable

chart/questions.yml

@@ -42,6 +42,20 @@ questions:
     description: "Specify kubelet root-dir. Leave blank to autodetect."
     type: string
     label: Kubelet Root Directory
+  - variable: csi.attacherReplicaCount
+    type: int
+    default:
+    min: 1
+    max: 10
+    description: "Specify number of CSI Attacher replica. By default 3."
+    label: Longhorn CSI Attacher replica count
+  - variable: csi.provisionerReplicaCount
+    type: int
+    default:
+    min: 1
+    max: 10
+    description: "Specify number of CSI Provisioner replica. By default 3."
+    label: Longhorn CSI Provisioner replica count
 - variable: persistence.defaultClass
   default: "true"
   description: "Set as default StorageClass"

chart/templates/deployment-driver.yaml

@@ -62,4 +62,12 @@ spec:
           - name: CSI_DRIVER_REGISTRAR_IMAGE
             value: {{ .Values.csi.driverRegistrarImage }}
           {{- end }}
+          {{- if .Values.csi.attacherReplicaCount }}
+          - name: CSI_ATTACHER_REPLICA_COUNT
+            value: "{{ .Values.csi.attacherReplicaCount }}"
+          {{- end }}
+          {{- if .Values.csi.provisionerReplicaCount }}
+          - name: CSI_PROVISIONER_REPLICA_COUNT
+            value: "{{ .Values.csi.provisionerReplicaCount }}"
+          {{- end }}
       serviceAccountName: longhorn-service-account

chart/values.yaml

@@ -33,6 +33,8 @@ csi:
   provisionerImage:
   driverRegistrarImage:
   kubeletRootDir:
+  attacherReplicaCount:
+  provisionerReplicaCount:
 
 resources: {}
   # We usually recommend not to specify default resources and to leave this as a conscious