static pod not support configmap or secret

Author: chenxuc

content/en/docs/concepts/configuration/configmap.md

@@ -61,6 +61,11 @@ You can write a Pod `spec` that refers to a ConfigMap and configures the contain
 in that Pod based on the data in the ConfigMap. The Pod and the ConfigMap must be in
 the same {{< glossary_tooltip text="namespace" term_id="namespace" >}}.
 
+{{< note >}}
+The `spec` of a {{< glossary_tooltip text="static Pod" term_id="static-pod" >}} cannot refer to a ConfigMap
+or any other API objects.
+{{< /note >}}
+
 Here's an example ConfigMap that has some keys with single values,
 and other keys where the value looks like a fragment of a configuration
 format.

content/en/docs/concepts/configuration/secret.md

@@ -822,7 +822,10 @@ are obtained from the API server.
 This includes any Pods created using `kubectl`, or indirectly via a replication
 controller. It does not include Pods created as a result of the kubelet
 `--manifest-url` flag, its `--config` flag, or its REST API (these are
-not common ways to create Pods.)
+not common ways to create Pods). 
+The `spec` of a {{< glossary_tooltip text="static Pod" term_id="static-pod" >}} cannot refer to a Secret
+or any other API objects.
+
 
 Secrets must be created before they are consumed in Pods as environment
 variables unless they are marked as optional. References to secrets that do

content/en/docs/concepts/workloads/pods/_index.md

@@ -282,6 +282,13 @@ on the Kubernetes API server for each static Pod.
 This means that the Pods running on a node are visible on the API server,
 but cannot be controlled from there.
 
+{{< note >}}
+The `spec` of a static Pod cannot refer to other API objects
+(e.g., {{< glossary_tooltip text="ServiceAccount" term_id="service-account" >}},
+{{< glossary_tooltip text="ConfigMap" term_id="configmap" >}},
+{{< glossary_tooltip text="Secret" term_id="secret" >}}, etc).
+{{< /note >}}
+
 ## Container probes
 
 A _probe_ is a diagnostic performed periodically by the kubelet on a container. To perform a diagnostic, the kubelet can invoke different actions:

content/en/docs/tasks/configure-pod-container/static-pod.md

@@ -31,6 +31,13 @@ Pods to run a Pod on every node, you should probably be using a
 instead.
 {{< /note >}}
 
+{{< note >}}
+The `spec` of a static Pod cannot refer to other API objects
+(e.g., {{< glossary_tooltip text="ServiceAccount" term_id="service-account" >}},
+{{< glossary_tooltip text="ConfigMap" term_id="configmap" >}},
+{{< glossary_tooltip text="Secret" term_id="secret" >}}, etc).
+{{< /note >}}
+
 ## {{% heading "prerequisites" %}}
 
 {{< include "task-tutorial-prereqs.md" >}} {{< version-check >}}