Unable to pip install in Docker image as agent through Jenkins declarative pipeline

Question

I have yet another issue with permissions running Docker through Jenkins declarative pipeline. I want to build and publish a Python package through a Jenkins job in a D

Answer 1

I have found what I myself would think is the prettier solution:

stage("Python Test") {
  agent { 
    docker {
      label "docker && linux" 
      image "python:3.7"
    }
  }
  steps {
    withEnv(["HOME=${env.WORKSPACE}"]) {
      sh "pip install -r requirements.txt --user"
      # python stuff
    }
  }
  post {
    cleanup {
      cleanWs()
    }
  }
}

This workaround steers completely around the issue itself, installing the packages at user level. The issue here was that the HOME-directory was not initially writeable either, thus overwriting the HOME directory.