【k8s】Jenkins实现springcloud应用CI、CD实践

pipeline {
    agent any
    stages {
        stage('Build') {
            steps {
                echo 'Building..'
                sh 'mvn clean package'
            }
        }
        stage('Test') {
            steps {
                echo 'Testing..'
                sh 'mvn test'
            }
        }
        stage('Deploy') {
            steps {
                echo 'Deploying....'
                script {
                    def registry = '127.0.0.1:5000'
                    def image = '127.0.0.1:5000/sample-microservice-gateway'
                    def tag = "v${env.BUILD_NUMBER}"
 
                    withCredentials([usernamePassword(credentialsId: 'registry-credentials', passwordVariable: 'password', usernameVariable: 'username')]) {
                        sh "docker login -u ${username} -p ${password} ${registry}"
                        sh "docker build -t ${image}:${tag} ."
                        sh "docker push ${image}:${tag}"
                    }
                }
            }
        }
    }
    post {
        always {
            echo 'Finished'
        }
    }
}

这个Jenkinsfile演示了如何构建、测试Spring Cloud应用程序，并使用Docker进行容器化，然后将其推送到私有仓库。在Deploy阶段，它使用了withCredentials来安全地处理Docker仓库的登录凭证。最后，在post部分定义了一个always步骤来确保即使构建失败，也总是会执行最后的echo命令。