kubernetes - 如何获取pod内kubernetes部署的系统主机名？

Question

在kubernetes中我们可以使用环境变量来传递hostIP

 env:
    - name: NODE_IP
      valueFrom:
        fieldRef:
          fieldPath: status.hostIP

同样如何获取hostName而不是HostIP？

Answer 1

env:
- name: MY_NODE_NAME
  valueFrom:
    fieldRef:
      fieldPath: spec.nodeName

参见:https://kubernetes.io/docs/tasks/inject-data-application/environment-variable-expose-pod-information/#the-downward-api