deployments.yaml

---
# define the `Deployment` for the mongodb server
apiVersion: apps/v1
kind: Deployment
metadata:
  name: mongodb
  labels:
    app: mongodb
spec:
  replicas: 1
  selector:
    matchLabels:
      app: mongodb
  template:
    metadata:
      labels:
        app: mongodb
    spec:
      terminationGracePeriodSeconds: 10
      containers:
        - name: mongodb
          image: mongo
          imagePullPolicy: Always 
          ports:
            - containerPort: 27017
          volumeMounts:
            - name: mongo-pv-storage
              mountPath: /data/db
          env:
            - name: MONGO_INITDB_ROOT_USERNAME
              valueFrom:
                secretKeyRef:
                  name: mongodb-secret
                  key: mongo-root-username
            - name: MONGO_INITDB_ROOT_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: mongodb-secret
                  key: mongo-root-password
      volumes:
        - name: mongo-pv-storage
          persistentVolumeClaim:
            claimName: mongo-pv-claim


---
# define the `Deployment` for mongo-express
apiVersion: apps/v1
kind: Deployment
metadata:
  name: mongo-express
  labels:
    app: mongo-express
spec:
  replicas: 2
  selector:
    matchLabels:
      app: mongo-express
  template:
    metadata:
      labels:
        app: mongo-express
    spec:
      containers:
        - name: mongo-express
          image: mongo-express
          ports:
            - containerPort: 8081
          env:
            - name: ME_CONFIG_MONGODB_ADMINUSERNAME
              valueFrom:
                secretKeyRef:
                  name: mongodb-secret
                  key: mongo-root-username
            - name: ME_CONFIG_MONGODB_ADMINPASSWORD
              valueFrom:
                secretKeyRef:
                  name: mongodb-secret
                  key: mongo-root-password
            - name: ME_CONFIG_MONGODB_SERVER
              valueFrom:
                configMapKeyRef:
                  name: mongodb-configmap
                  key: database_url
---
# define the `Deployment` for flask-app
# set ImagePullPolicy to 'Never' to allow the use of the locally built image
apiVersion: apps/v1
kind: Deployment
metadata:
  name: flaskapi
  labels:
    app: flaskapi
spec:
  replicas: 2
  selector:
    matchLabels:
      app: flaskapi
  template:
    metadata:
      labels:
        app: flaskapi
    spec:
      containers:
        - name: flaskapi
          image: shamanthkolegodu/flaskapiwithvolume
          imagePullPolicy: Always
          ports:
            - containerPort: 5001
# abstraction of pods
# used to replicate