Add External Interface NBI project into OOM

NBI (North Bound Interface) is one of the new project added for Beijing
release.

Features added
==============

MongoDB common chart
--------------------

Ability to start a mongo container, with a chart consistent with other
common charts (readiness, liveness, persistence, resources, nfs,
service, ...).

Specific configuration:
  * name of the db to create if needed

NBI chart
---------

Ability to start a mariadb container, with a chart consistent with other
common charts (readiness, liveness, persistence, resources, nfs,
service, ...).

Specific configuration:
  * name of the db to create if needed
  * name of the user that has access to the db
  * password of the user that has access to the db
  * root password of the database

Ability to start a NBI container, with a chart consistent with other
common charts (readiness, liveness, persistence, resources, nfs,
service, ...).

Specific configuration:
  * log level
  * cloudOwner
  * ecompInstanceId
  * openStackRegion
  * openStackServiceTenantName
  * sdc_authorization
  * aai_authorization
  * so_authorization

ONAP chart
----------

Added a requirement on NBI chart, possibility to enable/disable and
configuration to push to the chart.

Current Status
==============

- [*] adding a common chart for mongodb
- [*] make mongo chart compiling
- [*] testing the mongodb common role
- [*] creating a mariadb chart inside nbi helm
- [*] testing the mariadb chart
- [*] make mariadb chart compiling
- [*] make nbi use these charts
- [*] make nbi chart compiling
- [*] test the whole solution
- [*] create a service for nbi

Change-Id: I8dd3e79768c83b1553a05c892cf418f840931255
Issue-ID: EXTAPI-54
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
diff --git a/kubernetes/common/mongo/templates/statefulset.yaml b/kubernetes/common/mongo/templates/statefulset.yaml
new file mode 100644
index 0000000..8b33f61
--- /dev/null
+++ b/kubernetes/common/mongo/templates/statefulset.yaml
@@ -0,0 +1,104 @@
+{{/*
+# Copyright © 2018 Orange
+#
+# 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: apps/v1beta1
+kind: StatefulSet
+metadata:
+  name: {{ include "common.fullname" . }}
+  namespace: {{ include "common.namespace" . }}
+  labels:
+    app: {{ include "common.name" . }}
+    chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  serviceName: {{ .Values.service.name }}
+  replicas: {{ .Values.replicaCount }}
+  template:
+    metadata:
+      labels:
+        app: {{ include "common.name" . }}
+        release: {{ .Release.Name }}
+    spec:
+      initContainers:
+#{{ if not .Values.disableNfsProvisioner }}
+      - name: {{ include "common.name" . }}-readiness
+        command:
+        - /root/ready.py
+        args:
+        - --container-name
+        - {{ .Values.nfsprovisionerPrefix }}-nfs-provisioner
+        env:
+        - name: NAMESPACE
+          valueFrom:
+            fieldRef:
+              apiVersion: v1
+              fieldPath: metadata.namespace
+        image: "{{ .Values.global.readinessRepository }}/{{ .Values.global.readinessImage }}"
+        imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy }}
+#{{ end }}
+
+      containers:
+        - name: {{ include "common.name" . }}
+          image: "{{ .Values.dockerHubRepository }}/{{ .Values.image }}"
+          imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy }}
+          env:
+            - name: MONGO_INITDB_DATABASE
+              value: "{{ .Values.config.dbName }}"
+          ports:
+          - containerPort: {{ .Values.service.internalPort }}
+          # disable liveness probe when breakpoints set in debugger
+          # so K8s doesn't restart unresponsive container
+          {{- if eq .Values.liveness.enabled true }}
+          livenessProbe:
+            exec:
+              command:
+                - mongo
+                - --eval
+                - "db.adminCommand('ping')"
+            initialDelaySeconds: {{ .Values.liveness.initialDelaySeconds }}
+            periodSeconds: {{ .Values.liveness.periodSeconds }}
+            timeoutSeconds: {{ .Values.liveness.timeoutSeconds }}
+          {{end -}}
+          readinessProbe:
+            tcpSocket:
+              port: {{ .Values.service.internalPort }}
+            initialDelaySeconds: {{ .Values.readiness.initialDelaySeconds }}
+            periodSeconds: {{ .Values.readiness.periodSeconds }}
+          volumeMounts:
+          - mountPath: /var/lib/mongo
+            name: {{ include "common.fullname" . }}-data
+          resources:
+{{ toYaml .Values.resources | indent 12 }}
+        {{- if .Values.nodeSelector }}
+        nodeSelector:
+{{ toYaml .Values.nodeSelector | indent 10 }}
+        {{- end -}}
+        {{- if .Values.affinity }}
+        affinity:
+{{ toYaml .Values.affinity | indent 10 }}
+        {{- end }}
+      volumes:
+      - name: localtime
+        hostPath:
+          path: /etc/localtime
+      - name: {{ include "common.fullname" . }}-data
+#{{ if .Values.persistence.enabled }}
+        persistentVolumeClaim:
+          claimName: {{ include "common.fullname" . }}-data
+#{{ else }}
+        emptyDir: {}
+#{{ end }}