Example of ConfigMaps and PodSpecs

configmap.yaml

apiVersion: v1
data:
  endpoint_deadline: 5s
  listen_addr: "0.0.0.0"
  listen_port: "50051"
metadata:
  name: heimdall
  namespace: default

env_spec.yaml

env:
  - name: LISTEN_ADDR
    valueFrom:
      configMapKeyRef:
        name: heimdall
        key: listen_addr
  - name: LISTEN_PORT
    valueFrom:
      configMapKeyRef:
        name: heimdall
        key: listen_port