example-app/Jenkinsfile

pipeline {
    agent {
        kubernetes {
            yaml """
apiVersion: v1
kind: Pod
metadata:
  name: default
  namespace: default
  labels:
    jenkins-server-jenkins-agent: "true"
spec:
  containers:
    - name: jnlp
      image: jenkins/inbound-agent:3309.v27b_9314fd1a_4-2
      workingDir: /home/jenkins/agent
      env:
        - name: JENKINS_URL
          value: "http://jenkins-server.default.svc.cluster.local:8080/"
      resources:
        requests:
          cpu: "512m"
          memory: "512Mi"
        limits:
          cpu: "512m"
          memory: "512Mi"

    - name: maven
      image: maven:latest
      workingDir: /home/jenkins/agent
      command: ["/bin/sh", "-c"]
      args: ["sleep 9999999"]
      env:
        - name: NEXUS_URL
          value: "http://nexus-repo-nexus-repository-manager.default.svc.cluster.local:8081/repository/my-helm-repo/"
        - name: NEXUS_PASS
          value: "testpass"

    - name: helm
      image: alpine/helm:latest
      workingDir: /home/jenkins/agent
      command: ["/bin/sh", "-c"]
      args: ["sleep 9999999"]

    - name: docker
      image: docker:dind
      workingDir: /home/jenkins/agent
      command: ["/bin/sh", "-c"]
      args: ["sleep 9999999"]
      securityContext:
        privileged: true
      env:
        - name: NEXUS_DOCKER_URL
          value: "nexus-repo-nexus-repository-manager.default.svc.cluster.local:5000"
        - name: NEXUS_DOCKER_PASS
          value: "testpass"

  restartPolicy: Never
  serviceAccountName: jenkins-server
  volumes:
    - emptyDir: {}
      name: workspace-volume
"""
           // inheritFrom 'default'
          //  defaultContainer 'jnlp'
        }
    }
    stages{
        stage('Make jar') {
            steps {
                container('maven') {
                    sh 'mvn install -DskipTests'
                }
            }
        }
        stage('Change values.yaml to nexus') {
            steps {
                container('maven') {
                    sh 'sed -i "s|docker.io/root/example-app:1.0.0-SNAPSHOT|localhost:5000/my-docker-repo/example-app:latest|g" target/helm/kubernetes/example-app/values.yaml'
                }
            }
        }
        stage('Change deployment.yaml to include nexus-secret') {
            steps {
                container('maven') {
                    sh 'sed -i "/containers:/i\\      imagePullSecrets:\\n        - name: nexus-secret" target/helm/kubernetes/example-app/templates/deployment.yaml'
                }
            }
        }
        stage('Make chart') {
            steps {
                container('helm') {
                    sh 'helm package target/helm/kubernetes/example-app'
                }
            }
        }
        stage('Upload chart') {
            steps {
                container('maven') {
                    sh 'curl -u admin:$NEXUS_PASS --upload-file example-app-1.0.0-SNAPSHOT.tgz $NEXUS_URL'
                }
            }
        }
        stage('Docker in Docker start') {
            steps {
                container('docker') {
                    sh 'dockerd --insecure-registry http://$NEXUS_DOCKER_URL &'
                }
            }
        }
        stage('Docker build in Docker') {
            steps {
                container('docker') {
                    sh 'docker build -t example-app -f ./Dockerfile target'
                }
            }
        }
        stage('Docker repo login') {
            steps {
                container('docker') {
                    sh 'docker login http://$NEXUS_DOCKER_URL -u admin -p $NEXUS_DOCKER_PASS'
                }
            }
        }
        stage('Docker image tag') {
            steps {
                container('docker') {
                    sh 'docker tag example-app $NEXUS_DOCKER_URL/my-docker-repo/example-app:latest'
                }
            }
        }
        stage('Docker image push') {
            steps {
                container('docker') {
                    sh 'docker push $NEXUS_DOCKER_URL/my-docker-repo/example-app:latest'
                }
            }
        }
        stage('check Helm Repo') {
            agent { label 'local' }
            steps {
                sh 'helm repo list'
            }
        }
        stage('Setup Helm Repo') {
            agent { label 'local' }
            steps {
                sh 'helm repo add my-helm-repo http://localhost:8081/repository/my-helm-repo/'
                sh 'helm repo update'
            }
        }
        stage('Deploy Helm Chart') {
            agent { label 'local' }
            steps {
                sh 'helm install example-app my-helm-repo/example-app --version 1.0.0-SNAPSHOT --set app.ports.http=8090 --set imagePullSecrets[0]=nexus-secret'
            }
        }
        
    }
    post {
        success {
            echo 'Build Successful'
        }
        failure {
            echo 'Build Failed'
        }
    }
}