Feature

Deployment.yaml

@@ -0,0 +1,37 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: my-app
+  name: nodejs-app
+spec:
+  replicas: 4
+  selector:
+    matchLabels:
+      app: my-app
+  template:
+    metadata:
+      labels:
+        app: my-app
+    spec:
+      containers:
+      - name: node-app
+        image: public.ecr.aws/y0j0v8z3/test-ecr:feature
+        ports:
+        - containerPort: 80
+
+---
+
+apiVersion: v1
+kind: Service
+metadata:
+  name: my-service
+spec:
+  selector:
+    app: my-app
+  type: NodePort
+  ports:
+  - port: 3000
+    targetPort: 3000
+    nodePort: 32600
+    protocol: TCP

Dockerfile

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+FROM node:16
+WORKDIR /app
+COPY . . 
+RUN npm install
+EXPOSE 8080
+CMD ["npm","start"]

Jenkinsfile

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+pipeline {
+
+    agent any
+
+    stages {
+
+        stage('Clone repository') { 
+            steps { 
+                script{
+                checkout scm
+                }
+            }
+        }
+        stage('Build') {
+            steps {
+                sh 'pwd'
+                sh 'ls -la'
+                sh 'npm install'
+                sh 'npm run'
+                sh 'ls -la'
+            }
+
+        }
+
+        stage('Docker Image Build') {
+            steps {
+                sh 'docker build -t test-ecr .'
+            }
+        }
+
+        stage('Push Docker Image to ECR') {
+            steps {
+                withAWS(credentials: 'aws-credentials', region: 'ap-south-1') {
+                    sh 'aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin public.ecr.aws/y0j0v8z3'
+                    sh 'docker tag test-ecr:latest public.ecr.aws/y0j0v8z3/test-ecr:feature'
+                    sh 'docker push public.ecr.aws/y0j0v8z3/test-ecr:feature'
+                }
+            }
+        }
+
+        stage('Integrate Jenkins with EKS Cluster and Deploy App') {
+            steps {
+                 withKubeConfig(caCertificate: '', clusterName: '', contextName: '', credentialsId: 'K8S', namespace: '', restrictKubeConfigAccess: false, serverUrl: '') {
+                  script {
+                    sh 'ls -la'
+                    sh "kubectl apply -f Deployment.yaml"
+
+                  }
+
+                }
+             }
+        }
+
+    }
+}

README.md

@@ -1,3 +1,24 @@
 # SampleExpressApp
 
 Used for Devops interview
+
+STEP BY STEP CICD 
+
+
+Launch a virtual machine of any linux flavour and install jenkins, docker, AWS CLI and nodejs
+
+Create a registry in AWS ECR and create IAM user with required permission to carry out ECR activities.
+
+Create EKS cluster using AWS CLI along with creation of IAM role with cloudformation, IAM &  EC2 permissions.
+
+Create AWS access key and secret keys from IAM user
+
+Access jenkins through port 8080 on browser and download AWS:Pipeline, ECR, docker pipeline, EKS, cloudbees plugins
+
+Store AWS credentials in jenkins which are required to login to ECR
+
+Create Dockerfile (As shown in repo) and Jenkinsfile with necessary steps and stages
+
+Create K8S manifest file for Deployment and services and choose type as Nodeport (With appropriate port of an application)
+
+Now, access this application with Node IP:NodePort on browser.