[stage-5] improve jenkins helm chart, add scripts for jenkins pipeline

k8s/helm/jenkins/templates/volume.yaml

@@ -3,17 +3,15 @@ apiVersion: v1
 kind: PersistentVolume
 metadata:
   name: jenkins-pv-volume
-  labels:
-    type: local
 spec:
   storageClassName: manual
   claimRef:
     name: jenkins-pv-claim
-    namespace: devops-tools
+    namespace: {{ .Values.namespace }}
   capacity:
     storage: 10Gi
   accessModes:
-    - ReadWriteOnce
+    - ReadWriteMany
   hostPath:
     path: /mnt/jenkins
   nodeAffinity:
@@ -31,11 +29,11 @@ apiVersion: v1
 kind: PersistentVolumeClaim
 metadata:
   name: jenkins-pv-claim
-  namespace: devops-tools
+  namespace: {{ .Values.namespace }}
 spec:
-  storageClassName: local-storage
+  storageClassName: manual
   accessModes:
-    - ReadWriteOnce
+    - ReadWriteMany
   resources:
     requests:
       storage: 3Gi