Fix feature gate name conflicts (2/2)

Author: tengqm

content/en/docs/concepts/overview/kubernetes-api.md

@@ -201,6 +201,8 @@ checks).
 
 ### OpenAPI V3
 
+{{< feature-state feature_gate_name="OpenAPIV3" >}}
+
 Kubernetes supports publishing a description of its APIs as OpenAPI v3.
 
 A discovery endpoint `/openapi/v3` is provided to see a list of all

content/en/docs/reference/command-line-tools-reference/feature-gates/Accelerators.md

@@ -0,0 +1,24 @@
+---
+title: Accelerators
+content_type: feature_gate
+
+_build:
+  list: never
+  render: false
+
+stages:
+  - stage: alpha 
+    defaultValue: false
+    fromVersion: "1.6"
+    toVersion: "1.10"
+  - stage: deprecated
+    fromVersion: "1.11"
+    toVersion: "1.11"
+
+removed: true
+---
+Provided an early form of plugin to enable Nvidia GPU support when using
+Docker Engine; no longer available. See
+[Device Plugins](/docs/concepts/extend-kubernetes/compute-storage-net/device-plugins/) for
+an alternative.
+

content/en/docs/reference/command-line-tools-reference/feature-gates/AppArmor.md

@@ -0,0 +1,18 @@
+---
+title: AppArmor
+content_type: feature_gate
+_build:
+  list: never
+  render: false
+
+stages:
+  - stage: beta
+    defaultValue: true
+    fromVersion: "1.4"
+    toVersion: "1.30"
+  - stage: stable
+    defaultValue: true
+    fromVersion: "1.31"
+---
+Enable use of AppArmor mandatory access control for Pods running on Linux nodes.
+See [AppArmor Tutorial](/docs/tutorials/security/apparmor/) for more details.

content/en/docs/reference/command-line-tools-reference/feature-gates/Initializers.md

@@ -0,0 +1,22 @@
+---
+title: Initializers
+content_type: feature_gate
+
+_build:
+  list: never
+  render: false
+
+stages:
+  - stage: alpha 
+    defaultValue: false
+    fromVersion: "1.7"
+    toVersion: "1.13"
+  - stage: deprecated
+    fromVersion: "1.14"
+    toVersion: "1.14"
+
+removed: true
+---
+Allow asynchronous coordination of object creation using the
+Initializers admission plugin.
+

content/en/docs/reference/command-line-tools-reference/feature-gates/KMSv1.md

@@ -0,0 +1,21 @@
+---
+title: KMSv1
+content_type: feature_gate
+_build:
+  list: never
+  render: false
+
+stages:
+  - stage: deprecated
+    defaultValue: true
+    fromVersion: "1.28"  
+    toVersion: "1.28"
+  - stage: deprecated
+    defaultValue: false
+    fromVersion: "1.29"  
+    
+---
+Enables KMS v1 API for encryption at rest. See
+[Using a KMS Provider for data encryption](/docs/tasks/administer-cluster/kms-provider)
+for more details.
+

content/en/docs/reference/command-line-tools-reference/feature-gates/KMSv2.md

@@ -0,0 +1,27 @@
+---
+title: KMSv2
+content_type: feature_gate
+_build:
+  list: never
+  render: false
+
+stages:
+  - stage: alpha 
+    defaultValue: false
+    fromVersion: "1.25"
+    toVersion: "1.26"
+  - stage: beta
+    defaultValue: true
+    fromVersion: "1.27"  
+    toVersion: "1.28" 
+  - stage: stable
+    defaultValue: true
+    fromVersion: "1.29"
+    toVersion: "1.31"
+
+removed: true
+---
+Enables KMS v2 API for encryption at rest. See
+[Using a KMS Provider for data encryption](/docs/tasks/administer-cluster/kms-provider)
+for more details.
+

content/en/docs/reference/command-line-tools-reference/feature-gates/OpenAPIV3.md

@@ -0,0 +1,24 @@
+---
+title: OpenAPIV3
+content_type: feature_gate
+_build:
+  list: never
+  render: false
+
+stages:
+  - stage: alpha 
+    defaultValue: false
+    fromVersion: "1.23"
+    toVersion: "1.23"
+  - stage: beta
+    defaultValue: true
+    fromVersion: "1.24"  
+    toVersion: "1.26" 
+  - stage: stable
+    defaultValue: true
+    fromVersion: "1.27"  
+    toVersion: "1.28" 
+removed: true
+---
+Enables the API server to publish OpenAPI v3.
+

content/en/docs/reference/command-line-tools-reference/feature-gates/Sysctls.md

@@ -0,0 +1,23 @@
+---
+title: Sysctls
+content_type: feature_gate
+
+_build:
+  list: never
+  render: false
+
+stages:
+  - stage: beta 
+    defaultValue: true
+    fromVersion: "1.11"
+    toVersion: "1.20"
+  - stage: stable
+    defaultValue: true
+    fromVersion: "1.21"
+    toVersion: "1.22"    
+
+removed: true
+---
+Enable support for namespaced kernel parameters (sysctls) that can be set for each pod.
+See [sysctls](/docs/tasks/administer-cluster/sysctl-cluster/) for more details.
+

content/en/docs/tutorials/security/apparmor.md

@@ -8,6 +8,8 @@ weight: 30
 
 
 
+{{< feature-state feature_gate_name="AppArmor" >}}
+
 This page shows you how to load AppArmor profiles on your nodes and enforce
 those profiles in Pods. To learn more about how Kubernetes can confine Pods using
 AppArmor, see

layouts/shortcodes/feature-state.html

@@ -42,6 +42,10 @@
         {{- end -}}
       {{- end -}}
 
+      {{- if not $featureGateFound -}}
+        {{- errorf "Invalid feature gate: '%s' is not recognized or lacks a matching description file in '%s'" $feature_gate_name (print "en" $featureGateDescriptionFilesPath) -}}
+      {{- end -}}
+
     {{- end -}}
   {{- end -}}
 {{ end }}