some observability

src/chromium/rocket.rs

@@ -2,7 +2,7 @@ use std::{sync::Arc, time::Duration};
 use async_trait::async_trait;
 use async_mutex::Mutex;
 use headless_chrome::{Browser, LaunchOptions};
-use tracing::{error, info, debug, trace, warn, trace_span};
+use tracing::{error, info, debug, trace, warn, trace_span, info_span};
 use rocket::{fairing::{Fairing, self}, Rocket, Build, Request, request::{FromRequest, Outcome}, futures::pin_mut, http::Status};
 use tokio::time::sleep;
 
@@ -107,11 +107,14 @@ impl ChromiumCoordinator {
     }
 
     pub async fn get_browser(&self) -> std::result::Result<BrowserHolder, ()> {
+        let span = info_span!("get_browser");
+        let _enter = span.enter();
         loop {
+            info!("trying to get a browser instance");
             match self.try_get_browser().await {
                 Ok(browser) => return Ok(browser),
                 Err(_) => {
-                    trace!("all instances of browser are dead... waiting for    ");
+                    warn!("all instances of browser are dead... waiting for new instance");
                     // all instances may be dead ... we must wait for new instance
                 }
             }