Aggiunto build system docker

Jenkinsfile

@@ -0,0 +1,15 @@
+node {
+    stage('Checkout') {
+        checkout scm
+    }
+    stage('Build docker') {
+        customImage = docker.build("public/mm:${env.BUILD_ID}")
+    }
+    stage('Push to registry') {
+        catchError(buildResult: 'SUCCESS', stageResult: 'FAILURE') {
+            docker.withRegistry('https://docker.briq.it', 'briq-docker-cred') {
+                customImage.push("${env.BRANCH_NAME}")
+            }
+        }
+    }
+}