Redirect kustomize docs to the new unified site.

site/content/en/guides/plugins/_index.md

@@ -7,6 +7,8 @@ description: >
     Kustomize plugins guide
 ---
 
+<meta http-equiv="refresh" content="0; url=https://kubectl.docs.kubernetes.io/guides/extending_kustomize/plugins" />
+
 Kustomize offers a plugin framework allowing people to write their own resource _generators_
 and _transformers_.
 

site/content/en/guides/plugins/builtins.md

@@ -6,6 +6,9 @@ description: >
   Builtin Plugins
 ---
 
+<meta http-equiv="refresh" content="0; url=https://kubectl.docs.kubernetes.io/guides/extending_kustomize/builtins" />
+
+
 # Builtin Plugins
 
 A list of kustomize's builtin plugins - both

site/content/en/guides/plugins/execPluginGuidedExample.md

@@ -6,6 +6,9 @@ description: >
     Exec plugin on linux in 60 seconds
 ---
 
+<meta http-equiv="refresh" content="0; url=https://kubectl.docs.kubernetes.io/guides/extending_kustomize/execpluginguidedexample" />
+
+
 This is a (no reading allowed!) 60 second copy/paste guided
 example.  Full plugin docs [here](..).
 

site/content/en/guides/plugins/goPluginCaveats.md

@@ -6,6 +6,8 @@ description: >
     Go plugin Caveats
 ---
 
+<meta http-equiv="refresh" content="0; url=https://kubectl.docs.kubernetes.io/guides/extending_kustomize/goplugincaveats" />
+
 [plugin package]: https://golang.org/pkg/plugin
 [Go modules]: https://github.com/golang/go/wiki/Modules
 [ELF]: https://en.wikipedia.org/wiki/Executable_and_Linkable_Format

site/content/en/guides/plugins/goPluginGuidedExample.md

@@ -6,6 +6,9 @@ description: >
     Go plugin example
 ---
 
+<meta http-equiv="refresh" content="0; url=https://kubectl.docs.kubernetes.io/guides/extending_kustomize/gopluginguidedexample" />
+
+
 # Go Plugin Guided Example for Linux
 
 [SopsEncodedSecrets repository]: https://github.com/monopole/sopsencodedsecrets