Exercise 4 Kubernetes

docker-compose.yml

-services:
-  app1:
-    build:
-      context: .
-      dockerfile: Dockerfile
-    ports:
-      - "3001:3000" # Map container port 3000 to host port 3001
-    environment:
-      - PORT=3000
-      - MONGO_URL=mongodb://db:27017/todo-app # MongoDB connection string
-    depends_on:
-      - db
-
-  app2:
-    build:
-      context: .
-      dockerfile: Dockerfile
-    ports:
-      - "3002:3000" # Map container port 3000 to host port 3002
-    environment:
-      - PORT=3000
-      - MONGO_URL=mongodb://db:27017/todo-app # MongoDB connection string
-    depends_on:
-      - db
-
-  db:
-    image: mongo:6.0
-    container_name: mongodb
-    ports:
-      - "27017:27017"
-    volumes:
-      - mongo-data:/data/db # MongoDB data Volume
-
-volumes:
-  mongo-data:
\ No newline at end of file

mongo-deployment.yaml

+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mongo
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: mongo
+  template:
+    metadata:
+      labels:
+        app: mongo
+    spec:
+      containers:
+        - name: mongo
+          image: mongo:6.0
+          ports:
+            - containerPort: 27017
+          volumeMounts:
+            - name: mongo-data
+              mountPath: /data/db
+      volumes:
+        - name: mongo-data
+          emptyDir: {}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: mongo
+spec:
+  selector:
+    app: mongo
+  ports:
+    - protocol: TCP
+      port: 27017
+      targetPort: 27017

todo-app-deployment.yaml

+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: todo-app
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: todo-app
+  template:
+    metadata:
+      labels:
+        app: todo-app
+    spec:
+      containers:
+        - name: todo-app
+          image: michael1234123/todo-app:latest
+          ports:
+            - containerPort: 3000
+          env:
+            - name: PORT
+              value: "3000"
+            - name: MONGO_URL
+              value: "mongodb://mongo:27017/todo-app"

todo-app-ingress.yaml

+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: todo-app-ingress
+spec:
+  rules:
+    - host: todo-app.local
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: todo-app-service
+                port:
+                  number: 3000

todo-app-service.yaml

+apiVersion: v1
+kind: Service
+metadata:
+  name: todo-app-service
+spec:
+  type: NodePort
+  selector:
+    app: todo-app
+  ports:
+    - protocol: TCP
+      port: 3000
+      targetPort: 3000
+      nodePort: 30001