Basic example

backend/deployment.yaml

@@ -0,0 +1,21 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: backend
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: backend
+  template:
+    metadata:
+      labels:
+        app: backend
+    spec:
+      containers:
+      - name: backend
+        image: hashicorp/http-echo
+        args:
+          - "-text=Hello from backend"
+        ports:
+        - containerPort: 5678

backend/service.yaml

@@ -0,0 +1,10 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: backend
+spec:
+  selector:
+    app: backend
+  ports:
+    - port: 80
+      targetPort: 5678