在容器内获取 Pod 信息

metadate.name					# Pod 名称
metadate.namespace				# Pod 所在的命名空间
metadate.uid					# Pod 的 UID
metadate.labels					# Pod 的 label
metadate.labels['key']			# Pod 的某个 Label
metadate.annotations			# Pod 的 annotation
metadate.annotations['key']		# Pod 的某个 annotation

Container 级别的 CPU Limit
Container 级别的 CPU Request
Container 级别的 Memory Limit
Container 级别的 Memory Request
Container 级别的 临时存储空间 Limit
Container 级别的 临时存储空间 Request

status.podIP
spec.serviceAccountName	# Pod 使用的 ServiceAccount 名称
spec.nodeName			# Pod 所在的 Node 的名称
status.hostIP			# Pod 所在的 Node 的 IP 地址

apiVersion: v1
kind: pod
metadate:
  name: depi-envvars-fieldref
spec:
  containers:
  - name: test-container
    image: busybox
    command: [ "sh", "-c" ]
    args:
    - while true; do
	    echo -en '\n';
	    printenv MY_NODE_NAME MY_POD_NAME MY_POD_IP;
	    sleep 10;
	  done;
	env:
	  - name: MY_NODE_NAME
	    valueFrom:
	      fieldRef:
	        fieldPath: spec.nodeName
	  - name: MY_POD_NAME
	    valueFrom:
	      fieldRef:
	        fieldPath: metadate.name
	  - name: MY_POD_IP
	    valueFrom:
	      feildRef:
	        fieldPath: status.podIP
	restartPolicy: Never

apiVersion: v1
kind: pod
metadate:
  name: depi-envvars-resourcefieldref
spec:
  containers:
  - name: test-container
    image: busybox
    command: [ "sh", "-c" ]
    args:
    - while true; do
	    echo -en '\n';
	    printenv MY_CPU_REQUEST MY_MEMORY_LIMIT;
	    sleep 10;
	  done;
	resources:
	  requests:
	    memory: "1Gi"
	    cpu: "250m"
	  limits:
	    memory: "2Gi"
	    cpu: "500mi"
	env:
	  - name: MY_CPU_REQUEST 
	    valueFrom:
	      resourceFieldRef:
	        containerName: test-container
	        resource: requests.cpu
	  - name: MY_MEMORY_LIMIT
	    valueFrom:
	      resourceFieldRef:
	        containerName: test-container
	        resource: limits.memory
	restartPolicy: Never