Merge pull request #12595 from smarterclayton/add_pod_status_ip

Add status.podIP as a valid downward API target

docs/user-guide/downward-api.md

@@ -51,6 +51,7 @@ The following information is available to a `Pod` through the downward API:
 
 *   The pod's name
 *   The pod's namespace
+*   The pod's IP
 
 More information will be exposed through this same API over time.
 
@@ -101,6 +102,10 @@ spec:
           valueFrom:
             fieldRef:
               fieldPath: metadata.namespace
+        - name: MY_POD_IP
+          valueFrom:
+            fieldRef:
+              fieldPath: status.podIP
   restartPolicy: Never
 ```
 

docs/user-guide/downward-api/README.md

@@ -61,8 +61,9 @@ through the pod logs to see that the pod was injected with the correct values:
 
 ```console
 $ kubectl logs dapi-test-pod | grep POD_
-2015-04-30T20:22:18.568024817Z POD_NAME=dapi-test-pod
-2015-04-30T20:22:18.568087688Z POD_NAMESPACE=default
+2015-04-30T20:22:18.568024817Z MY_POD_NAME=dapi-test-pod
+2015-04-30T20:22:18.568087688Z MY_POD_NAMESPACE=default
+2015-04-30T20:22:18.568092435Z MY_POD_IP=10.0.1.6
 ```
 
 

docs/user-guide/downward-api/dapi-pod.yaml

@@ -16,4 +16,8 @@ spec:
           valueFrom:
             fieldRef:
               fieldPath: metadata.namespace
+        - name: MY_POD_IP
+          valueFrom:
+            fieldRef:
+              fieldPath: status.podIP
   restartPolicy: Never