initial jenkins file

Jenkinsfile

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+pipeline {
+    agent none
+    stages {
+        stage('Build') {
+            agent {
+                docker {
+                    image 'python:2-alpine'
+                }
+            }
+            steps {
+                sh 'python -m py_compile sources/add2vals.py sources/calc.py'
+                stash(name: 'compiled-results', includes: 'sources/*.py*')
+            }
+        }
+    }
+}