Update 'Jenkinsfile'

Jenkinsfile

@@ -38,13 +38,13 @@ pipeline{
               // top-level of the Pipeline, in the same workspace,
               // rather than on a new node entirely:
               reuseNode true
-              registryUrl 'http://workstation:5000/'
           }
       }
       steps {
         sh '''
              printenv
              uname -a
+             exit 1
         '''
       }
     }
@@ -68,4 +68,13 @@ pipeline{
       }
     }
   }
+  post {
+        //always {}
+        //success {}
+        failure {
+            mail bcc: '', body: "<b>Failure</b><br><br>Project: ${env.JOB_NAME} <br>Build Number: ${env.BUILD_NUMBER} <br> Build URL: ${env.BUILD_URL}", cc: '', charset: 'UTF-8', from: '', mimeType: 'text/html', replyTo: '', subject: "ERROR CI: ${env.JOB_NAME}", to: "mrsang@iohub.dev";
+        }
+        //unstable {}
+        //changed {}
+    }
 }