[DCAE] Use global storage templates for PVC

OOM has now templates in order to create the needed PVC, using:

* a PV with a specific class when using a common nfs mount path between
nodes (sames as today use) --> is the default behavior today
* or a storage class if we want to use dynamic PV.
  On this case, we use (in order of priority):
  - persistence.storageClassOverride if set on the chart
  - global.persistence.storageClass if set globally
  - persistence.storageClass if set on the chart

I've also used a "range" for PV creation of redis in order to have only
the needed number.

Change-Id: I6bb326f8aaece11bcf503e9300e5c39a87214f81
Issue-ID: OOM-1227
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>

2 files changed, 32 insertions, 210 deletions

diff --git a/kubernetes/dcaegen2/components/dcae-redis/templates/pv.yaml b/kubernetes/dcaegen2/components/dcae-redis/templates/pv.yaml
index 5573179d87..29026044f1 100644
--- a/kubernetes/dcaegen2/components/dcae-redis/templates/pv.yaml
+++ b/kubernetes/dcaegen2/components/dcae-redis/templates/pv.yaml
@@ -13,215 +13,33 @@
 # # See the License for the specific language governing permissions and
 # # limitations under the License.
 */}}
-{{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) -}}
+{{- $global := . }}
+{{- if and $global.Values.persistence.enabled (not $global.Values.persistence.existingClaim) }}
+{{- if eq "True" (include "common.needPV" .) }}
+{{- range $i := until (int $global.Values.replicaCount)}}
 kind: PersistentVolume
 apiVersion: v1
 metadata:
-  name: {{ include "common.fullname" . }}0
-  namespace: {{ include "common.namespace" . }}
+  name: {{ include "common.fullname" $global }}-data-{{$i}}
+  namespace: {{ include "common.namespace" $global }}
   labels:
-    app: {{ include "common.name" . }}
-    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
-    release: "{{ .Release.Name }}"
-    heritage: "{{ .Release.Service }}"
-    name: {{ include "common.fullname" . }}
+    app: {{ include "common.fullname" $global }}
+    chart: "{{ $global.Chart.Name }}-{{ $global.Chart.Version | replace "+" "_" }}"
+    release: "{{ $global.Release.Name }}"
+    heritage: "{{ $global.Release.Service }}"
+    name: {{ include "common.fullname" $global }}
 spec:
-  storageClassName: manual
   capacity:
-    storage: {{ .Values.persistence.size }}
+    storage: {{ $global.Values.persistence.size}}
   accessModes:
-    - {{ .Values.persistence.accessMode }}
-  persistentVolumeReclaimPolicy: {{ .Values.persistence.volumeReclaimPolicy }}
+    - {{ $global.Values.persistence.accessMode }}
+  persistentVolumeReclaimPolicy: {{ $global.Values.persistence.volumeReclaimPolicy }}
+  storageClassName: "{{ include "common.fullname" $global }}-data"
   hostPath:
-    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ .Release.Name }}/{{ .Values.persistence.mountSubPath }}0
+    path: {{ $global.Values.global.persistence.mountPath | default $global.Values.persistence.mountPath }}/{{ $global.Release.Name }}/{{ $global.Values.persistence.mountSubPath }}-{{$i}}
+{{if ne $i (int $global.Values.replicaCount) }}
 ---
-kind: PersistentVolume
-apiVersion: v1
-metadata:
-  name: {{ include "common.fullname" . }}1
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.name" . }}
-    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
-    release: "{{ .Release.Name }}"
-    heritage: "{{ .Release.Service }}"
-    name: {{ include "common.fullname" . }}
-spec:
-  storageClassName: manual
-  capacity:
-    storage: {{ .Values.persistence.size }}
-  accessModes:
-    - {{ .Values.persistence.accessMode }}
-  persistentVolumeReclaimPolicy: {{ .Values.persistence.volumeReclaimPolicy }}
-  hostPath:
-    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ .Release.Name }}/{{ .Values.persistence.mountSubPath }}1
----
-kind: PersistentVolume
-apiVersion: v1
-metadata:
-  name: {{ include "common.fullname" . }}2
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.name" . }}
-    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
-    release: "{{ .Release.Name }}"
-    heritage: "{{ .Release.Service }}"
-    name: {{ include "common.fullname" . }}
-spec:
-  storageClassName: manual
-  capacity:
-    storage: {{ .Values.persistence.size }}
-  accessModes:
-    - {{ .Values.persistence.accessMode }}
-  persistentVolumeReclaimPolicy: {{ .Values.persistence.volumeReclaimPolicy }}
-  hostPath:
-    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ .Release.Name }}/{{ .Values.persistence.mountSubPath }}2
----
-kind: PersistentVolume
-apiVersion: v1
-metadata:
-  name: {{ include "common.fullname" . }}3
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.name" . }}
-    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
-    release: "{{ .Release.Name }}"
-    heritage: "{{ .Release.Service }}"
-    name: {{ include "common.fullname" . }}
-spec:
-  storageClassName: manual
-  capacity:
-    storage: {{ .Values.persistence.size }}
-  accessModes:
-    - {{ .Values.persistence.accessMode }}
-  persistentVolumeReclaimPolicy: {{ .Values.persistence.volumeReclaimPolicy }}
-  hostPath:
-    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ .Release.Name }}/{{ .Values.persistence.mountSubPath }}3
----
-kind: PersistentVolume
-apiVersion: v1
-metadata:
-  name: {{ include "common.fullname" . }}4
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.name" . }}
-    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
-    release: "{{ .Release.Name }}"
-    heritage: "{{ .Release.Service }}"
-    name: {{ include "common.fullname" . }}
-spec:
-  storageClassName: manual
-  capacity:
-    storage: {{ .Values.persistence.size }}
-  accessModes:
-    - {{ .Values.persistence.accessMode }}
-  persistentVolumeReclaimPolicy: {{ .Values.persistence.volumeReclaimPolicy }}
-  hostPath:
-    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ .Release.Name }}/{{ .Values.persistence.mountSubPath }}4
----
-kind: PersistentVolume
-apiVersion: v1
-metadata:
-  name: {{ include "common.fullname" . }}5
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.name" . }}
-    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
-    release: "{{ .Release.Name }}"
-    heritage: "{{ .Release.Service }}"
-    name: {{ include "common.fullname" . }}
-spec:
-  storageClassName: manual
-  capacity:
-    storage: {{ .Values.persistence.size }}
-  accessModes:
-    - {{ .Values.persistence.accessMode }}
-  persistentVolumeReclaimPolicy: {{ .Values.persistence.volumeReclaimPolicy }}
-  hostPath:
-    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ .Release.Name }}/{{ .Values.persistence.mountSubPath }}5
----
-kind: PersistentVolume
-apiVersion: v1
-metadata:
-  name: {{ include "common.fullname" . }}6
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.name" . }}
-    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
-    release: "{{ .Release.Name }}"
-    heritage: "{{ .Release.Service }}"
-    name: {{ include "common.fullname" . }}
-spec:
-  storageClassName: manual
-  capacity:
-    storage: {{ .Values.persistence.size }}
-  accessModes:
-    - {{ .Values.persistence.accessMode }}
-  persistentVolumeReclaimPolicy: {{ .Values.persistence.volumeReclaimPolicy }}
-  hostPath:
-    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ .Release.Name }}/{{ .Values.persistence.mountSubPath }}6
----
-kind: PersistentVolume
-apiVersion: v1
-metadata:
-  name: {{ include "common.fullname" . }}7
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.name" . }}
-    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
-    release: "{{ .Release.Name }}"
-    heritage: "{{ .Release.Service }}"
-    name: {{ include "common.fullname" . }}
-spec:
-  storageClassName: manual
-  capacity:
-    storage: {{ .Values.persistence.size }}
-  accessModes:
-    - {{ .Values.persistence.accessMode }}
-  persistentVolumeReclaimPolicy: {{ .Values.persistence.volumeReclaimPolicy }}
-  hostPath:
-    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ .Release.Name }}/{{ .Values.persistence.mountSubPath }}7
----
-kind: PersistentVolume
-apiVersion: v1
-metadata:
-  name: {{ include "common.fullname" . }}8
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.name" . }}
-    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
-    release: "{{ .Release.Name }}"
-    heritage: "{{ .Release.Service }}"
-    name: {{ include "common.fullname" . }}
-spec:
-  storageClassName: manual
-  capacity:
-    storage: {{ .Values.persistence.size }}
-  accessModes:
-    - {{ .Values.persistence.accessMode }}
-  persistentVolumeReclaimPolicy: {{ .Values.persistence.volumeReclaimPolicy }}
-  hostPath:
-    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ .Release.Name }}/{{ .Values.persistence.mountSubPath }}8
----
-kind: PersistentVolume
-apiVersion: v1
-metadata:
-  name: {{ include "common.fullname" . }}9
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.name" . }}
-    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
-    release: "{{ .Release.Name }}"
-    heritage: "{{ .Release.Service }}"
-    name: {{ include "common.fullname" . }}
-spec:
-  storageClassName: manual
-  capacity:
-    storage: {{ .Values.persistence.size }}
-  accessModes:
-    - {{ .Values.persistence.accessMode }}
-  persistentVolumeReclaimPolicy: {{ .Values.persistence.volumeReclaimPolicy }}
-  hostPath:
-    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ .Release.Name }}/{{ .Values.persistence.mountSubPath }}9
-
+{{- end -}}
+{{- end -}}
+{{- end -}}
 {{- end -}}
diff --git a/kubernetes/dcaegen2/components/dcae-redis/templates/statefulset.yaml b/kubernetes/dcaegen2/components/dcae-redis/templates/statefulset.yaml
index 5a5b220e61..d5fa6340d3 100644
--- a/kubernetes/dcaegen2/components/dcae-redis/templates/statefulset.yaml
+++ b/kubernetes/dcaegen2/components/dcae-redis/templates/statefulset.yaml
@@ -96,23 +96,27 @@ spec:
       - name: {{ include "common.fullname" . }}-scripts
         configMap:
           name: {{ include "common.fullname" . }}-scripts
-          defaultMode: 0755 
+          defaultMode: 0755
       - name: localtime
         hostPath:
           path: /etc/localtime
+      {{- if not .Values.persistence.enabled }}
+      - name: {{ include "common.fullname" . }}-data
+        emptyDir: {}
+      {{- end }}
       imagePullSecrets:
       - name: "{{ include "common.namespace" . }}-docker-registry-key"
+  {{- if .Values.persistence.enabled }}
   volumeClaimTemplates:
   - metadata:
       name: {{ include "common.fullname" . }}-data
       labels:
-        name: {{ include "common.fullname" . }}      
+        name: {{ include "common.fullname" . }}
     spec:
-      accessModes: [ {{ .Values.persistence.accessMode }} ]
-      storageClassName: manual
+      accessModes:
+      - {{ .Values.persistence.accessMode | quote }}
+      storageClassName: {{ include "common.storageClass" . }}
       resources:
         requests:
-          storage: {{ .Values.persistence.size }}
-      selector:
-        matchLabels:
-          name: {{ include "common.fullname" . }}
+          storage: {{ .Values.persistence.size | quote}}
+  {{- end }}