Merge pull request #50630 from mburke5678/okd-banner

OKD adding EOL banner

Author: mburke5678

_templates/_page_openshift.html.erb

@@ -74,6 +74,16 @@
 
       <% end %>
 
+      <% if ((unsupported_versions.include? version) && (distro_key == "openshift-origin")) %>
+
+        <span>
+          <div class="alert alert-danger" role="alert" id="support-alert">
+            <strong>You are viewing documentation for a release that is no longer maintained.</strong> To view the documentation for the most recent version, see the <a href="https://docs.okd.io/4.11/welcome/index.html" style="color: #545454 !important" class="link-primary">latest OKD docs</a>.
+          </div>
+        </span>
+
+      <% end %>
+
       <li class="sitename">
         <a href="/">
           <%= site_name %></a>
@@ -128,9 +138,29 @@
               <option value="3.66">3.66</option>
               <option value="3.65">3.65</option>
             </select>
-          <% else %>
-            <%= breadcrumb_root %>
-          <% end %>
+        <% else %>
+              <% if (distro_key == "openshift-origin") %>
+                <a href="https://docs.okd.io/<%= version %>/welcome/index.html">
+              <%= distro %>
+              </a>
+              <select id="version-selector" onchange="versionSelector(this);">
+                <option value="latest">latest</option>
+                <option value="4.11">4.11</option>
+                <option value="4.10">4.10</option>
+                <option value="4.9">4.9</option>
+                <option value="4.8">4.8</option>
+                <option value="4.7">4.7</option>
+                <option value="4.6">4.6</option>
+                <option value="3.11">3.11</option>
+                <option value="3.10">3.10</option>
+                <option value="3.9">3.9</option>
+                <option value="3.7">3.7</option>
+                <option value="3.6">3.6</option>
+              </select>
+              <% else %>
+                <%= breadcrumb_root %>
+              <% end %>
+        <% end %>
         <% end %>
       </li>
       <li class="hidden-xs active">