Changed Downward API configuration example

Author: Traci Morrison

dev_guide/downward_api.adoc

@@ -145,10 +145,10 @@ spec:
   volumes:
     - name: podinfo
       metadata: <1>
-        items:  <2>
-          - name: "labels" <3>
-            fieldRef:
-              fieldPath: metadata.labels <4>
+        items: <2>
+          -name: "labels" <3>
+           fieldRef:
+              fieldPath: metadata.labels <4>  
 ----
 <1> The `*metadata*` field of the volume source configures the downward API
 volume.
@@ -184,16 +184,23 @@ spec:
         - name: podinfo
           mountPath: /etc
           readOnly: false
-  volumes:
-    - name: podinfo
-      metadata:
-        items:
-          - name: "labels"
-            fieldRef:
-              fieldPath: metadata.labels
-          - name: "annotations"
-            fieldRef:
-              fieldPath: metadata.annotations
+ volumes:
+   - downwardAPI:
+     name: podinfo
+       defaultMode: 420
+       items:
+      - fieldRef:
+          fieldPath: metadata.name
+        path: pod_name
+      - fieldRef:
+          fieldPath: metadata.namespace
+        path: pod_namespace
+      - fieldRef:
+          fieldPath: metadata.labels
+        path: pod_labels
+      - fieldRef:
+          fieldPath: metadata.annotations
+        path: pod_annotations
   restartPolicy: Never
 ----
 ====