chore(chart): adding hooks configuration to chart (#121)

* updating provisioner to load hook configuration from pre-defined file '/etc/nfs-provisioner'

Signed-off-by: mayank <mayank.patel@mayadata.io>

Author: mynktl

deploy/helm/charts/Chart.yaml

@@ -4,7 +4,7 @@ description: Helm chart for OpenEBS Dynamic NFS PV. For instructions to install
 type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
-version: 0.7.2
+version: 0.7.3
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application.
 appVersion: 0.7.1

deploy/helm/charts/README.md

@@ -130,6 +130,7 @@ helm install openebs-nfs openebs-nfs/nfs-provisioner --namespace openebs --creat
 | `nfsProvisioner.nfsServerNamespace`          | NFS server namespace         | `"openebs"`                            |
 | `nfsProvisioner.nfsServerNodeAffinity`       | NFS Server node affinity rules                | `""`                          |
 | `nfsProvisioner.nfsBackendPvcTimeout`       | Timeout for backend PVC binding in seconds                | `"60"`                          |
+| `nfsProvisioner.nfsHookConfigMap`       | Existing Configmap name to load hook configuration                | `""`                          |
 | `nfsStorageClass.backendStorageClass` | StorageClass to be used to provision the backend volume. If not specified, the default StorageClass is used. | `""`                         |
 | `nfsStorageClass.isDefaultClass`      | Make 'openebs-kernel-nfs' the default StorageClass | `"false"`                         |
 | `nfsStorageClass.reclaimPolicy`       | ReclaimPolicy for NFS PVs                      | `"Delete"`                     |

deploy/helm/charts/templates/deployment.yaml

@@ -121,6 +121,19 @@ spec:
                 - test `pgrep "^provisioner-nfs.*"` = 1
             initialDelaySeconds: {{ .Values.nfsProvisioner.healthCheck.initialDelaySeconds }}
             periodSeconds: {{ .Values.nfsProvisioner.healthCheck.periodSeconds }}
+          volumeMounts:
+            # Mounting hook-config volume into nfs-provisioner config directory
+            {{- if .Values.nfsProvisioner.nfsHookConfigMap }}
+            - name: hook-config
+              mountPath: /etc/nfs-provisioner
+            {{- end }}
+      volumes:
+        # hook-config volume uses ConfigMap 'hook-config' to load hook configuration
+        {{- if .Values.nfsProvisioner.nfsHookConfigMap }}
+        - name: hook-config
+          configMap:
+            name: {{ .Values.nfsProvisioner.nfsHookConfigMap }}
+        {{- end }}
 {{- if .Values.nfsProvisioner.nodeSelector }}
       nodeSelector:
 {{ toYaml .Values.nfsProvisioner.nodeSelector | indent 8 }}

deploy/helm/charts/values.yaml

@@ -81,6 +81,11 @@ nfsProvisioner:
   # - If NFS Server needs to be placed only on storage nodes & nfs nodes then
   #   value can be: "kubernetes.io/storage-node,kubernetes.io/nfs-node"
   # nfsServerNodeAffinity: "kubernetes.io/storage-node,kubernetes.io/nfs-node"
+  #
+  # nfsHookConfigMap represent the ConfigMap name to be used for hook configuration.
+  # By default, nfsHookConfigMap is set to empty.
+  # If nfsHookConfigMap is set then chart will mount the configmap using volume, named `hook-config`
+  nfsHookConfigMap: ""
 
 nfsStorageClass:
   name: openebs-kernel-nfs