restheart-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: restheart
  name: restheart
spec:
  replicas: 1
  selector:
    matchLabels:
      app: restheart
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: restheart
    spec:
      containers:
        - name: restheart
          args:
            - --envFile
            - /opt/restheart/etc/restheart.properties
          env:
            - name: MONGO_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: restheart-mongodb-secret
                  key: password
            - name: MONGO_USERNAME
              valueFrom:
                secretKeyRef:
                  name: restheart-mongodb-secret
                  key: username
            - name: MONGO_URI
              value: mongodb://$(MONGO_USERNAME):$(MONGO_PASSWORD)@restheart-mongo:27017
          image: softinstigate/restheart:latest          
          volumeMounts:
          - name: conf
            mountPath: /opt/restheart/etc/restheart.properties
            subPath: restheart.properties
          ports:
            - containerPort: 8080
      initContainers:          
        - name: mongodb-initiate                   
          command:
          - bash
          - -c
          - for i in {1..100}; do mongo  --host restheart-mongo --port 27017 --username $MONGO_USERNAME --password $MONGO_PASSWORD --eval 'if (!rs.status().ok) rs.initiate();' && break || sleep 2; done
          image: mongo:4.2
          env:
            - name: MONGO_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: restheart-mongodb-secret
                  key: password
            - name: MONGO_USERNAME
              valueFrom:
                secretKeyRef:
                  name: restheart-mongodb-secret
                  key: username      
      restartPolicy: Always
      volumes:
        - name: conf
          configMap:
            name: restheart-cm
            items:
            - key: restheart.properties
              path: restheart.properties
status: {}