Merge #650: Udpate tracker configuration

940c246 fix: [#648] udpate tracker configuration (Jose Celano)

Pull request description:

  New breaking changes have been applied to the Tracker configuration.

  - Renamed `log_level` to  `threshold`.
  - Tracker mode split into `listed` and `private` flags.
  - Added configuration `version`.

  From:

  ```toml
  [logging]
  log_level = "info"

  [core]
  mode = "public"
  tracker_usage_statistics = true
  inactive_peer_cleanup_interval = 600

  ```

  To:

  ```toml
  version = "2"

  [logging]
  threshold = "info"

  [core]
  inactive_peer_cleanup_interval = 600
  listed = false
  private = false
  tracker_usage_statistics = true

  ```

Top commit has no ACKs.

Tree-SHA512: 1087d0abb8be8a9d36f66fc3e2b5d57136c49e589baae5018ead61041d6d6f7e15e76dfac2a911d54ff53ab72d25da1a75274f71a0842de97157e02f94b0899a

share/default/config/tracker.private.e2e.container.sqlite3.toml

@@ -1,5 +1,7 @@
+version = "2"
+
 [core]
-mode = "private"
+private = true
 
 [core.database]
 driver = "Sqlite3"

share/default/config/tracker.public.e2e.container.sqlite3.toml

@@ -1,5 +1,7 @@
+version = "2"
+
 [core]
-mode = "public"
+private = true
 
 [core.database]
 driver = "Sqlite3"

src/config/mod.rs

@@ -136,12 +136,7 @@ impl From<figment::Error> for Error {
     }
 }
 
-// todo: use https://crates.io/crates/torrust-tracker-primitives for TrackerMode.
-
-/// The mode the tracker will run in.
-///
-/// Refer to [Torrust Tracker Configuration](https://docs.rs/torrust-tracker-configuration)
-/// to know how to configure the tracker to run in each mode.
+/// The mode the tracker is running in.
 #[derive(Serialize, Deserialize, Clone, PartialEq, Eq, Debug)]
 pub enum TrackerMode {
     /// Will track every new info hash and serve every peer.

src/config/v1/tracker.rs

@@ -13,9 +13,7 @@ pub struct Tracker {
     #[serde(default = "Tracker::default_api_url")]
     pub api_url: Url,
 
-    /// The mode of the tracker. For example: `Public`.
-    /// See `TrackerMode` in [`torrust-tracker-primitives`](https://docs.rs/torrust-tracker-primitives)
-    /// crate for more information.
+    /// The mode the tracker is running in.
     #[serde(default = "Tracker::default_mode")]
     pub mode: TrackerMode,