Merged in feature/common-metrics (pull request #73)

Add common metrics

* add common metrics

and sample for using

* updates

* attempt integration

* wip

* working

stubs generate

* docs

* comments

* Merge branch 'main' of bitbucket.org:aarete/query-orchestration into feature/common-metrics

* runner metrics all

* exclude generated

from the coverage

* fix lint

* refactor metrics

* change .gen filename

* new gen

* Merge branch 'main' of bitbucket.org:aarete/query-orchestration into feature/common-metrics

* docs

* main merge

* refactor

* add to generate

* merge main

cmd/docInitRunner/main.go

@@ -37,5 +37,21 @@ func main() {
 		os.Exit(1)
 	}
 
+	// optional add shutdown metrics
+	defer func() {
+		err = cfg.GetMetrics().RecordLifecycleEvent(1.0, "shutdown", "main")
+
+		if err != nil {
+			slog.Error("Failed to record shutdown metric ", "error", err)
+		}
+	}()
+
+	// start and block until server is done
 	server.Listen(ctx)
+
+	// optional shutdown
+	metrics := cfg.GetMetrics()
+	if err := metrics.Shutdown(ctx); err != nil {
+		slog.Error("Error shutting down metrics server", "error", err)
+	}
 }