jenkins学习之Jenkins流水线中怎么使用全局变量

https://stackoverflow.com/questions/53541489/updating-environment-global-variable-in-jenkins-pipeline-from-the-stage-level/53541813

pipeline {
    agent any

    environment {
        FOO = "initial FOO env value"
    }

    stages {
        stage("Stage 1") {
            steps {
                script {
                    echo "FOO is '${FOO}'" // prints: FOO is 'initial FOO env value'

                    env.BAR = "bar"
                }
            }
        }

        stage("Stage 2") {
            steps {
                echo "env.BAR is '${BAR}'" // prints: env.BAR is 'bar'
                echo "FOO is '${FOO}'" // prints: FOO is 'initial FOO env value'
                echo "env.FOO is '${env.FOO}'" // prints: env.FOO is 'initial FOO env value'
                script {
                    FOO = "test2"
                    env.BAR = "bar2"
                }
            }
        }

        stage("Stage 3") {
            steps {
                echo "FOO is '${FOO}'" // prints: FOO is 'test2'
                echo "env.FOO is '${env.FOO}'" // prints: env.FOO is 'initial FOO env value'
                echo "env.BAR is '${BAR}'" // prints: env.BAR is 'bar2'

                script {
                    FOO = "test3"
                }

                echo "FOO is '${FOO}'" // prints: FOO is 'test3'
            }
        }
    }
}

pipeline {
  agent any 

  stages {
    stage("Test") {
      environment {
        FOO = "bar"
      }

      steps {
        script {
          withEnv(["FOO=newbar"]) {
            echo "FOO = ${env.FOO}" // prints: FOO = newbar
          }
        }
      }
    }
  }
}

来源：oschina

链接：https://my.oschina.net/u/4389804/blog/4731750