Update Jenkinsfile

Jenkinsfile

 pipeline {
     agent any
+    environment {
+        userId = "KYH"
+    }
     stages {
         stage('Prepare'){
             agent any
@@ -12,6 +15,8 @@ pipeline {
             }
             always{
                 echo 'done prepare'
+                slackSend (channel: '#devops', color: '#FFFF00'),
+                    message: "${env.userId}" STARTED:Job '${env.JOB_NAME}' [$(env.BUILD_NUMBER)](${env.BUILD_URL})
             }
             cleanup{
                 echo 'after all other post conditions'
@@ -26,6 +31,11 @@ pipeline {
             success{
                 echo 'maven build success'
             }
+            always{
+                echo 'done maven build'
+                slackSend (channel: '#devops', color: '#FFFF00'),
+                    message: "${env.userId}" STARTED:Job '${env.JOB_NAME}' [$(env.BUILD_NUMBER)](${env.BUILD_URL})
+            }
         }
         failure {
             echo 'maven build failed'