Multibranch pipeline fix

Dockerfile

@@ -16,4 +16,4 @@ COPY ml_training.py ./
 COPY heart_2020_cleaned.csv ./
 
 
-CMD ["python3", "./ml_training.py", EPOCHS]
+CMD ["python3", "./ml_training.py"]

Jenkinsfile.train

@@ -2,14 +2,22 @@ pipeline {
     agent {
         dockerfile true
     }
-    parameters {
-        string(
-            defaultValue: "10",
-            description: 'How many epochs during training?',
-            name: 'epochs'
-        )
-    }
     stages {
+        stage("Setup parameters") {
+            steps {
+                script {
+                    properties([
+                        parameters([
+                            string(
+                                defaultValue: '10',
+                                name: 'EPOCHS',
+                                trim: true
+                            )
+                        ])
+                    ])
+                }
+            }
+        }
         stage("Git clone") {
             steps {
               checkout([$class: 'GitSCM', branches: [[name: '*/master']], extensions: [], userRemoteConfigs: [[credentialsId: 's444465', url: 'https://git.wmi.amu.edu.pl/s444465/ium_444465']]])
@@ -17,10 +25,8 @@ pipeline {
         }
         stage("Training") {
             steps {
-                withEnv(["EPOCHS=${params.EPOCHS}"]) {
                     sh "chmod 777 ml_training.py"
-                    sh "python3 ml_training.py $EPOCHS"
-                }
+                    sh "python3 ml_training.py"
             }
         }
     }