add jenkins file for sonar

Jenkinsfile

@@ -1,10 +1,26 @@
 pipeline {
     agent any 
+
+    environment {
+        SCANNER_HOME=tool 'sonar-scanner'
+    }
+    
     stages {
         stage('Stage 1') {
             steps {
                 echo 'Hello world!' 
             }
         }
+
+        stage("Sonarqube Analysis"){
+            steps{
+                withSonarQubeEnv('sonar-server') {
+                    sh ''' $SCANNER_HOME/bin/sonar-scanner -Dsonar.projectName=Petclinic \
+                    -Dsonar.java.binaries=. \
+                    -Dsonar.projectKey=Petclinic '''
+    
+                }
+            }
+        }
     }
 }