[FIXED] Jenkins does not accept variable declaration

Issue

I am trying to start a docker image from Jenkins. (Not getting Docker to run from within Jenkins) I think I'm really close but this part has still some issues. Can please anyone help?

    stage('build Dockerimage 1') {
      steps{
        apitestimage = docker.build('apitestimage', '--no-cache=true dockerbuild')
      }
    }

    stage('start Dockerimage and Tests 2') {
      steps{
        apitestimage.inside {
          sh 'cd testing && ctest'           
        }
      }
    }

Jenkins reports: WorkflowScript: 21: Expected a step @ line 21, column 15. apitestimage = docker.build('apitestimage', '--no-cache=true dockerbuild')

and also

WorkflowScript: 27: Method calls on objects not allowed outside "script" blocks. @ line 27, column 13. apitestimage.inside {

Solution

From your error, it shows that you're missing a script block in your steps. You'll need a script block when using the DSL in steps.

stage('build Dockerimage 1') {
  steps{
    script {
      def apitestimage = docker.build('apitestimage', '--no-cache=true dockerbuild')
    }
  }
}

stage('start Dockerimage and Tests 2') {
  steps{
    script {
      apitestimage.inside {
        sh 'cd testing && ctest'
      }           
    }
  }
}

References:

• https://jenkins.io/doc/book/pipeline/syntax/#script

Answered By - Oluwafemi Sule