Update second Jenkinsfile

Jenkinsfile_stats

@@ -1,5 +1,7 @@
 pipeline {
-    agent any
+    agent {
+        docker { image 'ubuntu:latest' }
+    }
     parameters {
         buildSelector(defaultSelector: lastSuccessful(), description: 'Which build to use for copying artifacts', name: 'BUILD_SELECTOR')
     }
@@ -12,5 +14,15 @@ pipeline {
                 archiveArtifacts "stats.txt"
             }
         }
+        stage("Docker Image"){
+            agent {
+                docker {
+                    image "s434804/ium:0.1"
+                }
+            }
+            steps {
+                sh 'python3 ./stats.py'
+            }
+        }
     }
 }