Added Jenkinsfile

Author: ldoguin

Jenkinsfile

@@ -1,10 +1,16 @@
 pipeline {
-  agent { dockerfile true }
+  agent {
+    dockerfile {
+      filename 'Dockerfile'
+    }
+
+  }
   stages {
     stage('build') {
       steps {
         sh 'nvm list'
       }
     }
+
   }
-}
+}