apollo_network_benchmark: setup trace logging in benchmark

crates/apollo_network_benchmark/Cargo.toml

@@ -9,9 +9,11 @@ license-file.workspace = true
 testing = []
 
 [dependencies]
-clap = { workspace = true, features = ["derive"] }
+clap = { workspace = true, features = ["derive", "env"] }
 lazy_static.workspace = true
 tokio = { workspace = true, features = ["full", "sync"] }
+tracing.workspace = true
+tracing-subscriber.workspace = true
 
 
 [dev-dependencies]

crates/apollo_network_benchmark/src/bin/broadcast_network_stress_test_node/main.rs

@@ -1,6 +1,7 @@
 //! Runs a node that stress tests the p2p communication of the network.
 
 use clap::Parser;
+use tracing::Level;
 
 #[cfg(test)]
 mod message_test;
@@ -11,6 +12,22 @@ use apollo_network_benchmark::node_args::NodeArgs;
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
-    let _args = NodeArgs::parse();
+    let args = NodeArgs::parse();
+
+    let level = match args.user.verbosity {
+        0 => None,
+        1 => Some(Level::ERROR),
+        2 => Some(Level::WARN),
+        3 => Some(Level::INFO),
+        4 => Some(Level::DEBUG),
+        _ => Some(Level::TRACE),
+    };
+    tracing::subscriber::set_global_default(
+        tracing_subscriber::FmtSubscriber::builder().with_max_level(level).finish(),
+    )
+    .expect("Failed to set global default subscriber");
+
+    println!("Starting network stress test with args:\n{args:?}");
+
     Ok(())
 }

crates/apollo_network_benchmark/src/node_args.rs

@@ -2,4 +2,23 @@ use clap::Parser;
 
 #[derive(Parser, Debug, Clone)]
 #[command(version, about, long_about = None)]
-pub struct NodeArgs {}
+/// Arguments from the runner, not meant to be set by the user.
+pub struct RunnerArgs {}
+
+#[derive(Parser, Debug, Clone)]
+#[command(version, about, long_about = None)]
+/// Arguments from the user.
+pub struct UserArgs {
+    /// Set the verbosity level of the logger, the higher the more verbose
+    #[arg(short, long, env, default_value = "2")]
+    pub verbosity: u8,
+}
+
+#[derive(Parser, Debug, Clone)]
+#[command(version, about, long_about = None)]
+pub struct NodeArgs {
+    #[command(flatten)]
+    pub runner: RunnerArgs,
+    #[command(flatten)]
+    pub user: UserArgs,
+}