Add Docker support

.jenkins/python2/Dockerfile

@@ -7,4 +7,4 @@ RUN apt-get update \
   && apt-get update \
   && apt-get install -qy --no-install-recommends omc \
   && rm -rf /var/lib/apt/lists/*
-RUN pip2 install --no-cache pytest
+RUN pip2 install --no-cache pytest psutil

.jenkins/python3/Dockerfile

@@ -7,4 +7,4 @@ RUN apt-get update \
   && apt-get update \
   && apt-get install -qy --no-install-recommends omc \
   && rm -rf /var/lib/apt/lists/*
-RUN pip3 install --no-cache pytest
+RUN pip3 install --no-cache pytest psutil

Jenkinsfile

@@ -5,38 +5,42 @@ pipeline {
       parallel {
         stage('python2') {
           agent {
-            dockerfile {
-              // Large image with full OpenModelica build dependencies; lacks omc and OMPython
-              label 'linux'
-              dir '.jenkins/python2'
-              additionalBuildArgs '--pull'
-            }
+            label 'linux'
           }
           steps {
-            sh 'python2 setup.py build'
-            timeout(3) {
-              sh 'python2 /usr/local/bin/py.test -v --junitxml py2.xml tests'
+            script {
+              def deps = docker.build('ompython-jenkins-python2', '--pull .jenkins/python2')
+              def dockergid = sh (script: 'stat -c %g /var/run/docker.sock', returnStdout: true).trim()
+              sh "docker pull openmodelica/openmodelica:v1.16.1-minimal" // Avoid timeout
+              deps.inside("-v /var/run/docker.sock:/var/run/docker.sock --network=host --pid=host --group-add '${dockergid}'") {
+                sh 'python2 setup.py build'
+                timeout(3) {
+                  sh 'python2 /usr/local/bin/py.test -v --junitxml py2.xml tests'
+                }
+                sh 'HOME="$PWD" python2 setup.py install --user'
+              }
+              junit 'py2.xml'
             }
-            sh 'HOME="$PWD" python2 setup.py install --user'
-            junit 'py2.xml'
           }
         }
         stage('python3') {
           agent {
-            dockerfile {
-              // Large image with full OpenModelica build dependencies; lacks omc and OMPython
-              label 'linux'
-              dir '.jenkins/python3'
-              additionalBuildArgs '--pull'
-            }
+            label 'linux'
           }
           steps {
-            sh 'python3 setup.py build'
-            timeout(3) {
-              sh 'python3 /usr/local/bin/py.test -v --junitxml py3.xml tests'
+            script {
+              def deps = docker.build('ompython-jenkins-python3', '--pull .jenkins/python3')
+              def dockergid = sh (script: 'stat -c %g /var/run/docker.sock', returnStdout: true).trim()
+              sh "docker pull openmodelica/openmodelica:v1.16.1-minimal" // Avoid timeout
+              deps.inside("-v /var/run/docker.sock:/var/run/docker.sock --network=host --pid=host --group-add '${dockergid}'") {
+                sh 'python3 setup.py build'
+                timeout(3) {
+                  sh 'python3 /usr/local/bin/py.test -v --junitxml py3.xml tests'
+                }
+                sh 'HOME="$PWD" python3 setup.py install --user'
+              }
+              junit 'py3.xml'
             }
-            sh 'HOME="$PWD" python3 setup.py install --user'
-            junit 'py3.xml'
           }
         }
       }