########################################################################
# This YAML file desribes a StatefulSet with a service for running and #
# exposing a MongoDB service.                                          #
# It depends on the configdb and db k8s pvc.                           #
########################################################################

apiVersion: v1
kind: Service
metadata:
  name: mdb
  namespace: default
  labels:
    name: mdb
spec:
  selector:
    app: mdb
  ports:
  - port: 27017
    targetPort: 27017
    name: mdb-port
  type: LoadBalancer
---
apiVersion: apps/v1beta1
kind: StatefulSet 
metadata:
  name: mdb
  namespace: default
spec:
  serviceName: mdb
  replicas: 1
  template:
    metadata:
      name: mdb
      labels:
        app: mdb
    spec:
      terminationGracePeriodSeconds: 10
      containers:
      - name: mongodb
        image: mongo:3.4.1
        args:
        - --replSet=bigchain-rs
        securityContext:
          capabilities:
            add:
            - FOWNER
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 27017
          hostPort: 27017
          name: mdb-port
          protocol: TCP
        volumeMounts:
        - name: mdb-db
          mountPath: /data/db
        - name: mdb-configdb
          mountPath: /data/configdb
        resources:
          limits:
            cpu: 200m
            memory: 768Mi
        livenessProbe:
          tcpSocket:
            port: mdb-port
          successThreshold: 1
          failureThreshold: 3
          periodSeconds: 15
          timeoutSeconds: 1
      restartPolicy: Always
      volumes:
      - name: mdb-db
        persistentVolumeClaim:
          claimName: mongo-db-claim
      - name: mdb-configdb
        persistentVolumeClaim:
          claimName: mongo-configdb-claim