Move custom cloud g-s-guides to setup. (#8951)

content/en/docs/getting-started-guides/coreos/OWNERS

@@ -1,3 +0,0 @@
-reviewers:
-- errordeveloper
-

content/en/docs/setup/custom-cloud/_index.md

@@ -0,0 +1,3 @@
+---
+title: Custom Cloud Solutions
+---

content/en/docs/setup/custom-cloud/coreos.md

@@ -1,6 +1,7 @@
 ---
-title: CoreOS
-toc_hide: true
+title: CoreOS on AWS or GCE
+reviewers:
+- errordeveloper
 ---
 
 {{< toc >}}

static/_redirects

@@ -149,6 +149,9 @@
 /docs/getting-started-guide/*     /docs/setup/ 301
 /docs/getting-started-guides/     /docs/setup/pick-right-solution/ 301
 /docs/getting-started-guides/binary_release/    /docs/setup/building-from-source/ 301
+/docs/getting-started-guides/coreos/     /docs/setup/custom-cloud/coreos/ 301
+/docs/getting-started-guides/kops/     /docs/setup/custom-cloud/kops/ 301
+/docs/getting-started-guides/kubespray/     /docs/setup/custom-cloud/kubespray/ 301
 /docs/getting-started-guides/coreos/azure/     /docs/getting-started-guides/coreos/ 301
 /docs/getting-started-guides/coreos/bare_metal_calico/     /docs/getting-started-guides/coreos/ 301
 /docs/getting-started-guides/docker-multinode/*     /docs/setup/independent/create-cluster-kubeadm/ 301