Add PV for SDN-C MD-DAL data exports

The path '/opt/opendaylight/current/daexim' is now mapped to a persistent
volume that will survive pod restarts and destruction.  A separate PV is
created for each SDN-C instance with the same ordinal as the corresponding
sdnc pod.

Change-Id: Ib5373fc2ae25b70992ff69e78571106f37af72e4
Signed-off-by: jmac <james.macnider@amdocs.com>
Issue-ID: SDNC-223

3 files changed, 126 insertions, 3 deletions

diff --git a/kubernetes/sdnc/templates/pv.yaml b/kubernetes/sdnc/templates/pv.yaml
new file mode 100644
index 0000000000..e20e2818a3
--- /dev/null
+++ b/kubernetes/sdnc/templates/pv.yaml
@@ -0,0 +1,84 @@
+{{/*
+# Copyright © 2018 Amdocs, AT&T, Bell Canada
+# #
+# # Licensed under the Apache License, Version 2.0 (the "License");
+# # you may not use this file except in compliance with the License.
+# # You may obtain a copy of the License at
+# #
+# #       http://www.apache.org/licenses/LICENSE-2.0
+# #
+# # Unless required by applicable law or agreed to in writing, software
+# # distributed under the License is distributed on an "AS IS" BASIS,
+# # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# # See the License for the specific language governing permissions and
+# # limitations under the License.
+*/}}
+{{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) -}}
+{{ $pvNum := default 1 .Values.replicaCount | int }}
+kind: PersistentVolume
+apiVersion: v1
+metadata:
+  name: {{ include "common.fullname" . }}-data0
+  namespace: {{ include "common.namespace" . }}
+  labels:
+    app: {{ include "common.fullname" . }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+    name: {{ include "common.fullname" . }}
+spec:
+  capacity:
+    storage: {{ .Values.persistence.size}}
+  accessModes:
+    - {{ .Values.persistence.accessMode }}
+  storageClassName: "{{ include "common.fullname" . }}-data"
+  persistentVolumeReclaimPolicy: {{ .Values.persistence.volumeReclaimPolicy }}
+  hostPath:
+    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ .Release.Name }}/{{ .Values.persistence.mountSubPath }}0
+{{ if gt $pvNum 1 }}
+---
+kind: PersistentVolume
+apiVersion: v1
+metadata:
+  name: {{ include "common.fullname" . }}-data1
+  namespace: {{ include "common.namespace" . }}
+  labels:
+    app: {{ include "common.fullname" . }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+    name: {{ include "common.fullname" . }}
+spec:
+  capacity:
+    storage: {{ .Values.persistence.size}}
+  accessModes:
+    - {{ .Values.persistence.accessMode }}
+  storageClassName: "{{ include "common.fullname" . }}-data"
+  persistentVolumeReclaimPolicy: {{ .Values.persistence.volumeReclaimPolicy }}
+  hostPath:
+    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ .Release.Name }}/{{ .Values.persistence.mountSubPath }}1
+{{ end }}
+{{ if gt $pvNum 2 }}
+---
+kind: PersistentVolume
+apiVersion: v1
+metadata:
+  name: {{ include "common.fullname" . }}-data2
+  namespace: {{ include "common.namespace" . }}
+  labels:
+    app: {{ include "common.fullname" . }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+    name: {{ include "common.fullname" . }}
+spec:
+  capacity:
+    storage: {{ .Values.persistence.size}}
+  accessModes:
+    - {{ .Values.persistence.accessMode }}
+  storageClassName: "{{ include "common.fullname" . }}-data"
+  persistentVolumeReclaimPolicy: {{ .Values.persistence.volumeReclaimPolicy }}
+  hostPath:
+    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ .Release.Name }}/{{ .Values.persistence.mountSubPath }}2
+{{ end }}
+{{- end -}}
\ No newline at end of file
diff --git a/kubernetes/sdnc/templates/statefulset.yaml b/kubernetes/sdnc/templates/statefulset.yaml
index 55eaf2b4d0..ccf283ff4c 100644
--- a/kubernetes/sdnc/templates/statefulset.yaml
+++ b/kubernetes/sdnc/templates/statefulset.yaml
@@ -102,6 +102,8 @@ spec:
           - mountPath: /opt/onap/sdnc/svclogic/config/svclogic.properties
             name: onap-sdnc-svclogic-config
             subPath: svclogic.properties
+          - mountPath: {{ .Values.persistence.mdsalPath }}
+            name: {{ include "common.fullname" . }}-data
           - mountPath: /var/log/onap
             name: logs
           resources:
@@ -127,6 +129,8 @@ spec:
             name: logs
           - mountPath: /usr/share/filebeat/data
             name: data-filebeat
+      imagePullSecrets:
+      - name: "{{ include "common.namespace" . }}-docker-registry-key"
       volumes:
         - name: localtime
           hostPath:
@@ -183,6 +187,19 @@ spec:
             - key: svclogic.properties
               path: svclogic.properties
               mode: 0644
-
-      imagePullSecrets:
-      - name: "{{ include "common.namespace" . }}-docker-registry-key"
+  {{ if not .Values.persistence.enabled }}
+        - name: {{ include "common.fullname" . }}-data
+          emptyDir: {}
+  {{ else }}
+  volumeClaimTemplates:
+  - metadata:
+      name: {{ include "common.fullname" . }}-data
+      labels:
+        name: {{ include "common.fullname" . }}
+    spec:
+      accessModes: [ {{ .Values.persistence.accessMode }} ]
+      storageClassName: {{ include "common.fullname" . }}-data
+      resources:
+        requests:
+          storage: {{ .Values.persistence.size }}
+  {{ end }}
\ No newline at end of file
diff --git a/kubernetes/sdnc/values.yaml b/kubernetes/sdnc/values.yaml
index e3cd8ae4ed..2603cd9fca 100644
--- a/kubernetes/sdnc/values.yaml
+++ b/kubernetes/sdnc/values.yaml
@@ -142,6 +142,28 @@ service:
   geoNodePort5: 65
   geoNodePort6: 66
 
+## Persist data to a persitent volume
+persistence:
+  enabled: true
+
+  ## A manually managed Persistent Volume and Claim
+  ## Requires persistence.enabled: true
+  ## If defined, PVC must be created manually before volume will be bound
+  # existingClaim:
+  volumeReclaimPolicy: Retain
+
+  ## database data Persistent Volume Storage Class
+  ## If defined, storageClassName: <storageClass>
+  ## If set to "-", storageClassName: "", which disables dynamic provisioning
+  ## If undefined (the default) or set to null, no storageClassName spec is
+  ##   set, choosing the default provisioner.  (gp2 on AWS, standard on
+  ##   GKE, AWS & OpenStack)
+  accessMode: ReadWriteOnce
+  size: 1Gi
+  mountPath: /dockerdata-nfs
+  mountSubPath: sdnc/mdsal
+  mdsalPath: /opt/opendaylight/current/daexim
+
 ingress:
   enabled: false