solution.yaml

apiVersion: v1
kind: Pod
metadata:
  name: envars
spec:
  containers:
    - name: fieldref-container
      image: httpd:latest
      imagePullPolicy: IfNotPresent
      command:
        - /bin/sh
        - -c
      args:
        - while true; do echo -en '/n'; printenv NODE_NAME POD_NAME; printenv POD_IP POD_SERVICE_ACCOUNT; sleep 10; done;
      env:
        - name: NODE_NAME
          valueFrom:
            fieldRef:
              fieldPath: spec.nodeName
        - name: POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: POD_IP
          valueFrom:
            fieldRef:
              fieldPath: status.podIP
        - name: POD_SERVICE_ACCOUNT
          valueFrom:
            fieldRef:
              fieldPath: spec.serviceAccountName
  restartPolicy: Never