Update Dockerfile

Jenkinsfile

@@ -1,12 +1,19 @@
 pipeline{
-    agent any
+    agent {
+        dockerfile true
+    }
     parameters {
     string(defaultValue: '100', description: 'Number of lines to cutoff', name: 'CUTOFF', trim: false)
 }
     stages{
+        stage('Docker') {
+            steps {
+                sh 'python3 ./stats.py'
+            }
+      }
         stage('Stage 1'){
             steps{
-                echo 'Init Jenkins File!'
+                echo 'Hello Jenkins!'
             }
         }
         stage('checkout: Check out from version control'){
@@ -17,14 +24,14 @@ pipeline{
         stage('sh: Shell Script'){
             steps{
             withEnv(["CUTOFF=${params.CUTOFF}"]) {
-                sh "chmod 777 ./data.sh"
-                sh "./data.sh"
+                sh "chmod 777 ./script.sh"
+                sh "./script.sh"
             }
         }}
         stage('Archive artifacts'){
             steps{
                 archiveArtifacts 'test.csv'
-                archiveArtifacts 'validation.csv'
+                archiveArtifacts 'dev.csv'
                 archiveArtifacts 'train.csv'
             }
         }