feat!: remove deprecated env var

The env var `TORRUST_TRACKER_API_ADMIN_TOKEN` was replaced with `TORRUST_TRACKER_CONFIG_OVERRIDE_HTTP_API__ACCESS_TOKENS__ADMIN`.

After the migration to Figment all configuration options can be
overwritten.

Author: josecelano

packages/configuration/src/lib.rs

@@ -29,9 +29,6 @@ const ENV_VAR_CONFIG_TOML: &str = "TORRUST_TRACKER_CONFIG_TOML";
 /// The `tracker.toml` file location.
 pub const ENV_VAR_CONFIG_TOML_PATH: &str = "TORRUST_TRACKER_CONFIG_TOML_PATH";
 
-/// Env var to overwrite API admin token.
-const ENV_VAR_HTTP_API_ACCESS_TOKENS_ADMIN: &str = "TORRUST_TRACKER_CONFIG_OVERRIDE_HTTP_API__ACCESS_TOKENS__ADMIN";
-
 pub type Configuration = v1::Configuration;
 pub type UdpTracker = v1::udp_tracker::UdpTracker;
 pub type HttpTracker = v1::http_tracker::HttpTracker;
@@ -52,7 +49,6 @@ pub struct TrackerPolicy {
 pub struct Info {
     config_toml: Option<String>,
     config_toml_path: String,
-    api_admin_token: Option<String>,
 }
 
 impl Info {
@@ -66,7 +62,6 @@ impl Info {
     pub fn new(default_config_toml_path: String) -> Result<Self, Error> {
         let env_var_config_toml = ENV_VAR_CONFIG_TOML.to_string();
         let env_var_config_toml_path = ENV_VAR_CONFIG_TOML_PATH.to_string();
-        let env_var_api_admin_token = ENV_VAR_HTTP_API_ACCESS_TOKENS_ADMIN.to_string();
 
         let config_toml = if let Ok(config_toml) = env::var(env_var_config_toml) {
             println!("Loading configuration from environment variable {config_toml} ...");
@@ -86,7 +81,6 @@ impl Info {
         Ok(Self {
             config_toml,
             config_toml_path,
-            api_admin_token: env::var(env_var_api_admin_token).ok(),
         })
     }
 }

packages/configuration/src/v1/mod.rs

@@ -288,10 +288,6 @@ impl Default for Configuration {
 }
 
 impl Configuration {
-    fn override_api_admin_token(&mut self, api_admin_token: &str) {
-        self.http_api.override_admin_token(api_admin_token);
-    }
-
     /// Returns the tracker public IP address id defined in the configuration,
     /// and `None` otherwise.
     #[must_use]
@@ -331,11 +327,7 @@ impl Configuration {
                 .merge(Env::prefixed(CONFIG_OVERRIDE_PREFIX).split(CONFIG_OVERRIDE_SEPARATOR))
         };
 
-        let mut config: Configuration = figment.extract()?;
-
-        if let Some(ref token) = info.api_admin_token {
-            config.override_api_admin_token(token);
-        };
+        let config: Configuration = figment.extract()?;
 
         Ok(config)
     }
@@ -469,7 +461,6 @@ mod tests {
             let info = Info {
                 config_toml: Some(empty_configuration),
                 config_toml_path: "tracker.toml".to_string(),
-                api_admin_token: None,
             };
 
             let configuration = Configuration::load(&info).expect("Could not load configuration from file");
@@ -491,7 +482,6 @@ mod tests {
             let info = Info {
                 config_toml: Some(config_toml),
                 config_toml_path: String::new(),
-                api_admin_token: None,
             };
 
             let configuration = Configuration::load(&info).expect("Could not load configuration from file");
@@ -515,7 +505,6 @@ mod tests {
             let info = Info {
                 config_toml: None,
                 config_toml_path: "tracker.toml".to_string(),
-                api_admin_token: None,
             };
 
             let configuration = Configuration::load(&info).expect("Could not load configuration from file");
@@ -534,27 +523,6 @@ mod tests {
             let info = Info {
                 config_toml: Some(default_config_toml()),
                 config_toml_path: String::new(),
-                api_admin_token: None,
-            };
-
-            let configuration = Configuration::load(&info).expect("Could not load configuration from file");
-
-            assert_eq!(
-                configuration.http_api.access_tokens.get("admin"),
-                Some("NewToken".to_owned()).as_ref()
-            );
-
-            Ok(())
-        });
-    }
-
-    #[test]
-    fn configuration_should_allow_to_overwrite_the_default_tracker_api_token_for_admin_with_the_deprecated_env_var_name() {
-        figment::Jail::expect_with(|_jail| {
-            let info = Info {
-                config_toml: Some(default_config_toml()),
-                config_toml_path: String::new(),
-                api_admin_token: Some("NewToken".to_owned()),
             };
 
             let configuration = Configuration::load(&info).expect("Could not load configuration from file");