[AAF] 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 modified statefulset deployment so they can use their own PVC
instead of writing into a specific directory inside

I've also set to 'emptyDir' volumes when persistence is not enabled
(except for aaf-config-pvc and aaf-status-pvc, which means that AAF will
still not work when persistence is disabled).

Change-Id: I05f133f058ebd9678df9ac0b7ef32bb43689e94f
Issue-ID: OOM-1227
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>

4 files changed, 18 insertions, 25 deletions

diff --git a/kubernetes/aaf/charts/aaf-hello/templates/aaf-hello-pv.yaml b/kubernetes/aaf/charts/aaf-hello/templates/aaf-hello-pv.yaml
index 066bf38f2f..af82689ef2 100644
--- a/kubernetes/aaf/charts/aaf-hello/templates/aaf-hello-pv.yaml
+++ b/kubernetes/aaf/charts/aaf-hello/templates/aaf-hello-pv.yaml
@@ -1,4 +1,6 @@
+{{- if ne 0 (int .Values.global.aaf.hello.replicas) }}
 {{- if and .Values.global.persistence.enabled (not .Values.persistence.existingClaim) -}}
+{{- if eq "True" (include "common.needPV" .) -}}
 #########
 ##  ============LICENSE_START====================================================
 ##  org.onap.aaf
@@ -37,12 +39,8 @@ spec:
     - {{ .Values.persistence.config.accessMode }}
   persistentVolumeReclaimPolicy: {{ .Values.persistence.config.volumeReclaimPolicy }}
   hostPath:
-     path: {{ .Values.persistence.config.mountPath }}
-{{- if .Values.persistence.config.storageClass }}
-{{- if (eq "-" .Values.persistence.config.storageClass) }}
-  storageClassName: ""
-{{- else }}
-  storageClassName: "{{ .Values.persistence.config.storageClass }}"
-{{- end }}
-{{- end }}
+    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ .Release.Name }}/{{ .Values.persistence.mountSubPath }}
+  storageClassName: "{{ include "common.fullname" . }}-data"
+{{- end -}}
+{{- end -}}
 {{- end -}}
diff --git a/kubernetes/aaf/charts/aaf-hello/templates/aaf-hello-pvc.yaml b/kubernetes/aaf/charts/aaf-hello/templates/aaf-hello-pvc.yaml
index 7c45b8bd7f..68828767e3 100644
--- a/kubernetes/aaf/charts/aaf-hello/templates/aaf-hello-pvc.yaml
+++ b/kubernetes/aaf/charts/aaf-hello/templates/aaf-hello-pvc.yaml
@@ -1,3 +1,4 @@
+{{- if ne 0 (int .Values.global.aaf.hello.replicas) }}
 {{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) -}}
 #########
 ##  ============LICENSE_START====================================================
@@ -33,20 +34,11 @@ metadata:
 {{ toYaml .Values.persistence.annotations | indent 4 }}
 {{- end }}
 spec:
-  selector:
-    matchLabels:
-      app: {{ include "common.name" . }}-hello
   accessModes:
     - {{ .Values.persistence.config.accessMode }}
   resources:
     requests:
       storage: {{ .Values.persistence.config.size }}
-{{- if .Values.persistence.config.storageClass }}
-{{- if (eq "-" .Values.persistence.config.storageClass) }}
-  storageClassName: ""
-{{- else }}
-  storageClassName: "{{ .Values.persistence.config.storageClass }}"
-{{- end }}
-{{- end }}
+  storageClassName: {{ include "common.storageClass" . }}
+{{- end -}}
 {{- end -}}
-
diff --git a/kubernetes/aaf/charts/aaf-hello/templates/deployment.yaml b/kubernetes/aaf/charts/aaf-hello/templates/deployment.yaml
index c5fcf68a58..2135f1ef31 100644
--- a/kubernetes/aaf/charts/aaf-hello/templates/deployment.yaml
+++ b/kubernetes/aaf/charts/aaf-hello/templates/deployment.yaml
@@ -34,8 +34,12 @@ spec:
         hostPath:
           path: /etc/localtime
       - name: aaf-hello-vol
+      {{- if and .Values.persistence.enabled }}
         persistentVolumeClaim:
           claimName: {{ .Release.Name }}-aaf-hello-pvc
+      {{- else }}
+        emptyDir: {}
+      {{- end }}
       imagePullSecrets:
       - name: "{{ include "common.namespace" . }}-docker-registry-key"
       initContainers:
diff --git a/kubernetes/aaf/charts/aaf-hello/values.yaml b/kubernetes/aaf/charts/aaf-hello/values.yaml
index ea6665c61a..0d1521eba3 100644
--- a/kubernetes/aaf/charts/aaf-hello/values.yaml
+++ b/kubernetes/aaf/charts/aaf-hello/values.yaml
@@ -44,14 +44,13 @@ service:
 
 persistence:
   enabled: true
-  config:
     #existingClaim:
     # You will want "Reatan" in non-Hello Example.
-    volumeReclaimPolicy: Delete
-    accessMode: ReadWriteMany
-    size: 40M
-    storageClass: "manual"
-    mountPath: "/mnt/data/aaf/hello"
+  volumeReclaimPolicy: Delete
+  accessMode: ReadWriteMany
+  size: 40M
+  mountPath: /dockerdata-nfs
+  mountSubPath: aaf/hello
 
 nodeSelector: {}