Allow disabling usage ping in `gitlab.yml`

Setting `usage_ping_enabled` to false in `gitlab.yml`:

1. Disables the usage ping, regardless of the value stored in the database.
2. Prevents the usage ping from being enabled through the admin panel. It can
   only be enabled by either removing the line from `gitlab.yml` and configuring
   through the admin panel, or setting it to true in `gitlab.yml`.

1 files changed, 9 insertions, 1 deletions

diff --git a/app/models/application_setting.rb b/app/models/application_setting.rb
index 54f01f8637e..043f57241a3 100644
--- a/app/models/application_setting.rb
+++ b/app/models/application_setting.rb
@@ -246,7 +246,7 @@ class ApplicationSetting < ActiveRecord::Base
       two_factor_grace_period: 48,
       user_default_external: false,
       polling_interval_multiplier: 1,
-      usage_ping_enabled: true
+      usage_ping_enabled: Settings.gitlab['usage_ping_enabled']
     }
   end
 
@@ -349,6 +349,14 @@ class ApplicationSetting < ActiveRecord::Base
     sidekiq_throttling_enabled
   end
 
+  def usage_ping_can_be_configured?
+    Settings.gitlab.usage_ping_enabled
+  end
+
+  def usage_ping_enabled
+    usage_ping_can_be_configured? && super
+  end
+
   private
 
   def ensure_uuid!