Update Jenkinsfile

Jenkinsfile

@@ -17,13 +17,13 @@ pipeline {
                     echo branchName;
 
                     if (branchName == 'dev') {
-                        imageName = 'sulemantalpur6/frontend:dev'
+                        imageName = 'sulemantalpur6/frontend:dev${BUILD_NUMBER}'
                     } else if (branchName == 'master') {
-                        imageName = 'sulemantalpur6/frontend:master'
+                        imageName = 'sulemantalpur6/frontend:master${BUILD_NUMBER}'
                     } else if (branchName == 'QA') {
-                        imageName = 'sulemantalpur6/frontend:QA'
+                        imageName = 'sulemantalpur6/frontend:QA${BUILD_NUMBER}'
                     } else if (branchName == 'UAT') {
-                        imageName = 'sulemantalpur6/frontend:UAT'
+                        imageName = 'sulemantalpur6/frontend:UAT${BUILD_NUMBER}'
                     } else {
                         echo "Branch $branchName not configured for Docker image build."
                         currentBuild.result = 'FAILURE'
@@ -40,12 +40,13 @@ pipeline {
         stage('Push Docker Image to Docker Hub') {
             steps {
                 script {
-                    def branchName = currentBuild.displayName
+                    def branchName = BRANCH_NAME
+                    def buildNumber = BUILD_NUMBER
 
                     if (branchName == 'dev' || branchName == 'master'  || branchName == 'QA' || branchName == 'UAT') {
                         withCredentials([usernamePassword(credentialsId: 'dockerHub', usernameVariable: 'DOCKER_HUB_USERNAME', passwordVariable: 'DOCKER_HUB_PASSWORD')]) {
                             sh "docker login -u $DOCKER_HUB_USERNAME -p $DOCKER_HUB_PASSWORD"
-                            sh "docker push sulemantalpur6/frontend:$branchName"
+                            sh "docker push sulemantalpur6/frontend:$branchName$buildNumber"
                         }
                     }
                 }