fix: fix metrics and logs not including domain resolution time

Currently we do logging and metrics capturing
after we did the domain information lookup.

It allows us to add more information to access logs.

But it also distorts metrics because domain information
lookup takes time.

This logic was originally introduced in
https://gitlab.com/gitlab-org/gitlab-pages/-/merge_requests/157/diffs

It didn't matter back than because we didn't lookup domain via API as we do now.
Now it does matter.

So this commits moves metrics and logging middlewares almost to the top of pipeline.

Changelog: fixed

1 files changed, 7 insertions, 17 deletions

diff --git a/internal/logging/logging.go b/internal/logging/logging.go
index edc670d6..6e8533d8 100644
--- a/internal/logging/logging.go
+++ b/internal/logging/logging.go
@@ -52,34 +52,24 @@ func getAccessLogger(format string) (*logrus.Logger, error) {
 }
 
 // BasicAccessLogger configures the GitLab pages basic HTTP access logger middleware
-func BasicAccessLogger(handler http.Handler, format string, extraFields log.ExtraFieldsGeneratorFunc) (http.Handler, error) {
+func BasicAccessLogger(handler http.Handler, format string) (http.Handler, error) {
 	accessLogger, err := getAccessLogger(format)
 	if err != nil {
 		return nil, err
 	}
 
 	return log.AccessLogger(handler,
-		log.WithExtraFields(enrichExtraFields(extraFields)),
+		log.WithExtraFields(extraFields),
 		log.WithAccessLogger(accessLogger),
 		log.WithXFFAllowed(func(sip string) bool { return false }),
 	), nil
 }
 
-func enrichExtraFields(extraFields log.ExtraFieldsGeneratorFunc) log.ExtraFieldsGeneratorFunc {
-	return func(r *http.Request) log.Fields {
-		enrichedFields := log.Fields{
-			"correlation_id": correlation.ExtractFromContext(r.Context()),
-			"pages_https":    request.IsHTTPS(r),
-			"pages_host":     r.Host,
-		}
-
-		if extraFields != nil {
-			for field, value := range extraFields(r) {
-				enrichedFields[field] = value
-			}
-		}
-
-		return enrichedFields
+func extraFields(r *http.Request) log.Fields {
+	return log.Fields{
+		"correlation_id": correlation.ExtractFromContext(r.Context()),
+		"pages_https":    request.IsHTTPS(r),
+		"pages_host":     r.Host,
 	}
 }