k8s: add support for template (#230)

Fixes: #37

Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>

molecule/default/templates/pod_template_one.j2

@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    app: "{{ k8s_pod_name }}"
+  name: '{{ k8s_pod_name }}'
+  namespace: '{{ k8s_pod_namespace }}'
+spec:
+  containers:
+  - args:
+    - /bin/sh
+    - -c
+    - while true; do echo $(date); sleep 10; done
+    image: python:3.7-alpine
+    imagePullPolicy: Always
+    name: '{{ k8s_pod_name }}'

molecule/default/templates/pod_template_two.j2

@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    app: '[[ k8s_pod_name ]]'
+  name: '[[ k8s_pod_name ]]'
+  namespace: '[[ k8s_pod_namespace ]]'
+spec:
+  containers:
+  - args:
+    - /bin/sh
+    - -c
+    - while true; do echo $(date); sleep 10; done
+    image: python:3.7-alpine
+    imagePullPolicy: Always
+    name: '[[ k8s_pod_name ]]'