Jenkins 流水线模板 - 方法

Question

我看到了一篇关于定义管道模板的博文here。以下2个声明有什么区别-

vars/myDeliveryPipeline.groovy
def call(Map pipelineParams) {

    pipeline {
        agent any
        stages {
            stage('checkout git') {
                steps {
                    git branch: pipelineParams.branch, credentialsId: 'GitCredentials', url: pipelineParams.scmUrl
                }
            }

            stage('build') {
                steps {
                    sh 'mvn clean package -DskipTests=true'
                }
            }

            stage ('test') {
                steps {
                    parallel (
                        "unit tests": { sh 'mvn test' },
                        "integration tests": { sh 'mvn integration-test' }
                    )
                }
            }

            stage('deploy developmentServer'){
                steps {
                    deploy(pipelineParams.developmentServer, pipelineParams.serverPort)
                }
            }

            stage('deploy staging'){
                steps {
                    deploy(pipelineParams.stagingServer, pipelineParams.serverPort)
                }
            }

            stage('deploy production'){
                steps {
                    deploy(pipelineParams.productionServer, pipelineParams.serverPort)
                }
            }
        }
        post {
            failure {
                mail to: pipelineParams.email, subject: 'Pipeline failed', body: "${env.BUILD_URL}"
            }
        }
    }
}

第二种方法

vars/myDeliveryPipeline.groovy
def call(body) {
    // evaluate the body block, and collect configuration into the object
    def pipelineParams= [:]
    body.resolveStrategy = Closure.DELEGATE_FIRST
    body.delegate = pipelineParams
    body()

    pipeline {
        // our complete declarative pipeline can go in here
        ...
    }
}

Answer 1

这里的本质区别在于在调用期间将管道参数传递给包含管道的方法的用法。

对于第一个示例，您将通过myDeliveryPipeline(params) 直接传递Map：

myDeliveryPipeline(branch: 'master',
                   scmUrl: 'ssh://git@myScmServer.com/repos/myRepo.git',
                   email: 'team@example.com', serverPort: '8080',
                   serverPort: '8080',
                   developmentServer: 'dev-myproject.mycompany.com',
                   stagingServer: 'staging-myproject.mycompany.com',
                   productionServer: 'production-myproject.mycompany.com')

对于第二个示例，您将通过类似于 DSL 的闭包通过 myDeliveryPipeline { params } 传递 Map：

myDeliveryPipeline {
  branch            = 'master'
  scmUrl            = 'ssh://git@myScmServer.com/repos/myRepo.git'
  email             = 'team@example.com'
  serverPort        = '8080'
  developmentServer = 'dev-myproject.mycompany.com'
  stagingServer     = 'staging-myproject.mycompany.com'
  productionServer  = 'production-myproject.mycompany.com'
}

除了参数用法之外，方法是相同的。这将取决于您的喜好。