[CORD-2889]
Use premade `postgres` container

Change-Id: Ifc9a021c425d8f03c98d566978400884fbace4de
diff --git a/examples/filter-images.yaml b/examples/filter-images.yaml
index 2f61930..aa0411f 100644
--- a/examples/filter-images.yaml
+++ b/examples/filter-images.yaml
@@ -1,5 +1,4 @@
 ---
-
 # Copyright 2018-present Open Networking Foundation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -17,20 +16,16 @@
 # Whitelist for use with imagebuilder
 
 docker_image_whitelist:
+- xosproject/chameleon
 - xosproject/xos-base
-- xosproject/xos-core
 - xosproject/xos-client
+- xosproject/xos-core
 - xosproject/xos-gui
 - xosproject/xos-gui-builder
 - xosproject/xos-libraries
-- xosproject/xos-postgres
 - xosproject/xos-tosca
 - xosproject/xos-ws
-- xosproject/chameleon
 - xosproject/xos-synchronizer-base
-- redis
-- nginx
-- node
 - xosproject/rcord-synchronizer
 - xosproject/volt-synchronizer
 - xosproject/vtn-synchronizer
@@ -38,3 +33,7 @@
 - xosproject/addressmanager-synchronizer
 - xosproject/vsg-hw-synchronizer
 - xosproject/fabric-synchronizer
+- nginx
+- node
+- postgres
+- redis
diff --git a/xos-core/templates/db-deployment.yaml b/xos-core/templates/db-deployment.yaml
index f950b32..c103e09 100644
--- a/xos-core/templates/db-deployment.yaml
+++ b/xos-core/templates/db-deployment.yaml
@@ -40,3 +40,12 @@
                 configMapKeyRef:
                   name: xos-db
                   key: service_5432_name
+            - name: POSTGRES_DB
+              value: {{ .Values.configs.core_config.database.name | quote }}
+            - name: POSTGRES_USER
+              value: {{ .Values.configs.core_config.database.username | quote }}
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: xos-db-secret
+                  key: postgres-password
diff --git a/xos-core/templates/db-secrets.yaml b/xos-core/templates/db-secrets.yaml
new file mode 100644
index 0000000..5a5ca79
--- /dev/null
+++ b/xos-core/templates/db-secrets.yaml
@@ -0,0 +1,22 @@
+# 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: v1
+kind: Secret
+metadata:
+  name: xos-db-secret
+  namespace: default
+type: Opaque
+data:
+  postgres-password: {{ .Values.configs.core_config.database.password | b64enc | quote }}
diff --git a/xos-core/templates/db-service.yaml b/xos-core/templates/db-service.yaml
index a011362..802665a 100644
--- a/xos-core/templates/db-service.yaml
+++ b/xos-core/templates/db-service.yaml
@@ -21,7 +21,7 @@
 spec:
   type: NodePort
   ports:
-  - port: 5432 
+  - port: 5432
     targetPort: 5432
     nodePort: {{ .Values.node_ports.db_service_port }}
     protocol: TCP
diff --git a/xos-core/values.yaml b/xos-core/values.yaml
index 8f37704..ccb647c 100644
--- a/xos-core/values.yaml
+++ b/xos-core/values.yaml
@@ -24,8 +24,8 @@
     tag: 'master'
     pullPolicy: 'IfNotPresent'
   xos_db:
-    repository: xosproject/xos-postgres
-    tag: 'master'
+    repository: postgres
+    tag: '10.3-alpine'
     pullPolicy: 'IfNotPresent'
   xos_tosca:
     repository: xosproject/xos-tosca