1 files changed, 29 insertions, 0 deletions
diff --git a/lib/gitlab/health_checks/db_check.rb b/lib/gitlab/health_checks/db_check.rb
new file mode 100644
index 00000000000..fd94984f8a2
--- /dev/null
+++ b/lib/gitlab/health_checks/db_check.rb
@@ -0,0 +1,29 @@
+module Gitlab
+  module HealthChecks
+    class DbCheck
+      extend SimpleAbstractCheck
+
+      class << self
+        private
+
+        def metric_prefix
+          'db_ping'
+        end
+
+        def is_successful?(result)
+          result == '1'
+        end
+
+        def check
+          catch_timeout 10.seconds do
+            if Gitlab::Database.postgresql?
+              ActiveRecord::Base.connection.execute('SELECT 1 as ping')&.first&.[]('ping')
+            else
+              ActiveRecord::Base.connection.execute('SELECT 1 as ping')&.first&.first&.to_s
+            end
+          end
+        end
+      end
+    end
+  end
+end