Longhorn v0.4.0 release changes: csi image modification support

proposed/longhorn/latest/questions.yml

@@ -20,6 +20,23 @@ questions:
     description: "Leave blank to autodetect. For RKE, use `/var/lib/kubelet/volumeplugins`. For GKE, use `/home/kubernetes/flexvolume/` instead. Users can find the correct directory by running `ps aux|grep kubelet` on the host and check the --volume-plugin-dir parameter.  If there is none, the default `/usr/libexec/kubernetes/kubelet-plugins/volume/exec/` will be used."
     type: string
     label: Longhorn Flexvolume Path
+  show_subquestion_if: csi
+  subquestions:
+  - variable: csi.attacherImage
+    default:
+    description: "Specify CSI attacher image. Leave blank to autodetect."
+    type: string
+    label: Longhorn CSI Attacher Image
+  - variable: csi.provisionerImage
+    default:
+    description: "Specify CSI provisioner image. Leave blank to autodetect."
+    type: string
+    label: Longhorn CSI Provisioner Image
+  - variable: csi.driverRegistrarImage
+    default:
+    description: "Specify CSI Driver Registrar image. Leave blank to autodetect."
+    type: string
+    label: Longhorn CSI Driver Registrar Image
 - variable: persistence.defaultClass
   default: "true"
   description: "Set as default StorageClass"

proposed/longhorn/latest/templates/deployment-driver.yaml

@@ -46,4 +46,16 @@ spec:
                 fieldPath: spec.serviceAccountName
           - name: FLEXVOLUME_DIR
             value: {{ .Values.persistence.flexvolumePath }}
+          {{- if .Values.csi.attacherImage }}
+          - name: CSI_ATTACHER_IMAGE
+            value: {{ .Values.csi.attacherImage }}
+          {{- end }}
+          {{- if .Values.csi.provisionerImage }}
+          - name: CSI_PROVISIONER_IMAGE
+            value: {{ .Values.csi.provisionerImage }}
+          {{- end }}
+          {{- if .Values.csi.driverRegistrarImage }}
+          - name: CSI_DRIVER_REGISTRAR_IMAGE
+            value: {{ .Values.csi.driverRegistrarImage }}
+          {{- end }}
       serviceAccountName: longhorn-service-account

proposed/longhorn/latest/values.yaml

@@ -28,6 +28,11 @@ persistence:
   flexvolumePath:
   defaultClass: true
 
+csi:
+  attacherImage:
+  provisionerImage:
+  driverRegistrarImage:
+
 resources: {}
   # We usually recommend not to specify default resources and to leave this as a conscious
   # choice for the user. This also increases chances charts run on environments with little