Merge #598: Configuration overhaul: rename env vars

97e3634 refactor: [#596] rename env vars (Jose Celano)
5910fda refactor: [#596] move env var constants to config mod (Jose Celano)
b8d0f98 refactor: [#596] merge E2E and prod common env var constants (Jose Celano)
fc1528d feat: [#596] rename common E2E env vars (Jose Celano)

Pull request description:

  Rename env vars:

  - [x] To use standard names for E2E tests. E2E tests should use standard names when vars are not specified for E2E tests. For example: `TORRUST_INDEX_TRACKER_API_TOKEN` -> `TORRUST_INDEX_CONFIG_OVERRIDE_TRACKER__TOKEN`.
  - [x] To follow Figment conventions.
  - [x] To improve naming. For example, make them more specific: `TORRUST_INDEX_CONFIG` -> `TORRUST_INDEX_CONFIG_TOML`.

ACKs for top commit:
  josecelano:
    ACK 97e3634

Tree-SHA512: d002d64c24d183472bd98348267d0c8e7ad1b5e02b3962a2df3ccb7b47ebf91f645af0ed3fe9fcc887153c4d04dbf0bf88c9d4a827e408c178b965832e9a103b

.env.local

@@ -1,6 +1,6 @@
 DATABASE_URL=sqlite://storage/database/data.db?mode=rwc
-TORRUST_INDEX_CONFIG=
-TORRUST_INDEX_AUTH_SECRET_KEY=MaxVerstappenWC2021
+TORRUST_INDEX_CONFIG_TOML=
+TORRUST_INDEX_CONFIG_OVERRIDE_AUTH__SECRET_KEY=MaxVerstappenWC2021
 USER_ID=1000
 TORRUST_TRACKER_CONFIG_TOML=
 TORRUST_TRACKER_CONFIG_OVERRIDE_DB_DRIVER=Sqlite3

Containerfile

@@ -97,13 +97,13 @@ FROM gcr.io/distroless/cc-debian12:debug as runtime
 RUN ["/busybox/cp", "-sp", "/busybox/sh","/busybox/cat","/busybox/ls","/busybox/env", "/bin/"]
 COPY --from=gcc --chmod=0555 /usr/local/bin/su-exec /bin/su-exec
 
-ARG TORRUST_INDEX_PATH_CONFIG="/etc/torrust/index/index.toml"
+ARG TORRUST_INDEX_CONFIG_TOML_PATH="/etc/torrust/index/index.toml"
 ARG TORRUST_INDEX_DATABASE_DRIVER="Sqlite3"
 ARG USER_ID=1000
 ARG API_PORT=3001
 ARG IMPORTER_API_PORT=3002
 
-ENV TORRUST_INDEX_PATH_CONFIG=${TORRUST_INDEX_PATH_CONFIG}
+ENV TORRUST_INDEX_CONFIG_TOML_PATH=${TORRUST_INDEX_CONFIG_TOML_PATH}
 ENV TORRUST_INDEX_DATABASE_DRIVER=${TORRUST_INDEX_DATABASE_DRIVER}
 ENV USER_ID=${USER_ID}
 ENV API_PORT=${API_PORT}

README.md

@@ -83,14 +83,14 @@ cp ./share/default/config/index.development.sqlite3.toml ./storage/index/etc/ind
 vim ./storage/index/etc/index.toml
 
 # Run the index with the updated configuration:
-TORRUST_INDEX_PATH_CONFIG="./storage/index/etc/index.toml" cargo run
+TORRUST_INDEX_CONFIG_TOML_PATH="./storage/index/etc/index.toml" cargo run
 ```
 
 _Optionally, you may choose to supply the entire configuration as an environmental variable:_
 
 ```sh
 # Use a configuration supplied on an environmental variable:
-TORRUST_INDEX_CONFIG=$(cat "./storage/index/etc/index.toml") cargo run
+TORRUST_INDEX_CONFIG_TOML=$(cat "./storage/index/etc/index.toml") cargo run
 ```
 
 _For deployment, you __should__ override:
@@ -100,9 +100,9 @@ _For deployment, you __should__ override:
 ```sh
 # Please use the secret that you generated for the torrust-tracker configuration.
 # Override secret in configuration using an environmental variable
-TORRUST_INDEX_CONFIG=$(cat "./storage/index/etc/index.toml") \
-  TORRUST_INDEX_TRACKER_API_TOKEN=$(cat "./storage/tracker/lib/tracker_api_admin_token.secret") \
-  TORRUST_INDEX_AUTH_SECRET_KEY="MaxVerstappenWC2021" \
+TORRUST_INDEX_CONFIG_TOML=$(cat "./storage/index/etc/index.toml") \
+  TORRUST_INDEX_CONFIG_OVERRIDE_TRACKER__TOKEN=$(cat "./storage/tracker/lib/tracker_api_admin_token.secret") \
+  TORRUST_INDEX_CONFIG_OVERRIDE_AUTH__SECRET_KEY="MaxVerstappenWC2021" \
   cargo run
 ```
 

compose.yaml

@@ -9,11 +9,11 @@ services:
     tty: true
     environment:
       - USER_ID=${USER_ID}
-      - TORRUST_INDEX_CONFIG=${TORRUST_INDEX_CONFIG}
+      - TORRUST_INDEX_CONFIG_TOML=${TORRUST_INDEX_CONFIG_TOML}
       - TORRUST_INDEX_DATABASE=${TORRUST_INDEX_DATABASE:-e2e_testing_sqlite3}
       - TORRUST_INDEX_DATABASE_DRIVER=${TORRUST_INDEX_DATABASE_DRIVER:-sqlite3}
-      - TORRUST_INDEX_TRACKER_API_TOKEN=${TORRUST_INDEX_TRACKER_API_TOKEN:-MyAccessToken}
-      - TORRUST_INDEX_AUTH_SECRET_KEY=${TORRUST_INDEX_AUTH_SECRET_KEY:-MaxVerstappenWC2021}
+      - TORRUST_INDEX_CONFIG_OVERRIDE_TRACKER__TOKEN=${TORRUST_INDEX_CONFIG_OVERRIDE_TRACKER__TOKEN:-MyAccessToken}
+      - TORRUST_INDEX_CONFIG_OVERRIDE_AUTH__SECRET_KEY=${TORRUST_INDEX_CONFIG_OVERRIDE_AUTH__SECRET_KEY:-MaxVerstappenWC2021}
     networks:
       - server_side
     ports:

contrib/dev-tools/container/e2e/mysql/e2e-env-down.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
 
-TORRUST_INDEX_CONFIG=$(cat ./share/default/config/index.e2e.container.mysql.toml) \
+TORRUST_INDEX_CONFIG_TOML=$(cat ./share/default/config/index.e2e.container.mysql.toml) \
 TORRUST_TRACKER_CONFIG_TOML=$(cat ./share/default/config/tracker.e2e.container.sqlite3.toml) \
     docker compose down

contrib/dev-tools/container/e2e/mysql/e2e-env-up.sh

@@ -4,10 +4,10 @@ TORRUST_INDEX_CONFIG=$(cat ./share/default/config/index.e2e.container.mysql.toml
     docker compose build
 
 USER_ID=${USER_ID:-1000} \
-    TORRUST_INDEX_CONFIG=$(cat ./share/default/config/index.e2e.container.mysql.toml) \
+    TORRUST_INDEX_CONFIG_TOML=$(cat ./share/default/config/index.e2e.container.mysql.toml) \
     TORRUST_INDEX_DATABASE="torrust_index_e2e_testing" \
     TORRUST_INDEX_DATABASE_DRIVER="mysql" \
-    TORRUST_INDEX_TRACKER_API_TOKEN="MyAccessToken" \
+    TORRUST_INDEX_CONFIG_OVERRIDE_TRACKER__TOKEN="MyAccessToken" \
     TORRUST_INDEX_MYSQL_DATABASE="torrust_index_e2e_testing" \
     TORRUST_TRACKER_CONFIG_TOML=$(cat ./share/default/config/tracker.e2e.container.sqlite3.toml) \
     TORRUST_TRACKER_DATABASE="e2e_testing_sqlite3" \

contrib/dev-tools/container/e2e/mysql/run-e2e-tests.sh

@@ -40,7 +40,7 @@ docker ps
 
 # Run E2E tests with shared app instance
 TORRUST_INDEX_E2E_SHARED=true \
-    TORRUST_INDEX_E2E_PATH_CONFIG="./share/default/config/index.e2e.container.mysql.toml" \
+    TORRUST_INDEX_CONFIG_TOML_PATH="./share/default/config/index.e2e.container.mysql.toml" \
     TORRUST_INDEX_E2E_DB_CONNECT_URL="mysql://root:root_secret_password@localhost:3306/torrust_index_e2e_testing" \
     cargo test ||
     {

contrib/dev-tools/container/e2e/sqlite/e2e-env-down.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
 
-TORRUST_INDEX_CONFIG=$(cat ./share/default/config/index.e2e.container.sqlite3.toml) \
+TORRUST_INDEX_CONFIG_TOML=$(cat ./share/default/config/index.e2e.container.sqlite3.toml) \
 TORRUST_TRACKER_CONFIG_TOML=$(cat ./share/default/config/tracker.e2e.container.sqlite3.toml) \
     docker compose down

contrib/dev-tools/container/e2e/sqlite/e2e-env-up.sh

@@ -1,14 +1,14 @@
 #!/bin/bash
 
-TORRUST_INDEX_CONFIG=$(cat ./share/default/config/index.e2e.container.sqlite3.toml) \
+TORRUST_INDEX_CONFIG_TOML=$(cat ./share/default/config/index.e2e.container.sqlite3.toml) \
     docker compose build
 
 USER_ID=${USER_ID:-1000} \
-    TORRUST_INDEX_CONFIG=$(cat ./share/default/config/index.e2e.container.sqlite3.toml) \
+    TORRUST_INDEX_CONFIG_TOML=$(cat ./share/default/config/index.e2e.container.sqlite3.toml) \
     TORRUST_INDEX_DATABASE="e2e_testing_sqlite3" \
     TORRUST_INDEX_DATABASE_DRIVER="sqlite3" \
-    TORRUST_INDEX_TRACKER_API_TOKEN="MyAccessToken" \
-    TORRUST_INDEX_AUTH_SECRET_KEY="MaxVerstappenWC2021" \
+    TORRUST_INDEX_CONFIG_OVERRIDE_TRACKER__TOKEN="MyAccessToken" \
+    TORRUST_INDEX_CONFIG_OVERRIDE_AUTH__SECRET_KEY="MaxVerstappenWC2021" \
     TORRUST_TRACKER_CONFIG_TOML=$(cat ./share/default/config/tracker.e2e.container.sqlite3.toml) \
     TORRUST_TRACKER_DATABASE="e2e_testing_sqlite3" \
     TORRUST_TRACKER_CONFIG_OVERRIDE_DB_DRIVER="Sqlite3" \

contrib/dev-tools/container/e2e/sqlite/run-e2e-tests.sh

@@ -38,7 +38,7 @@ docker ps
 
 # Run E2E tests with shared app instance
 TORRUST_INDEX_E2E_SHARED=true \
-    TORRUST_INDEX_E2E_PATH_CONFIG="./share/default/config/index.e2e.container.sqlite3.toml" \
+    TORRUST_INDEX_CONFIG_TOML_PATH="./share/default/config/index.e2e.container.sqlite3.toml" \
     TORRUST_INDEX_E2E_DB_CONNECT_URL="sqlite://./storage/index/lib/database/e2e_testing_sqlite3.db?mode=rwc" \
     cargo test ||
     {

contrib/dev-tools/container/run.sh

@@ -1,11 +1,11 @@
 #!/bin/bash
 
 USER_ID=${USER_ID:-1000}
-TORRUST_INDEX_CONFIG=$(cat config.toml)
+TORRUST_INDEX_CONFIG_TOML=$(cat config.toml)
 
 docker run -it \
     --user="$USER_ID" \
     --publish 3001:3001/tcp \
-    --env TORRUST_INDEX_CONFIG="$TORRUST_INDEX_CONFIG" \
+    --env TORRUST_INDEX_CONFIG_TOML="$TORRUST_INDEX_CONFIG_TOML" \
     --volume "$(pwd)/storage":"/app/storage" \
     torrust-index

docs/containers.md

@@ -147,11 +147,11 @@ Environmental variables are loaded through the `--env`, in the format `--env VAR
 
 The following environmental variables can be set:
 
-- `TORRUST_INDEX_PATH_CONFIG` - The in-container path to the index configuration file, (default: `"/etc/torrust/index/index.toml"`).
-- `TORRUST_INDEX_TRACKER_API_TOKEN` - Override of the admin token. If set, this value overrides any value set in the config.
-- `TORRUST_INDEX_AUTH_SECRET_KEY` - Override of the auth secret key. If set, this value overrides any value set in the config.
+- `TORRUST_INDEX_CONFIG_TOML_PATH` - The in-container path to the index configuration file, (default: `"/etc/torrust/index/index.toml"`).
+- `TORRUST_INDEX_CONFIG_OVERRIDE_TRACKER__TOKEN` - Override of the admin token. If set, this value overrides any value set in the config.
+- `TORRUST_INDEX_CONFIG_OVERRIDE_AUTH__SECRET_KEY` - Override of the auth secret key. If set, this value overrides any value set in the config.
 - `TORRUST_INDEX_DATABASE_DRIVER` - The database type used for the container, (options: `sqlite3`, `mysql`, default `sqlite3`). Please Note: This dose not override the database configuration within the `.toml` config file.
-- `TORRUST_INDEX_CONFIG` - Load config from this environmental variable instead from a file, (i.e: `TORRUST_INDEX_CONFIG=$(cat index-index.toml)`).
+- `TORRUST_INDEX_CONFIG_TOML` - Load config from this environmental variable instead from a file, (i.e: `TORRUST_INDEX_CONFIG_TOML=$(cat index-index.toml)`).
 - `USER_ID` - The user id for the runtime crated `torrust` user. Please Note: This user id should match the ownership of the host-mapped volumes, (default `1000`).
 - `API_PORT` - The port for the index API. This should match the port used in the configuration, (default `3001`).
 
@@ -201,8 +201,8 @@ mkdir -p ./storage/index/lib/ ./storage/index/log/ ./storage/index/etc/
 
 ## Run Torrust Index Container Image
 docker run -it \
-    --env TORRUST_INDEX_TRACKER_API_TOKEN="MySecretToken" \
-    --env TORRUST_INDEX_AUTH_SECRET_KEY="MaxVerstappenWC2021" \
+    --env TORRUST_INDEX_CONFIG_OVERRIDE_TRACKER__TOKEN="MySecretToken" \
+    --env TORRUST_INDEX_CONFIG_OVERRIDE_AUTH__SECRET_KEY="MaxVerstappenWC2021" \
     --env USER_ID="$(id -u)" \
     --publish 0.0.0.0:3001:3001/tcp \
     --volume ./storage/index/lib:/var/lib/torrust/index:Z \
@@ -222,7 +222,7 @@ mkdir -p ./storage/index/lib/ ./storage/index/log/ ./storage/index/etc/
 
 ## Run Torrust Index Container Image
 podman run -it \
-    --env TORRUST_INDEX_TRACKER_API_TOKEN="MySecretToken" \
+    --env TORRUST_INDEX_CONFIG_OVERRIDE_TRACKER__TOKEN="MySecretToken" \
     --env USER_ID="$(id -u)" \
     --publish 0.0.0.0:3001:3001/tcp \
     --volume ./storage/index/lib:/var/lib/torrust/index:Z \

share/default/config/index.container.mysql.toml

@@ -1,6 +1,6 @@
 # Please override the following settings with environmental variable!
-# tracker::token   -> `TORRUST_INDEX_TRACKER_API_TOKEN`
-# auth::secret_key -> `TORRUST_INDEX_AUTH_SECRET_KEY`
+# tracker::token   -> `TORRUST_INDEX_CONFIG_OVERRIDE_TRACKER__TOKEN`
+# auth::secret_key -> `TORRUST_INDEX_CONFIG_OVERRIDE_AUTH__SECRET_KEY`
 
 log_level = "info"
 

share/default/config/index.container.sqlite3.toml

@@ -4,7 +4,7 @@ log_level = "info"
 name = "Torrust"
 
 # Please override the tracker token setting the
-#    `TORRUST_INDEX_TRACKER_API_TOKEN`
+#    `TORRUST_INDEX_CONFIG_OVERRIDE_TRACKER__TOKEN`
 #                     environmental variable!
 
 [tracker]

share/default/config/index.e2e.container.mysql.toml

@@ -1,6 +1,6 @@
 # Please override the following settings with environmental variable!
-# tracker::token   -> `TORRUST_INDEX_TRACKER_API_TOKEN`
-# auth::secret_key -> `TORRUST_INDEX_AUTH_SECRET_KEY`
+# tracker::token   -> `TORRUST_INDEX_CONFIG_OVERRIDE_TRACKER__TOKEN`
+# auth::secret_key -> `TORRUST_INDEX_CONFIG_OVERRIDE_AUTH__SECRET_KEY`
 
 log_level = "info"
 

share/default/config/index.e2e.container.sqlite3.toml

@@ -1,6 +1,6 @@
 # Please override the following settings with environmental variable!
-# tracker::token   -> `TORRUST_INDEX_TRACKER_API_TOKEN`
-# auth::secret_key -> `TORRUST_INDEX_AUTH_SECRET_KEY`
+# tracker::token   -> `TORRUST_INDEX_CONFIG_OVERRIDE_TRACKER__TOKEN`
+# auth::secret_key -> `TORRUST_INDEX_CONFIG_OVERRIDE_AUTH__SECRET_KEY`
 
 log_level = "info"
 

src/bootstrap/config.rs

@@ -6,19 +6,6 @@
 
 use crate::config::{Configuration, Info};
 
-/// The whole `index.toml` file content. It has priority over the config file.
-/// Even if the file is not on the default path.
-const ENV_VAR_CONFIG: &str = "TORRUST_INDEX_CONFIG";
-
-/// Token needed to communicate with the Torrust Tracker
-const ENV_VAR_API_ADMIN_TOKEN: &str = "TORRUST_INDEX_TRACKER_API_TOKEN";
-
-/// Secret key used to encrypt and decrypt
-const ENV_VAR_AUTH_SECRET_KEY: &str = "TORRUST_INDEX_AUTH_SECRET_KEY";
-
-/// The `index.toml` file location.
-pub const ENV_VAR_PATH_CONFIG: &str = "TORRUST_INDEX_PATH_CONFIG";
-
 // Default values
 pub const DEFAULT_PATH_CONFIG: &str = "./share/default/config/index.development.sqlite3.toml";
 
@@ -30,7 +17,7 @@ pub const ENV_VAR_CORS_PERMISSIVE: &str = "TORRUST_INDEX_API_CORS_PERMISSIVE";
 /// There are two methods to inject the configuration:
 ///
 /// 1. By using a config file: `index.toml`.
-/// 2. Environment variable: `TORRUST_INDEX_CONFIG`. The variable contains the same contents as the `index.toml` file.
+/// 2. Environment variable: `TORRUST_INDEX_CONFIG_TOML`. The variable contains the same contents as the `index.toml` file.
 ///
 /// Environment variable has priority over the config file.
 ///
@@ -39,17 +26,10 @@ pub const ENV_VAR_CORS_PERMISSIVE: &str = "TORRUST_INDEX_API_CORS_PERMISSIVE";
 /// # Panics
 ///
 /// Will panic if it can't load the configuration from either
-/// `./index.toml` file or the env var `TORRUST_INDEX_CONFIG`.
+/// `./index.toml` file or the env var `TORRUST_INDEX_CONFIG_TOML`.
 #[must_use]
 pub fn initialize_configuration() -> Configuration {
-    let info = Info::new(
-        ENV_VAR_CONFIG.to_string(),
-        ENV_VAR_PATH_CONFIG.to_string(),
-        DEFAULT_PATH_CONFIG.to_string(),
-        ENV_VAR_API_ADMIN_TOKEN.to_string(),
-        ENV_VAR_AUTH_SECRET_KEY.to_string(),
-    )
-    .unwrap();
+    let info = Info::new(DEFAULT_PATH_CONFIG.to_string()).unwrap();
 
     Configuration::load(&info).unwrap()
 }

src/config/mod.rs

@@ -31,9 +31,25 @@ pub type EmailOnSignup = v1::auth::EmailOnSignup;
 
 /// Prefix for env vars that overwrite configuration options.
 const CONFIG_OVERRIDE_PREFIX: &str = "TORRUST_INDEX_CONFIG_OVERRIDE_";
+
 /// Path separator in env var names for nested values in configuration.
 const CONFIG_OVERRIDE_SEPARATOR: &str = "__";
 
+/// The whole `index.toml` file content. It has priority over the config file.
+/// Even if the file is not on the default path.
+pub const ENV_VAR_CONFIG_TOML: &str = "TORRUST_INDEX_CONFIG_TOML";
+
+/// The `index.toml` file location.
+pub const ENV_VAR_CONFIG_TOML_PATH: &str = "TORRUST_INDEX_CONFIG_TOML_PATH";
+
+/// Token needed to communicate with the Torrust Tracker.
+/// Deprecated. Use `TORRUST_INDEX_CONFIG_OVERRIDE_TRACKER__TOKEN`.
+pub const ENV_VAR_TRACKER_API_ADMIN_TOKEN: &str = "TORRUST_INDEX_TRACKER_API_TOKEN";
+
+/// Secret key used to encrypt and decrypt
+/// Deprecated. Use `TORRUST_INDEX_CONFIG_OVERRIDE_AUTH__SECRET_KEY`.
+pub const ENV_VAR_AUTH_SECRET_KEY: &str = "TORRUST_INDEX_AUTH_SECRET_KEY";
+
 /// Information required for loading config
 #[derive(Debug, Default, Clone)]
 pub struct Info {
@@ -44,28 +60,19 @@ pub struct Info {
 }
 
 impl Info {
-    /// Build Configuration Info
-    ///
-    /// # Examples
-    ///
-    /// ```no_run
-    /// # use torrust_index::config::Info;
-    /// # let (env_var_config, env_var_path_config, default_path_config, env_var_tracker_api_token, env_var_auth_secret_key) = ("".to_string(), "".to_string(), "".to_string(), "".to_string(), "".to_string());
-    /// let result = Info::new(env_var_config, env_var_path_config, default_path_config, env_var_tracker_api_token, env_var_auth_secret_key);
-    /// ```
+    /// Build configuration Info.
     ///
     /// # Errors
     ///
     /// Will return `Err` if unable to obtain a configuration.
     ///
     #[allow(clippy::needless_pass_by_value)]
-    pub fn new(
-        env_var_config_toml: String,
-        env_var_config_toml_path: String,
-        default_config_toml_path: String,
-        env_var_tracker_api_token: String,
-        env_var_auth_secret_key: String,
-    ) -> Result<Self, Error> {
+    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_tracker_api_admin_token = ENV_VAR_TRACKER_API_ADMIN_TOKEN.to_string();
+        let env_var_auth_secret_key = ENV_VAR_AUTH_SECRET_KEY.to_string();
+
         let config_toml = if let Ok(config_toml) = env::var(env_var_config_toml) {
             println!("Loading configuration from environment variable {config_toml} ...");
             Some(config_toml)
@@ -81,7 +88,7 @@ impl Info {
             default_config_toml_path
         };
 
-        let tracker_api_token = env::var(env_var_tracker_api_token).ok();
+        let tracker_api_token = env::var(env_var_tracker_api_admin_token).ok();
         let auth_secret_key = env::var(env_var_auth_secret_key).ok();
 
         Ok(Self {

src/lib.rs

@@ -215,18 +215,18 @@
 //!
 //! For more information about configuration you can visit the documentation for the [`config`]) module.
 //!
-//! Alternatively to the `config.toml` file you can use one environment variable `TORRUST_INDEX_CONFIG` to pass the configuration to the tracker:
+//! Alternatively to the `config.toml` file you can use one environment variable `TORRUST_INDEX_CONFIG_TOML` to pass the configuration to the tracker:
 //!
 //! ```text
-//! TORRUST_INDEX_CONFIG=$(cat config.toml)
+//! TORRUST_INDEX_CONFIG_TOML=$(cat config.toml)
 //! cargo run
 //! ```
 //!
 //! In the previous example you are just setting the env var with the contents of the `config.toml` file.
 //!
 //! The env var contains the same data as the `config.toml`. It's particularly useful in you are [running the index with docker](https://github.com/torrust/torrust-index/tree/develop/docker).
 //!
-//! > **NOTICE**: The `TORRUST_INDEX_CONFIG` env var has priority over the `config.toml` file.
+//! > **NOTICE**: The `TORRUST_INDEX_CONFIG_TOML` env var has priority over the `config.toml` file.
 //!
 //! > **NOTICE**: You can also change the location for the configuration file with the `TORRUST_INDEX_CONFIG_PATH` env var.
 //!