jenkinsfile change

Jenkinsfile

@@ -14,9 +14,14 @@ pipeline {
             }
         }
 
-	stage('Run command in Docker container') {
+        stage('Run Python script') {
             steps {
-                sh 'docker run ium_s487178 python3 ./body_performance.py'
+                script {
+                    docker.image('ium_s487178').inside {
+                        sh 'python my_script.py > output.txt'
+                    }
+                    archiveArtifacts 'output.txt'
+                }
             }
         }
     }