1 files changed, 40 insertions, 0 deletions
diff --git a/lib/gitlab/database/health_status.rb b/lib/gitlab/database/health_status.rb
new file mode 100644
index 00000000000..69bb8a70afd
--- /dev/null
+++ b/lib/gitlab/database/health_status.rb
@@ -0,0 +1,40 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Database
+    module HealthStatus
+      DEFAULT_INIDICATORS = [
+        Indicators::AutovacuumActiveOnTable,
+        Indicators::WriteAheadLog,
+        Indicators::PatroniApdex
+      ].freeze
+
+      class << self
+        def evaluate(context, indicators = DEFAULT_INIDICATORS)
+          indicators.map do |indicator|
+            signal = begin
+              indicator.new(context).evaluate
+            rescue StandardError => e
+              Gitlab::ErrorTracking.track_exception(e, **context.status_checker_info)
+
+              Signals::Unknown.new(indicator, reason: "unexpected error: #{e.message} (#{e.class})")
+            end
+
+            log_signal(signal, context) if signal.log_info?
+
+            signal
+          end
+        end
+
+        def log_signal(signal, context)
+          Gitlab::Database::HealthStatus::Logger.info(**context.status_checker_info.merge(
+            health_status_indicator: signal.indicator_class.to_s,
+            indicator_signal: signal.short_name,
+            signal_reason: signal.reason,
+            message: "#{context.status_checker} signaled: #{signal}"
+          ))
+        end
+      end
+    end
+  end
+end