diff --git a/Jenkinsfile.pjt b/Jenkinsfile.pjt
index bf0d869..3d7c29f 100644
--- a/Jenkinsfile.pjt
+++ b/Jenkinsfile.pjt
@@ -224,5 +224,27 @@ pipeline {
       }
     }
 
+
+    stage('12) registry docker image cleanup') {
+      steps {
+        withCredentials([usernamePassword(
+          credentialsId: DOCKER_CRED,
+          usernameVariable: 'DOCKER_USER',
+          passwordVariable: 'DOCKER_PASS'
+        )]) {
+          sh '''
+            set -e
+
+            echo "[1/2] docker registry login"
+            echo "$DOCKER_PASS" | docker login ${REGISTRY_HOST} -u "$DOCKER_USER" --password-stdin
+
+            curl -u $REG_USER:$REG_PASS https://${REGISTRY_HOST}/v2/${IMAGE_REPO}/tags/list
+
+            docker logout ${REGISTRY_HOST}
+          '''
+        }
+      }
+    }
+
   }
 }