Add Jenkinsfile to repo

Beginner pipeline

Jenkinsfile

@@ -0,0 +1,14 @@
+pipeline {
+    agent any
+    stages {
+        stage("Build") {
+            steps {
+                sh 'echo "Hello World"'
+                sh '''
+                    echo "Multiline shell steps work too"
+                    ls -lah
+                   '''
+            }
+        }
+    }
+}