add Jenkinsfile

Jenkinsfile

@@ -0,0 +1,22 @@
+ pipeline{
+     agent any
+     
+     stages{
+         stage ("build"){
+             steps{
+                 echo 'building the application...'
+             }
+         }
+          stage ("test"){
+             steps{
+                 echo 'testing the application...'
+             }
+         }
+         stage ("deploy"){
+             steps{
+                 echo 'deploying the application...'
+             }
+         }
+     }
+     
+ }