apiVersion: v1
kind: Pod
metadata:
  name: simple-example
  labels:
    role: test-role
spec:
  containers:
    - name: web
      image: nginx
      ports:
        - name: web
          containerPort: 80
          protocol: TCP
      env:
        - name: KEY_1
          value: {{ lookup ('/data/storage/dev/', 'key') }}
        - name: DUPLICATE_KEY_!
          value: {{ lookup ('/data/storage/dev/', 'key') }}