feat(docker): add docker feature to disable modifying location to con…

…fig.toml

If the application is run using the container, the config.toml config
file location is set to /etc/stream-rust-test/, otherwise it can be
modified by using the ASTARTE_CONFIG_PATH env variable

Signed-off-by: Riccardo Gallo <[email protected]>

Cargo.toml

@@ -29,3 +29,6 @@ toml = "0.8.12"
 tracing = "0.1.37"
 tracing-subscriber = { version = "0.3.0", features = ["env-filter"]}
 uuid = { version = "1.10.0", features = ["v4", "serde"] }
+
+[features]
+docker = []

README.md

@@ -136,13 +136,11 @@ To run the container with your configuration file:
 1. Ensure you have defined your astarte configuration file `config.toml`
 2. Run the Docker container, mounting the configuration file:
    ```sh
-   docker run -v /path/to/your/config.toml:<MOUNT_TO_THIS_PATH> -e ASTARTE_CONFIG_PATH="<MOUNT_TO_THIS_PATH>" stream-rust-test:latest
+   docker run -v /path/to/your/config.toml:/etc/stream-rust-test/ stream-rust-test:latest
    ```
 
 Replace `/path/to/your/config.toml` with the actual path to your configuration file.
 
-Note: `MOUNT_TO_THIS_PATH` must be an absolute path.
-
 #### Run the container with environment variables
 
 You can configure the application with environment variables by exporting them (e.g. configuring

astarte-device-conf/config.toml

@@ -16,7 +16,7 @@ device_id = "DEVICE_ID_HERE"
 pairing_url = "PAIRING_URL_HERE"
 credentials_secret = "CREDENTIALS_SECRET_HERE"
 #pairing_token = "PAIRING_TOKEN_HERE"
-astarte_ignore_ssl = false
+ignore_ssl_errors = false
 
 # ####################################################
 # Use the following to connect through gRPC to Astarte

scripts/docker/Dockerfile

@@ -11,7 +11,7 @@ COPY . /stream-rust-test
 
 WORKDIR /stream-rust-test
 
-RUN cargo build --release
+RUN cargo build --features "docker" --release
 
 FROM alpine:3.20
 
@@ -20,5 +20,6 @@ COPY scripts/docker/entrypoint.sh /entrypoint.sh
 COPY --from=build /stream-rust-test/target/release/stream-rust-test /usr/bin/
 
 RUN mkdir -p /tmp/stream-rust-test/store/
+RUN mkdir /etc/stream-rust-test/
 
 CMD ["/entrypoint.sh"]

src/cli.rs

@@ -8,18 +8,18 @@
 
 use crate::math::MathFunction;
 use clap::Parser;
-use std::path::PathBuf;
 
 /// Configuration for the values to be sent to Astarte
 #[derive(Debug, Clone, Parser)]
 #[clap(version, about)]
 pub struct Config {
+    #[cfg(not(feature = "docker"))]
     /// Path to the directory containing the Astarte configuration file config.toml
     ///
     /// First, the Astarte configuration is taken from ENV vars, then from the config.toml if the
     /// path has been specified
     #[clap(short, long, env = "ASTARTE_CONFIG_PATH")]
-    pub astarte_config_path: Option<PathBuf>,
+    pub astarte_config_path: Option<std::path::PathBuf>,
     /// Math function the device will use to send data to Astarte
     #[clap(short, long, default_value = "default", env = "MATH_FUNCTION")]
     pub math_function: MathFunction,

src/main.rs

@@ -52,6 +52,13 @@ async fn main() -> eyre::Result<()> {
     if let Err(err) = astarte_cfg_builder.try_from_env() {
         warn!("failed to retrieve Astarte connection config from ENV: {err}");
 
+        #[cfg(feature = "docker")]
+        {
+            let path = std::path::PathBuf::from("/etc/stream-rust-test/config.toml");
+            astarte_cfg_builder.from_toml(path).await;
+        }
+
+        #[cfg(not(feature = "docker"))]
         if let Some(path) = &cli_cfg.astarte_config_path {
             let path = path.join("config.toml");
             info!("retrieve Astarte connection config from {}", path.display());