K8s task

.github/workflows/docker-publish.yml

@@ -0,0 +1,21 @@
+name: Docker
+on:
+  push:
+    # Publish `master` as Docker `latest` image.
+    branches:
+      - master
+
+jobs:
+  # Run tests.
+  # See also https://docs.docker.com/docker-hub/builds/automated-testing/
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Run tests
+        run: |
+            docker build . --file dockerfile -t mahmom/jenkins_iti:v1.10
+            docker login -u ${{ secrets.DOCKER_USERNAME}} -p ${{secrets.DOCKER_PASSWORD}}
+            docker push mahmom/jenkins_iti:v1.10

.github/workflows/main.yml

@@ -0,0 +1,61 @@
+name: nodejs-workflow
+
+on:
+  pull_request:
+    branches:
+      - master
+  push:
+    branches:
+      - master
+
+jobs:
+
+  testing:
+    runs-on: self-hosted
+    steps:
+      - name: checkout repo
+        uses: actions/checkout@v4
+
+      - name: SonarQube scan
+        uses: SonarSource/sonarqube-scan-action@v2
+        env:
+          SONAR_HOST_URL: http://localhost:9001
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+        with:
+          args: >
+            -Dsonar.projectKey=nodejs-workflow
+            -Dsonar.sources=.
+
+      - name: Quality Gate
+        uses: SonarSource/sonarqube-quality-gate-action@v1
+        env:
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+
+  build:
+    needs: testing
+    runs-on: self-hosted
+    steps:
+      - name: checkout repo
+        uses: actions/checkout@v4
+
+      - name: docker login
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: build image
+        run: |
+          docker build -t danamostafa/nodejs:latest .
+          docker push danamostafa/nodejs:latest
+
+  deployment:
+    needs: build
+    if: github.ref == 'refs/heads/master'
+    runs-on: self-hosted
+    steps:
+      - name: checkout repo
+        uses: actions/checkout@v4
+
+      - name: apply k8s manifest file
+        run: kubectl apply -f k8s/

.gitignore

@@ -0,0 +1,4 @@
+.scannerwork/
+node_modules/
+package-lock.json
+

dockerfile

@@ -1,5 +1,10 @@
-FROM node:12
-COPY nodeapp /nodeapp
+FROM node:18
+
 WORKDIR /nodeapp
+
+COPY nodeapp/package*.json ./
 RUN npm install
-CMD ["node", "/nodeapp/app.js"]
+
+COPY nodeapp .
+
+CMD ["node", "app.js"]

k8s/config.yml

@@ -0,0 +1,10 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: mysql-config
+  namespace: nodejs
+data:
+  DB_HOST: mysql
+  DB_USER: root
+  DB_NAME: mydb
+  DB_PORT: "3306"

k8s/deployment.yml

@@ -0,0 +1,78 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: nodejs-deployment
+  namespace: nodejs
+  labels:
+    app: backend
+
+spec:
+  replicas: 2
+
+  selector:
+    matchLabels:
+      app: backend
+
+  template:
+    metadata:
+      labels:
+        app: backend
+
+    spec:
+      containers:
+        - name: nodejs
+          image: danamostafa/nodejs:latest
+
+          ports:
+            - containerPort: 3000
+
+          env:
+            - name: DB_HOST
+              valueFrom:
+                configMapKeyRef:
+                  name: mysql-config
+                  key: DB_HOST
+
+            - name: DB_USER
+              valueFrom:
+                configMapKeyRef:
+                  name: mysql-config
+                  key: DB_USER
+
+            - name: DB_NAME
+              valueFrom:
+                configMapKeyRef:
+                  name: mysql-config
+                  key: DB_NAME
+
+            - name: DB_PORT
+              valueFrom:
+                configMapKeyRef:
+                  name: mysql-config
+                  key: DB_PORT
+
+            - name: DB_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: mysql-secret
+                  key: MYSQL_ROOT_PASSWORD
+
+          resources:
+            requests:
+              cpu: "100m"
+              memory: "128Mi"
+            limits:
+              cpu: "250m"
+              memory: "256Mi"
+
+          readinessProbe:
+            httpGet:
+              path: /
+              port: 3000
+            initialDelaySeconds: 5
+
+          livenessProbe:
+            httpGet:
+              path: /
+              port: 3000
+            initialDelaySeconds: 10

k8s/mysqlsev.yml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: mysql
+  namespace: nodejs
+spec:
+  clusterIP: None   
+  selector:
+    app: mysql      
+  ports:
+    - port: 3306
+      targetPort: 3306

k8s/nodejsev.yml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: nodejs
+  namespace: nodejs
+spec:
+  type: NodePort
+  selector:
+     app: backend
+  ports:
+    - port: 3000
+      targetPort: 3000
+      nodePort: 30828
+

k8s/ns.yml

@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: nodejs
+  labels:
+    name: development

k8s/pv.yml

@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: mysql-pv
+spec:
+  capacity:
+    storage: 1Gi
+
+  accessModes:
+    - ReadWriteOnce
+
+  hostPath:
+    path: /data/mysql

k8s/pvc.yml

@@ -0,0 +1,17 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mysql-pvc
+  namespace: nodejs
+
+spec:
+  volumeName: mysql-pv   
+
+  storageClassName: "" 
+
+  accessModes:
+    - ReadWriteOnce
+
+  resources:
+    requests:
+      storage: 1Gi

k8s/secret.yml

@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: mysql-secret
+  namespace: nodejs
+data:
+  MYSQL_ROOT_PASSWORD: bXlwYXNzd29yZA==

k8s/statefulset.yml

@@ -0,0 +1,48 @@
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: mysql
+  namespace: nodejs
+
+spec:
+  serviceName: mysql
+  replicas: 1
+
+  selector:
+    matchLabels:
+      app: mysql
+
+  template:
+    metadata:
+      labels:
+        app: mysql
+
+    spec:
+      containers:
+        - name: mysql
+          image: mysql:8.0
+
+          ports:
+            - containerPort: 3306
+
+          env:
+            - name: MYSQL_ROOT_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: mysql-secret
+                  key: MYSQL_ROOT_PASSWORD
+
+            - name: MYSQL_DATABASE
+              valueFrom:
+                configMapKeyRef:
+                  name: mysql-config
+                  key: DB_NAME
+
+          volumeMounts:
+            - name: mysql-storage
+              mountPath: /var/lib/mysql
+
+      volumes:
+        - name: mysql-storage
+          persistentVolumeClaim:
+            claimName: mysql-pvc

nodeapp/app.js

@@ -1,10 +1,29 @@
+const mysql = require('mysql2');
 const express = require('express')
 const app = express()
 const port = 3000
+const host= process.env.DB_HOST
+const user= process.env.DB_USER
+const password= process.env.DB_PASSWORD
+const database= process.env.DB_NAME;
+
+const connection = mysql.createConnection({
+  host: host,
+  user: user,
+  password: password,
+  database: database
+});
+connection.connect((err) => {
+  if (err) throw err;
+  console.log('Connected!');
+});
+
 app.get('/', (req, res) => {
     res.send('Hello World!')
   })
 
   app.listen(port, () => {
     console.log(`Example app listening at http://localhost:${port}`)
-  })
+  })
+
+

nodeapp/package.json

@@ -10,5 +10,8 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "express": "^4.17.1"  }
+    "express": "^4.17.1",
+    "mysql": "^2.18.1",
+    "mysql2": "^3.22.3"
+  }
 }