Show information for each secondary node on Geo Nodes page

[ci skip]

app/assets/stylesheets/pages/geo_nodes.scss

-.geo-node-icon-enabled {
+.geo-node-icon-healthy {
   color: $gl-success;
 }
 
-.geo-node-icon-disabled {
+.geo-node-icon-unhealthy {
   color: $gl-danger;
 }
+
+.geo-node-icon-disabled {
+  color: $gray-darkest;
+}

app/controllers/admin/geo_nodes_controller.rb

@@ -3,7 +3,7 @@ class Admin::GeoNodesController < Admin::ApplicationController
   before_action :load_node, only: [:destroy, :repair, :toggle]
 
   def index
-    @nodes = GeoNode.all
+    @nodes = GeoNode.all.map(&:present)
     @node = GeoNode.new
 
     unless Gitlab::Geo.license_allows?

app/helpers/ee/geo_helper.rb

@@ -2,9 +2,14 @@ module EE
   module GeoHelper
     def node_status_icon(node)
       if node.primary?
-        icon 'star fw'
+        icon 'star fw', class: 'has-tooltip', title: 'Primary node'
       else
-        status = node.enabled? ? 'enabled' : 'disabled'
+        status =
+          if node.enabled?
+            node.healthy? ? 'healthy' : 'unhealthy'
+          else
+            'disabled'
+          end
 
         icon 'globe fw',
              class: "geo-node-icon-#{status} has-tooltip",

app/models/geo_node.rb

 class GeoNode < ActiveRecord::Base
+  include Presentable
+
   Status = Struct.new(:health, :repositories, :repositories_synced, :repositories_failed)
 
   belongs_to :geo_node_key, dependent: :destroy

app/presenters/geo_node_presenter.rb

+class GeoNodePresenter < Gitlab::View::Presenter::Delegated
+  presents :geo_node
+
+  def healthy?
+    health.blank?
+  end
+
+  def health
+    status.health
+  end
+
+  def repositories_synced
+    (status.repositories_synced.to_f / status.repositories.to_f) * 100.0
+  end
+
+  def repositories_failed
+    status.repositories_failed
+  end
+
+  private
+
+  def status
+    @status ||= begin
+      _, status = Geo::NodeStatusService.new.call(status_url)
+      status
+    end
+  end
+end

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

@@ -21,8 +21,15 @@
             %span
               = node_status_icon(node)
             %strong= node.url
+            - if node.primary?
+              %span.help-block Primary node
+            - else
               %p
-              %span.help-block= node.primary ? 'Primary node' : 'Secondary node'
+                %span.help-block= "Repositorie synced: #{number_to_percentage(node.repositories_synced, precision: 0)}"
+              %p
+                %span.help-block= "Repositorie failed: #{node.repositories_failed}"
+              %p
+                %span.help-block= node.healthy? ? 'No Health Problems Detected' : node.health
 
           .pull-right
             - if Gitlab::Geo.license_allows?