docker args

Dockerfile

@@ -1,7 +1,8 @@
 FROM ubuntu:latest
 
-ENV KAGGLE_USERNAME=alicjaszulecka
-ENV KAGGLE_KEY=default_key
+# Dockerfile
+ARG KAGGLE_USERNAME
+ARG KAGGLE_KEY
 
 RUN apt update && apt install -y python3-pip
 RUN apt install unzip

Jenkinsfile

@@ -1,6 +1,8 @@
 pipeline {
     agent {
-        dockerfile true
+        dockerfile {
+            args '-v /var/run/docker.sock:/var/run/docker.sock'
+        }
     }
     parameters {
         string(name: 'KAGGLE_USERNAME', defaultValue: 'alicjaszulecka', description: 'Kaggle username')
@@ -15,13 +17,14 @@ pipeline {
         }
         stage('Build') {
             steps {
-                 withEnv(["KAGGLE_USERNAME=${params.KAGGLE_USERNAME}",
-                          "KAGGLE_KEY=${params.KAGGLE_KEY}" ]) {
-
-                     sh 'bash ./get_dataset.sh $CUTOFF'
+                script {
+                    def customImage = docker.build("my-custom-image:${BUILD_NUMBER}", "--build-arg KAGGLE_USERNAME=${params.KAGGLE_USERNAME} --build-arg KAGGLE_KEY=${params.KAGGLE_KEY} .")
+                    customImage.inside {
+                        sh 'bash ./get_dataset.sh ${params.CUTOFF}'
+                    }
+                }
                 archiveArtifacts artifacts: 'artifacts/*', onlyIfSuccessful: true
             }
         }
     }
 }
-}