chore(riklet): use conventional logger methods

Signed-off-by: AlexandreBrg <[email protected]>

riklet/src/core.rs

@@ -15,7 +15,7 @@ use tracing_subscriber::field::debug;
 
 use thiserror::Error;
 use tonic::{transport::Channel, Request, Streaming};
-use tracing::{debug, error, event, Level};
+use tracing::{debug, error, event, info, Level};
 
 const METRICS_UPDATER_INTERVAL: u64 = 15 * 1000;
 
@@ -148,8 +148,8 @@ impl Riklet {
     }
 
     pub async fn run(&mut self) -> Result<()> {
-        event!(Level::INFO, "Riklet is running.");
         self.start_metrics_updater();
+        info!("Riklet is running");
 
         while let Some(workload) = self
             .stream

riklet/src/main.rs

@@ -17,10 +17,8 @@ use tracing::error;
 
 #[tokio::main]
 async fn main() -> Result<()> {
-    init_logger(Some("debug".to_string()))?;
+    init_logger()?;
 
-    // run a function to test #[instrument] macro
-    // test_instrument();
     // If the process doesn't have root privileges, exit and display error.
     if !nix::unistd::Uid::effective().is_root() {
         error!("Riklet must run with root privileges.");

riklet/src/utils.rs

@@ -1,5 +1,4 @@
 use anyhow::Result;
-use tracing_subscriber::{prelude::__tracing_subscriber_SubscriberExt, EnvFilter, Registry};
 
 pub fn banner() {
     println!(
@@ -14,19 +13,9 @@ pub fn banner() {
     );
 }
 
-pub fn init_logger(log_level: Option<String>) -> Result<()> {
-    let logger = tracing_subscriber::fmt::layer().json();
-    // Try to get the log level from the environment variable `RUST_LOG`.
-    // If the variable is not defined, then use the cli argument or the default value 'info' if neither is defined
-    let env_filter = EnvFilter::try_from_default_env()
-        .or_else(|_| {
-            let level = log_level.unwrap_or_else(|| "info".to_string());
-            EnvFilter::try_new(level.as_str())
-        })?
-        .add_directive("h2=OFF".parse().unwrap()); // disable all events from the `h2` crate;
-
-    let collector = Registry::default().with(logger).with(env_filter);
-    tracing::subscriber::set_global_default(collector)?;
-
+pub fn init_logger() -> Result<()> {
+    let subscriber = tracing_subscriber::fmt().compact().finish();
+    tracing::subscriber::set_global_default(subscriber)
+        .expect("Failed to initiate the logger subscriber");
     Ok(())
 }

scheduler/src/main.rs

@@ -5,14 +5,14 @@ mod state_manager;
 use crate::config_parser::ConfigParser;
 use crate::grpc::GRPCService;
 use crate::state_manager::{StateManager, StateManagerEvent};
-use env_logger::Env;
+
 use proto::common::worker_status::Status;
 use proto::common::{ResourceStatus, WorkerMetric as WorkerMetricProto, WorkerStatus};
 use proto::controller::controller_server::ControllerServer;
 use proto::worker::worker_server::WorkerServer;
 use scheduler::Event;
 use scheduler::{Controller, SchedulerError, Worker, WorkerRegisterChannelType};
-use std::default::Default;
+
 use std::net::{SocketAddr, SocketAddrV4};
 use std::sync::Arc;
 use tracing::{debug, error, info, warn};