inital usage of common functions

functions/PodTemplates.groovy

@@ -0,0 +1,40 @@
+#!groovy
+
+// Return random label for runner
+def podLabel() {
+    return "jenkins-${UUID.randomUUID().toString()}"
+}
+
+// return kubernetes pod defination
+def podYaml(def requiredContainers){
+    def dockerRepo = "registry.c.test-chamber-13.lan"
+    def output = """
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: pipeline-worker
+spec:
+  containers:
+"""
+    if requiredContainers['kaniko'] == true {
+        output += """
+  - name: kaniko
+    imagePullPolicy: Always
+    image: ${dockerRepo}/library/kaniko:latest
+    tty: true
+    command:
+    - /busybox/sh
+"""
+    }
+    if requiredContainer['alpine'] == true {
+        output += """
+  - name: alpine
+    imagePullPolicy: Always
+    image: ${dockerRepo}/library/alpine:latest
+    tty: true
+"""
+    }
+
+    return output
+}