webapp.yaml

# https://kubernetes.io/docs/concepts/workloads/controllers/deployment/
apiVersion: apps/v1
kind: Deployment
metadata:
  name:  webapp-deployment
  namespace: default
  labels:
    app:  webapp
spec:
  selector:
    matchLabels:
      app: webapp
  replicas: 5
  template:
    metadata:
      labels:
        app:  webapp
    spec:
      containers:
      - name:  webapp
        image:  nanajanashia/k8s-demo-app:v1.0
        ports:
        - containerPort:  3000
          name:  webapp
        env:
        - name: USER_NAME
          valueFrom:
            secretKeyRef:
              name: mongo-secret
              key: mongo-user
        - name: USER_PWD
          valueFrom:
            secretKeyRef:
              name: mongo-secret
              key: mongo-password
        - name: DB_URL
          valueFrom:
            configMapKeyRef:
              name: mongo-config
              key: mongo-url

---
# https://kubernetes.io/docs/concepts/services-networking/service/
apiVersion: v1
kind: Service
metadata:
  name: webapp-service
  namespace: default
spec:
  type: NodePort
  selector:
    app: webapp
  ports:
  - name: webapp
    protocol: TCP
    port: 3000
    targetPort: 3000
    nodePort: 30100
---