[JIRA] (JENKINS-61950) Environment variables with '$' have '$$' when used in sh step inside a container step.

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kerogers@cloudbees.com (JIRA)

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Apr 17, 2020, 10:50:03 AM4/17/20

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Kenneth Rogers created an issue

Jenkins /

JENKINS-61950

Environment variables with '$' have '$$' when used in sh step inside a container step.

Issue Type:	Bug
Assignee:	Unassigned
Components:	kubernetes-plugin
Created:	2020-04-17 14:49
Environment:	CloudBees Core 2.222.1.1, Kubernetes plugin 1.25.2
Labels:	kubernetes-plugin
Priority:	Minor
Reporter:	Kenneth Rogers

Here's a pipeline that reproduces the bug:

 
                                                                podTemplate {
  node(POD_LABEL) {
    container("jnlp") {
      stage("Run") {
        env.FOO = '$string\$with\$dollars'
        echo "from groovy: ${env.FOO}"
        sh 'env | grep FOO'
        sh 'echo from sh: $FOO'
        }
     }
  }
}
 
                                                            

Here's the output:

from groovy: $string$with$dollars
FOO=$$string$$with$$dollars
from sh: $$string$$with$$dollars

Note that all the dollar signs have been doubled! Note that we've included a call to env, which prints the same incorrect string, so that we can eliminate the possibility of groovy string interpolation issues.

We isolated the problem to the container() function. The bug does not occur with this version of the code, where it is removed, despite that the exact same container (jnlp) is actually used:

 
                                                                podTemplate {
  node(POD_LABEL) {
    stage("Run") {
      env.FOO = '$string\$with\$dollars'
      echo "from groovy: ${env.FOO}"
      sh 'env | grep FOO'
      sh 'echo from sh: $FOO'
      }
    }
  }
}
 
                                                            

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jglick@cloudbees.com (JIRA)

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Apr 17, 2020, 11:42:02 AM4/17/20

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Jesse Glick updated an issue

Jenkins /

JENKINS-61950

Environment variables with '$' have '$$' when used in sh step inside a container step.

Change By:	Jesse Glick
Labels:	kubernetes-plugin