Add a simple Jenkinsfile to build things

Jenkinsfile

@@ -0,0 +1,44 @@
+#!/usr/bin/env groovy
+
+pipeline {
+    agent { label 'linux && docker' }
+    options {
+        buildDiscarder(logRotator(numToKeepStr: '10'))
+        timeout(time: 3, unit: 'HOURS')
+    }
+
+    stages {
+        stage('Create builder') {
+            steps {
+                sh 'make builder'
+            }
+        }
+        stage('Build necessary plugins') {
+            when { branch 'master' }
+            steps {
+                sh 'make plugins'
+            }
+        }
+        stage('Create master container') {
+            when { branch 'master' }
+            steps {
+                sh 'make master'
+            }
+            post {
+                always {
+                    archiveArtifacts artifacts: 'build/git-refs.txt', fingerprint: true
+                }
+            }
+        }
+        stage('Test') {
+            steps {
+                sh 'make check'
+            }
+        }
+    }
+    post {
+        always {
+            sh 'make clean'
+        }
+    }
+}