add alert to docs

assets/sass/_alert.scss

@@ -0,0 +1,67 @@
+.close {
+  float: right;
+  font-size: 20px;
+  font-weight: bold;
+  line-height: 18px;
+  color: #000000;
+  text-shadow: 0 1px 0 #ffffff;
+  opacity: 0.2;
+  filter: alpha(opacity=20);
+}
+.close:hover {
+  color: #000000;
+  text-decoration: none;
+  opacity: 0.4;
+  filter: alpha(opacity=40);
+  cursor: pointer;
+}
+
+.alert {
+  padding: 8px 35px 8px 14px;
+  margin-bottom: 18px;
+  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
+  background-color: #fcf8e3;
+  border: 1px solid #fbeed5;
+  -webkit-border-radius: 4px;
+  -moz-border-radius: 4px;
+  border-radius: 4px;
+  color: #c09853;
+  font-size: 15px;
+  line-height: 1.5;
+}
+.alert-heading {
+  color: inherit;
+}
+.alert .close {
+  position: relative;
+  top: -2px;
+  right: -21px;
+  line-height: 18px;
+}
+.alert-success {
+  background-color: #dff0d8;
+  border-color: #d6e9c6;
+  color: #468847;
+}
+.alert-danger,
+.alert-error {
+  background-color: #f2dede;
+  border-color: #eed3d7;
+  color: #b94a48;
+}
+.alert-info {
+  background-color: #d9edf7;
+  border-color: #bce8f1;
+  color: #3a87ad;
+}
+.alert-block {
+  padding-top: 14px;
+  padding-bottom: 14px;
+}
+.alert-block > p,
+.alert-block > ul {
+  margin-bottom: 0;
+}
+.alert-block p + p {
+  margin-top: 5px;
+}

assets/sass/app.scss

@@ -7,6 +7,7 @@
 'instantsearch',
 'instantsearch-theme-algolia',
 'izimodal',
+'alert',
 '../../node_modules/rancher-website-theme/assets/sass/theme';
 
 .modal-content {

layouts/_default/list.html

@@ -14,9 +14,23 @@
       <div class="col-4"></div>
     </div>
 
-    <div class="head-blank"></div>
+    <div class="head-blank">
+    
+    </div>
 
     <div class="row max-sized contents-container background-base-gray-side">
+      
+      {{ $url := urls.Parse .Permalink }}
+      {{ $path := split $url.Path "/" }}
+      {{ $product := index $path 1 }}
+      {{ $version := index $path 2 }}
+      {{ $productVersion := printf "%s/%s" $product $version}}
+      {{ if eq $productVersion "rancher/v2.x" }}
+      <div class="alert alert-notice">
+          <strong>We are transitioning to versioned documentation.</strong> The v2.x docs will no longer be maintained. For Rancher v2.5 docs, go <a href="https://rancher.com/docs/rancher/v2.5/en/">here.</a> For Rancher v2.0-v2.4 docs, go <a href="https://rancher.com/docs/rancher/v2.0-v2.4/en/">here.</a>
+      </div>
+      {{end}}
+      
       <div class="
         col-xl-3
         col-lg-4

nginx.conf

@@ -1,6 +1,6 @@
 map_hash_bucket_size 256;
 map $request_uri $redirect_uri {
-  ~^/docs/rancher/v2.0(/?.*)$   /docs/rancher/v2.x$1;
+  ~^/docs/rancher/v2.0/(.*)$   /docs/rancher/v2.x/$1;
   ~^/docs/rke/v0.1.x(/?.*)$   /docs/rke/latest$1;
   ~^/docs/os/quick-start-guide/?$ /rancher-os;
   ~^/docs/rancher/v1.0/zh/rancher-compose/?$ /docs/rancher/v2.x/en/k8s-in-rancher/workloads/add-a-sidecar/;