Binding to port 0 (uses a random unused port) works, but does not inform what port it bound to

[mickvandijke]

If you bind the [udp_tracker], [http_tracker] or [http_api] to port 0. The OS will bind to a random unused port.

This is to be expected. Torrust however does not inform the user which ports have been bound to.

This is what the console displays:

2023-02-16T12:35:49.246529+01:00 [torrust_tracker::jobs::udp_tracker][INFO] Starting UDP server on: udp://0.0.0.0:0

While the udp server actually bound to port 52862 in my case.

It would be nice to log the actual bound ports in the console.

[PR #156] provides a wrapper struct for the udp server and http api. These wrapper structs also include the bind_address (udp server) for the udp server or http api.

[josecelano]

THis is already done:

$ cargo run
   Compiling torrust-tracker v3.0.0-alpha.12-develop (/home/josecelano/Documents/git/committer/me/github/torrust/torrust-tracker)
    Finished dev [optimized + debuginfo] target(s) in 6.65s
     Running `target/debug/torrust-tracker`
Loading default configuration file: `./share/default/config/tracker.development.sqlite3.toml` ...
2024-01-16T15:18:43.683723365+00:00 [torrust_tracker::bootstrap::logging][INFO] logging initialized.
2024-01-16T15:18:43.684290661+00:00 [UDP Tracker][INFO] Starting on: udp://0.0.0.0:45543
2024-01-16T15:18:43.684321071+00:00 [UDP Tracker][INFO] Started on: udp://0.0.0.0:45543
2024-01-16T15:18:43.684333341+00:00 [torrust_tracker::bootstrap::jobs][INFO] TLS not enabled
2024-01-16T15:18:43.684407050+00:00 [HTTP Tracker][INFO] Starting on: http://0.0.0.0:36187
2024-01-16T15:18:43.684422710+00:00 [HTTP Tracker][INFO] Started on: http://0.0.0.0:36187
2024-01-16T15:18:43.684431050+00:00 [torrust_tracker::bootstrap::jobs][INFO] TLS not enabled
2024-01-16T15:18:43.684474960+00:00 [API][INFO] Starting on http://127.0.0.1:39717
2024-01-16T15:18:43.684476930+00:00 [API][INFO] Started on http://127.0.0.1:39717
2024-01-16T15:18:43.684488+00:00 [Health Check API][INFO] Starting on: http://127.0.0.1:1313
2024-01-16T15:18:43.684513890+00:00 [Health Check API][INFO] Started on: http://127.0.0.1:1313