Update Jenkinsfile

Jenkinsfile

@@ -39,13 +39,12 @@ pipeline {
 
 		stage('Building docker image for tai and pushing it') {
 			steps {
-                script {
-                    last_stage = env.STAGE_NAME
-                }
 				ws("$WORKSPACE" + '/tai_build/') {
 					script {
+			  withCredentials([usernamePassword(credentialsId: 'docker-hub-ndiop', passwordVariable: 'Password', usernameVariable: 'Username')]) {
+                  sh ('docker login -u ${env.Username} -p ${env.Password}')
                         docker.withRegistry('', 'docker-hub-ndiop') {
-                          def image = docker.build registry + ":$BUILD_NUMBER"
+                          def image = docker.build registry 
                           image.push()
                         }
 					}