message: Next try (use mobi7 as the docker node)
diff: #!/usr/bin/env groovy
  -node {
  +/*
  +node('master') {
  checkout scm
  docker.withServer('tcp://mobi7.inet.haw-hamburg.de:2376', '674e60ef-6985-48dd-a61c-353806cc7106 (certificate for docker on mobi3 v7 (docker plugin))') {
  @@ -16,19 +17,15 @@ node {
  }
  }
  }
  +*/
  -/*
  pipeline {
  - agent {
  agent {
  // Equivalent to "docker build -f Dockerfile.build --build-arg version=1.0.2 ./build/
  dockerfile {
  filename 'caf-jenkins-fedora-30'
  dir 'dockerfile'
  - label 'my-defined-label'
  - additionalBuildArgs '--build-arg version=1.0.2'
  - args '-v /tmp:/tmp'
  - }
  + label 'docker'
  }
  }
  stages {
  