k8s 通過環境變量獲取Pod信息

env:
- name: MY_NODE_NAME
    valueFrom:
    fieldRef:
        fieldPath: spec.nodeName                       // 節點名稱
- name: MY_POD_NAME
    valueFrom:
    fieldRef:
        fieldPath: metadata.name                        // pod 名稱
- name: MY_POD_NAMESPACE
    valueFrom:
    fieldRef:
        fieldPath: metadata.namespace              // 命名空間
- name: MY_POD_IP
    valueFrom:
    fieldRef:
        fieldPath: status.podIP                              // pod ip
- name: MY_POD_SERVICE_ACCOUNT
    valueFrom:
    fieldRef:
        fieldPath: spec.serviceAccountName    // 這個不清楚，還沒學習到

官方鏈接：https://kubernetes.io/zh/docs/tasks/inject-data-application/environment-variable-expose-pod-information/