迭代的詹金斯(Jenkins)Groovy地图,具有多套

时间:2018-08-06 14:49:37

标签: jenkins groovy jenkins-pipeline jenkins-groovy

我想通过Jenkins groovy管道寻求帮助,该管道从此处复制: Is it possible to create parallel Jenkins Declarative Pipeline stages in a loop?

我希望在映射下将几个个变量集传递给,在并行运行下几个阶段。但是,只有最后一组(地图底部的方括号)被注册为我的地图。

并行阶段运行时,映射成功进行迭代,但仅使用最后一组(当前为install_Stage(it))进行迭代,而忽略其他组。意味着我得到了一个并行显示四个"stage: install ${product}"阶段的管道,仅此而已。根据以下代码,我希望获得四个阶段(网络设置,还原和安装)的三个并行部分:

#!groovy

@Library('ci_builds')

def products = ["A", "B", "C", "D"]

def parallelStagesMap = products.collectEntries {

    switch (it) {
        case "A":
            static_ip_address = "10.100.100.6"; static_vm_name = "install-vm1"; version = "14.1.60"
            break
        case "B":
            static_ip_address = "10.100.100.7"; static_vm_name = "install-vm2"; version = "15.1"
            break
        case "C":
            static_ip_address = "10.100.100.8"; static_vm_name = "install-vm3"; version = "15.1"
            break
        case "D":
            static_ip_address = "10.100.100.9"; static_vm_name = "install-vm4"; version = "15.2"
            break
        default:
            static_ip_address = "The product name is not on the switch list - please enter an ip address"
            version = "The product name is not on the switch list - please enter a version"
            break
    }

    ["${it}" : network_reg(it)]

    ["${it}" : revert_to_snapshot_Stage(it)]

    ["${it}" : install_Stage(it)]

}

def network_reg(product) {
return {
    stage("stage: setup network for ${product}") {
        echo "setting network on ${static_vm_name} with ${static_ip_address}."
        sh script: "sleep 15"
    }
}
}

def revert_to_snapshot_Stage(product) {
return {
    stage("stage: revert ${product}") {
        echo "reverting ${static_vm_name} for ${product} on ${static_ip_address}."
        sh script: "sleep 15"
    }
}
}


def install_Stage(product) {
return {
    stage("stage: install ${product}") {
        echo "installing ${product} on ${static_ip_address}."
        sh script: "sleep 15"
    }
}
}

pipeline {
agent any

stages {
    stage('non-parallel env check') {
        steps {
            echo 'This stage will be executed first.'
        }
    }

    stage('parallel stage') {
        steps {
            script {
                parallel parallelStagesMap
            }
        }
    }
}
}

network_reg和revert_to_snapshot_Stage将不会运行(除非我将它们放置为最后一组而不是[“ $ {it}”:install_Stage(it)]),在这种情况下,同样,只有并行阶段之一是运行)

我不介意使用多种方法来运行多个映射定义,但其他诸如How to define and iterate over map in Jenkinsfile的方法不允许使用完整的多变量映射(超过键+值对)

任何帮助将不胜感激,谢谢!

1 个答案:

答案 0 :(得分:4)

我假设您遇到类似的问题,就像我试图动态构建并行分支以并行执行一样。

两件事非常重要:

  1. 制作循环变量的副本(在您的情况下为it),并仅在并行分支内使用该副本;如果没有,所有分支(闭包)都将引用相同的变量,而该变量当然具有相同的值。这对于闭包而言尤其如此。另请参见:http://groovy-lang.org/closures.html

  2. 请勿使用collectEntries{}。坚持使用Java风格的循环,因为通常情况下,groovy循环无法正常工作。一些.each{}构造可能已经可以使用,但是如果有疑问,请切换到Java循环。另请参阅:Impossibility to iterate over a Map using Groovy within Jenkins Pipeline

下面的示例对我有用。我相信您将能够根据需要进行调整。

def products = ["A", "B", "C", "D"]
def parallelStagesMap = [:]

// use java-style loop
for (def product: products) {
    // make a copy to ensure that each closure will get it's own variable
    def copyOfProduct = product
    parallelStagesMap[product] = {echo "install_Stage($copyOfProduct)"}
}

echo parallelStagesMap.toString()

pipeline {
agent any
    stages {
        stage('parallel stage') {
            steps {
                script {
                    parallel parallelStagesMap
                }
            }
        }
    }
}
  1. 如果它仍然不起作用:检查是否存在并升级您的Pipeline: Groovy插件,因为它们通常可以解决很多问题,这些问题通常在常规中有效,但不会在管道中解决。

您可能想检查以下相关问题,其中也包含一个最小示例: Currying groovy CPS closure for parallel execution