Show GitLab version for each node in the status page

app/assets/javascripts/geo_nodes.js

@@ -29,6 +29,7 @@ class GeoNodeStatus {
     this.$lastEventSeen = $('.js-last-event-seen', this.$status);
     this.$lastCursorEvent = $('.js-last-cursor-event', this.$status);
     this.$health = $('.js-health-message', this.$status.parent());
+    this.$version = $('.js-gitlab-version', this.$status);
     this.endpoint = this.$el.data('status-url');
     this.$advancedStatus = $('.js-advanced-geo-node-status-toggler', this.$status.parent());
     this.$advancedStatus.on('click', GeoNodeStatus.toggleShowAdvancedStatus.bind(this));
@@ -182,6 +183,7 @@ class GeoNodeStatus {
       healthStatus: status.health_status,
       healthMessage: status.health,
     });
+    this.$version.text(status.version);
 
       // Replication lag can be nil if the secondary isn't actually streaming
     if (status.db_replication_lag_seconds !== null && status.db_replication_lag_seconds >= 0) {

app/views/admin/geo_nodes/index.html.haml

@@ -29,14 +29,25 @@
               .node-badge.current-node Current node
             - if node.primary?
               .node-badge.primary-node Primary
-              %span.help-block Primary node
+              %p
+                %span.help-block Primary node
+              %p
+                %span.help-block
+                  Gitlab version:
+                  %strong.node-info= Gitlab::VERSION
             - else
               = status_loading_icon
               %table.geo-node-status.js-geo-node-status.hidden
+                %tr
+                  %td
+                    .help-block
+                      GitLab Version:
+                  %td
+                    .node-info.prepend-top-10.prepend-left-5.js-gitlab-version
                 - if node.enabled?
                   %tr
                     %td
-                      .help-block
+                      .help-block.prepend-top-10
                         Health Status:
                     %td
                       .health-status.prepend-top-10.prepend-left-5.js-health-status