Jenkins 在文件中定义特定于分支的环境变量

我希望根据multi-piepline作业正在处理的分支，按发布阶段将环境变量传递给

虽然下面的这个例子很有效，但我不喜欢这样的结局：每个分支有一个额外的阶段。因为我正在使用

with CREDENTIALS

插件，所以我需要在该块之前设置

MY_CREDENTIALS

变量。有没有更优雅的方法来解决这个问题

pipeline {
    agent {
        dockerfile true
    }
    stages {

        stage("Config vars for staging") {
            when {
                branch 'staging'
            }
            environment { 
                MY_CREDENTIALS = 'creds-staging'
                MY_ENVIRONMENT = 'production'
            }
            steps {
                sh "echo MY_ENVIRONMENT: $MY_ENVIRONMENT"
            }
        }

        stage("Config vars for production") {
            when {
                branch 'master'
            }
            environment { 
                MY_CREDENTIALS = 'creds-prod'
                MY_ENVIRONMENT = 'staging'
            }
            steps {
                sh "echo MY_ENVIRONMENT: $MY_ENVIRONMENT"
            }
        }

        stage("Publish") {
            steps {
                withCredentials([[$class: 'AmazonWebServicesCredentialsBinding', credentialsId: env.MY_CREDENTIALS, accessKeyVariable: 'AWS_ACCESS_KEY_ID', secretKeyVariable: 'AWS_SECRET_ACCESS_KEY']]) {
                    sh 'make takecareofit'
                }   
            }
        }
    }
}

---

使用switch语句。在下面的示例中，如果分支不是

master

或

staging

，则强制失败：

pipeline {
    agent {
        dockerfile true
    }
    stages {
        stage("Config vars") {
            steps {
                script {
                    switch(branch) { 
                        case 'staging': 
                            MY_CREDENTIALS = 'creds-staging'
                            MY_ENVIRONMENT = 'production'
                            break
                        case "master": 
                            MY_CREDENTIALS = 'creds-prod'
                            MY_ENVIRONMENT = 'staging' 
                            break
                       default:
                            println("Branch value error: " + branch)
                            currentBuild.getRawBuild().getExecutor().interrupt(Result.FAILURE)
                    }
                }
            }
        }
        stage("Publish") {
            steps {
                withCredentials([[$class: 'AmazonWebServicesCredentialsBinding', credentialsId: env.MY_CREDENTIALS, accessKeyVariable: 'AWS_ACCESS_KEY_ID', secretKeyVariable: 'AWS_SECRET_ACCESS_KEY']]) {
                    sh 'make takecareofit'
                }
            }
        }
    }
}

---

也许使用脚本块和if-else语句？谢谢，这就是我最后要做的（除了在同一阶段）