tracing: extract request info into tags

controller/src/main.rs

@@ -44,7 +44,14 @@ struct VersionInfo {
     method = GET,
     path = "/version",
 }]
-#[tracing::instrument]
+#[tracing::instrument(
+  skip(rqctx),
+  fields(
+        http.method=rqctx.request.method().as_str(),
+        http.path=rqctx.request.uri().path(),
+        http.remote_ip=rqctx.request.remote_addr().ip().to_string(),
+    )
+)]
 async fn api_version(
     rqctx: RequestContext<Arc<()>>,
 ) -> Result<HttpResponseOk<VersionInfo>, HttpError> {