您如何在声明式管道中处理全局变量? [英] How do you handle global variables in a declarative pipeline?

问题描述

以前提出了有关如何覆盖变量的问题在环境指令中定义，这似乎是不可能的.

Previously asked a question about how to overwrite variables defined in an environment directive and it seems that's not possible.

我想在一个阶段中设置一个变量，并使其可用于其他阶段. 在声明性管道中，似乎唯一的方法是在script {}块中.

I want to set a variable in one stage and have it accessible to other stages. In a declarative pipeline it seems the only way to do this is in a script{} block.

例如，我需要在结帐后设置一些变量.因此，在结帐阶段的最后，我有一个script {}块，用于设置这些var，并且可以在其他阶段访问它们.

For example I need to set some vars after checkout. So at the end of the checkout stage I have a script{} block that sets those vars and they are accessible in other stages.

这有效，但是感觉不对.并且出于可读性考虑，我更愿意在管道的顶部声明这些变量并将其覆盖.因此，这意味着在脚本{}块的开始处有一个设置变量"阶段，该脚本仅定义了vars-太丑了.

This works, but it feels wrong. And for the sake of readability I'd much prefer to declare these variables at the top of the pipeline and have them overwritten. So that would mean having a "set variables" stage at the beginning with a script{} block that just defines vars- thats ugly.

我很确定我在这里缺少明显的功能.声明性管道是否具有全局变量功能，或者我必须使用脚本{}

I'm pretty sure I'm missing an obvious feature here. Do declarative pipelines have a global variable feature or must I use script{}

推荐答案

就像@mkobit所说，您可以在管道块外将变量定义为全局级别.你尝试过吗?

Like @mkobit says, you can define the variable to global level out of pipeline block. Have you tried that?

def my_var
pipeline {
    agent any
    stages {
        stage('Example') {
            steps {
                my_var = 'value1'
            }
        }

        stage('Example2') {
            steps {
                printl(my_var)
            }
        }

    }
}

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