Attempt to fix Jenkinsfile build

Jenkinsfile

@@ -1,8 +1,15 @@
-podTemplate(containers: [
-    containerTemplate(name: 'maven', image: 'maven:3.3.9-jdk-8-alpine', ttyEnabled: true, command: 'cat'),
-    containerTemplate(name: 'golang', image: 'golang:1.8.0', ttyEnabled: true, command: 'cat'),
-	containerTemplate(name: 'kaniko', image: 'gcr.io/kaniko-project/executor:latest', imagePullPolicy: 'Always', command: '/busybox/cat', ttyEnabled: true)
-  ]) {
+podTemplate(yaml: """
+kind: Pod
+spec:
+  containers:
+  - name: kaniko
+    image: gcr.io/kaniko-project/executor:debug-539ddefcae3fd6b411a95982a830d987f4214251
+    imagePullPolicy: Always
+    command:
+    - /busybox/cat
+    tty: true
+"""
+  ) {
 
     node(POD_LABEL) {
         stage('Build') {