feat: add tracing setup for worker and controller binaries (#31)

Cargo.toml

@@ -1,5 +1,5 @@
 [workspace]
-members = ["ctl", "proto", "worker"]
+members = ["crates/*", "ctl", "proto", "worker"]
 resolver = "2"
 
 [workspace.package]
@@ -10,6 +10,7 @@ edition = "2021"
 # Internal deps
 ctl.path = "ctl"
 proto.path = "proto"
+setup.path = "crates/setup"
 worker.path = "worker"
 # External deps (keep alphabetically sorted)
 axum = "0.7"
@@ -31,6 +32,8 @@ tokio = { version = "1.36", features = [
     "time",
     "sync",
 ] }
+tracing = "0.1"
+tracing-subscriber = "0.3"
 uuid = { version = "1", features = ["serde", "v4"] }
 
 [workspace.lints.clippy]

crates/setup/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "setup"
+version.workspace = true
+edition.workspace = true
+
+[dependencies]
+tracing-subscriber.workspace = true
+
+[lints]
+workspace = true

crates/setup/src/lib.rs

@@ -0,0 +1,4 @@
+/// Sets up tracing.
+pub fn tracing() {
+    tracing_subscriber::fmt::init();
+}

ctl/Cargo.toml

@@ -7,3 +7,6 @@ edition.workspace = true
 workspace = true
 
 [dependencies]
+setup.workspace = true
+
+tracing.workspace = true

ctl/src/main.rs

@@ -1,3 +1,7 @@
+use tracing::info;
+
 fn main() {
-    println!("Hello, world!");
+    setup::tracing();
+
+    info!("started controller");
 }

worker/Cargo.toml

@@ -7,8 +7,11 @@ edition.workspace = true
 workspace = true
 
 [dependencies]
+setup.workspace = true
+proto.workspace = true
+
 clap.workspace = true
 eyre.workspace = true
-proto.workspace = true
 sysinfo.workspace = true
 tokio.workspace = true
+tracing.workspace = true

worker/src/args.rs

@@ -2,6 +2,7 @@ use std::{net::SocketAddr, time::Duration};
 
 use clap::{value_parser, Parser};
 
+#[derive(Debug)]
 pub struct WorkerArgs {
     /// Controller's address.
     pub controller_addr: SocketAddr,

worker/src/main.rs

@@ -1,5 +1,6 @@
 use eyre::Result;
 use tokio::time::sleep;
+use tracing::info;
 
 use crate::{args::WorkerArgs, monitor::collector::MetricsCollector};
 
@@ -8,7 +9,10 @@ mod monitor;
 
 #[tokio::main]
 async fn main() -> Result<()> {
+    setup::tracing();
+
     let args = WorkerArgs::parse();
+    info!(?args, "started worker");
 
     let mut metrics_report: MetricsCollector = MetricsCollector::new();