Node.js Microservices on K8s

1apiVersion: v1
2kind: ConfigMap
3metadata:
4  name: node-api-config
5data:
6  NODE_ENV: "production"
7  WORKER_URL: "http://worker-svc:4000"

1apiVersion: apps/v1
2kind: Deployment
3metadata:
4  name: gateway
5spec:
6  replicas: 2
7  selector:
8    matchLabels:
9      app: gateway
10  template:
11    metadata:
12      labels:
13        app: gateway
14    spec:
15      containers:
16        - name: gateway
17          image: node-gateway:local
18          imagePullPolicy: IfNotPresent
19          ports:
20            - containerPort: 3000
21          envFrom:
22            - configMapRef:
23                name: node-api-config
24          resources:
25            requests:
26              memory: "128Mi"
27              cpu: "100m"
28            limits:
29              memory: "256Mi"
30              cpu: "250m"

1apiVersion: v1
2kind: Service
3metadata:
4  name: gateway-svc
5spec:
6  type: NodePort
7  selector:
8    app: gateway
9  ports:
10    - port: 3000
11      targetPort: 3000
12      nodePort: 32300

1apiVersion: apps/v1
2kind: Deployment
3metadata:
4  name: worker
5spec:
6  replicas: 1
7  selector:
8    matchLabels:
9      app: worker
10  template:
11    metadata:
12      labels:
13        app: worker
14    spec:
15      containers:
16        - name: worker
17          image: node-worker:local
18          imagePullPolicy: IfNotPresent
19          ports:
20            - containerPort: 4000
21          resources:
22            requests:
23              memory: "128Mi"
24              cpu: "100m"

1apiVersion: v1
2kind: Service
3metadata:
4  name: worker-svc
5spec:
6  type: ClusterIP
7  selector:
8    app: worker
9  ports:
10    - port: 4000
11      targetPort: 4000