Task 17 : Implement Jenkins Process

Author: Rapter1990

Jenkinsfile

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+pipeline {
+    agent any
+
+    environment {
+        GIT_REPO_URL = 'https://github.com/Rapter1990/cryptoexchangeapi.git'
+        BRANCH_NAME = 'main'
+        DOCKERHUB_USERNAME = 'noyandocker'
+        DOCKER_IMAGE_NAME = 'cryptoexchangeapi-jenkins'
+    }
+
+    stages {
+        stage('Checkout') {
+            steps {
+                script {
+                    checkout([
+                        $class: 'GitSCM',
+                        branches: [[name: "*/${env.BRANCH_NAME}"]],
+                        userRemoteConfigs: [[url: "${env.GIT_REPO_URL}"]]
+                    ])
+                }
+            }
+        }
+
+        stage('Build') {
+            agent {
+                    docker {
+                        image 'maven:3.9.9-amazoncorretto-21-alpine'
+                    }
+                }
+            steps {
+                sh 'mvn clean install'
+            }
+        }
+
+        stage('Build Docker Image') {
+            agent {
+                docker {
+                    image 'docker:27.5.1'
+                }
+            }
+            steps {
+                sh "docker build -t ${env.DOCKERHUB_USERNAME}/${env.DOCKER_IMAGE_NAME}:latest ."
+            }
+        }
+
+        stage('Push Docker Image') {
+            agent {
+                docker {
+                    image 'docker:27.5.1'
+                }
+            }
+            steps {
+                withDockerRegistry([credentialsId: 'docker-hub-credentials', url: '']) {
+                    sh "docker push ${env.DOCKERHUB_USERNAME}/${env.DOCKER_IMAGE_NAME}:latest"
+                }
+            }
+        }
+
+    }
+
+    post {
+            always {
+                cleanWs(cleanWhenNotBuilt: false,
+                        deleteDirs: true,
+                        disableDeferredWipeout: true,
+                        notFailBuild: true,
+                        patterns: [[pattern: '.gitignore', type: 'INCLUDE'],
+                                   [pattern: '.propsfile', type: 'EXCLUDE']])
+            }
+    }
+}

jenkins/Dockerfile

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+FROM jenkins/jenkins:lts
+
+# Plugin list
+COPY plugins.txt /usr/share/jenkins/ref/plugins.txt
+RUN jenkins-plugin-cli --plugin-file /usr/share/jenkins/ref/plugins.txt
+
+# For Groovy scripts, init.d directory
+COPY init.groovy.d/ /var/jenkins_home/init.groovy.d/
+
+# Install Docker CLI
+USER root
+RUN apt-get update && apt-get install -y docker.io

jenkins/docker-compose.yml

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+services:
+  jenkins:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: jenkins-server
+    ports:
+      - "8080:8080"    # Expose Jenkins UI on port 8080
+      - "50000:50000"  # Expose port for Jenkins agents
+    volumes:
+      - jenkins_home:/var/jenkins_home   # Persistent Jenkins data
+      - /var/run/docker.sock.raw:/var/run/docker.sock # Mount Docker socket for Docker builds
+      - ../k8s:/var/jenkins_home/k8s # Mount Kubernetes configuration files (optional)
+      - ./init.groovy.d:/var/jenkins_home/init.groovy.d # Mount Jenkins init scripts (optional)
+    environment:
+      JAVA_OPTS: "-Djenkins.install.runSetupWizard=false" # Skip setup wizard (optional)
+    user: root # Run as root to allow installing dependencies
+    networks:
+      - common-network
+
+volumes:
+  jenkins_home:
+
+networks:
+  common-network:
+    driver: bridge

jenkins/init.groovy.d/create-pipeline.groovy

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+import hudson.plugins.git.BranchSpec
+import hudson.plugins.git.GitSCM
+import hudson.plugins.git.UserRemoteConfig
+import jenkins.model.*
+import org.jenkinsci.plugins.workflow.cps.CpsScmFlowDefinition
+
+def instance = Jenkins.getInstance()
+
+def jobName = "cryptoexchangeapi"
+def job = instance.getItem(jobName)
+
+if (job != null) {
+    job.delete()
+}
+
+def pipelineJob = instance.createProject(org.jenkinsci.plugins.workflow.job.WorkflowJob, jobName)
+def definition = new CpsScmFlowDefinition(
+        new GitSCM(
+                [
+                        new UserRemoteConfig("https://github.com/Rapter1990/cryptoexchangeapi.git", null, null, null)
+                ],
+                [new BranchSpec("*/main")],
+                false, Collections.emptyList(),
+                null, null, Collections.emptyList()
+        ),
+        "Jenkinsfile"
+)
+definition.setLightweight(true)
+pipelineJob.setDefinition(definition)
+pipelineJob.save()
+
+println("Pipeline job '${jobName}' has been successfully created!")

jenkins/plugins.txt

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+workflow-aggregator
+git
+job-dsl
+ws-cleanup
+docker-plugin
+docker-workflow
+docker-commons