fix: use Started instead of listening (#167)

* fix: use Started instead of listening

To avoid breaking existing clients of Ryuk, using a custom Ryuk version with older testcontainers versions.

* fix: update tests

* chor: better message

* docs: fix

* fix: simplify message

README.md

@@ -49,7 +49,7 @@ In the ryuk window you'll see containers/networks/volumes deleted after 10s
 
 ```log
 time=2024-09-30T19:42:30.000+01:00 level=INFO msg=starting connection_timeout=1m0s reconnection_timeout=10s request_timeout=10s shutdown_timeout=10m0s remove_retries=10 retry_offset=-1s port=8080 verbose=false
-time=2024-09-30T19:42:30.001+01:00 level=INFO msg=listening address=[::]:8080
+time=2024-09-30T19:42:30.001+01:00 level=INFO msg="Started"
 time=2024-09-30T19:42:30.001+01:00 level=INFO msg="client processing started"
 time=2024-09-30T19:42:38.002+01:00 level=INFO msg="client connected" address=127.0.0.1:56432 clients=1
 time=2024-09-30T19:42:38.002+01:00 level=INFO msg="adding filter" type=label values="[testing=true testing.sessionid=mysession]"

reaper.go

@@ -140,7 +140,9 @@ func newReaper(ctx context.Context, options ...reaperOption) (*reaper, error) {
 		return nil, fmt.Errorf("listen: %w", err)
 	}
 
-	r.logger.Info("listening", fieldAddress, r.listener.Addr().String())
+	// This log message, in uppercase, is in use in different Testcontainers libraries,
+	// so it is important to keep it as is to not break the current behavior of the libraries.
+	r.logger.Info("Started", fieldAddress, r.listener.Addr().String())
 
 	return r, nil
 }

reaper_test.go

@@ -280,7 +280,7 @@ func testReaperRun(t *testing.T, tc *runTest) (string, error) {
 
 	// Standard checks for basic functionality.
 	log := buf.String()
-	require.Contains(t, log, "listening address="+addr)
+	require.Contains(t, log, "Started")
 	require.Contains(t, log, "client connected")
 	require.Contains(t, log, "adding filter")