Revert 9225, fix indexing for k8s.io (kubernetes#9767)

layouts/index.headers

@@ -1,8 +1,6 @@
 {{- $cssFilesFromConfig := .Site.Params.pushAssets.css -}}
 {{- $jsFilesFromConfig := .Site.Params.pushAssets.js -}}
 {{- $pages := .Site.RegularPages -}}
-/*
-  X-Robots-Tag: noindex
   Link: </images/favicon.png>; rel=preload; as=image
   {{- range $cssFilesFromConfig -}}
   {{- $cssUrl := printf "/css/%s.css" . }}

netlify.toml

@@ -1,6 +1,8 @@
 [build]
+# This default build command adds the robots noindex directive to the site headers.
+# It is turned off ONLY for the `master` branch deployment on kubernetes.io
 publish = "public"
-command = "hugo"
+command = "hugo --enableGitInfo && cp netlify_noindex_headers.txt public/_headers"
 
 [build.environment]
 HUGO_VERSION = "0.46"
@@ -15,3 +17,8 @@ command = "hugo --enableGitInfo -b $DEPLOY_PRIME_URL"
 
 [context.branch-deploy]
 command = "hugo --enableGitInfo -b $DEPLOY_PRIME_URL"
+
+[context.master]
+# This context is triggered by the master branch and allows search indexing 
+publish = "public"
+command = "hugo"

netlify_noindex_headers.txt

@@ -0,0 +1,3 @@
+# Prevent bots from indexing site
+/*
+  X-Robots-Tag: noindex