Move xos-db into it's own chart

Have it issue it's own PersistentVolumeClaim if required

Change-Id: I408559b2cf4481e011e47c310147fd36c8c284bc
diff --git a/xos-db/templates/db-deployment.yaml b/xos-db/templates/db-deployment.yaml
new file mode 100644
index 0000000..a3d3e91
--- /dev/null
+++ b/xos-db/templates/db-deployment.yaml
@@ -0,0 +1,57 @@
+---
+# Copyright 2017-present Open Networking Foundation
+#
+# 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.
+
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: xos-db
+  labels:
+    app: xos-db
+spec:
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: xos-db
+    spec:
+      containers:
+        - name: xos-db
+          image: {{ .Values.postgresImage | quote }}
+          imagePullPolicy: {{ .Values.imagePullPolicy }}
+          ports:
+            - containerPort: 5432
+              protocol: TCP
+          env:
+            - name: POSTGRES_DB
+              value: {{ .Values.xosDBName | quote }}
+            - name: POSTGRES_USER
+              value: {{ .Values.xosDBUser | quote }}
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: xos-db-secrets
+                  key: password
+            - name: PGDATA
+              value: "/var/lib/postgresql/data/pgdata"
+{{- if .Values.needDBPersistence }}
+          volumeMounts:
+            - name: db-pv-storage
+              mountPath: "/var/lib/postgresql/data"
+      volumes:
+        - name: db-pv-storage
+          persistentVolumeClaim:
+            claimName: {{ .Values.pvClaimName }}
+{{- include "xos-db.persistent-volume-claim" . }}
+{{- end }}