Integrate tracing (#6339)

Tracing Integration
- [reference](5bbf1859e9/projects/project-ideas.md (L297))


  - [x] replace slog & log with tracing throughout the codebase
- [x] implement custom crit log
- [x] make relevant changes in the formatter
- [x] replace sloggers
- [x] re-write SSE logging components

cc: @macladson @eserilev

beacon_node/http_metrics/Cargo.toml

@@ -10,12 +10,13 @@ beacon_chain = { workspace = true }
 health_metrics = { workspace = true }
 lighthouse_network = { workspace = true }
 lighthouse_version = { workspace = true }
+logging = { workspace = true }
 malloc_utils = { workspace = true }
 metrics = { workspace = true }
 serde = { workspace = true }
-slog = { workspace = true }
 slot_clock = { workspace = true }
 store = { workspace = true }
+tracing = { workspace = true }
 warp = { workspace = true }
 warp_utils = { workspace = true }
 

beacon_node/http_metrics/src/lib.rs

@@ -6,12 +6,13 @@ mod metrics;
 use beacon_chain::{BeaconChain, BeaconChainTypes};
 use lighthouse_network::prometheus_client::registry::Registry;
 use lighthouse_version::version_with_platform;
+use logging::crit;
 use serde::{Deserialize, Serialize};
-use slog::{crit, info, Logger};
 use std::future::Future;
 use std::net::{IpAddr, Ipv4Addr, SocketAddr};
 use std::path::PathBuf;
 use std::sync::Arc;
+use tracing::info;
 use warp::{http::Response, Filter};
 
 #[derive(Debug)]
@@ -41,7 +42,6 @@ pub struct Context<T: BeaconChainTypes> {
     pub db_path: Option<PathBuf>,
     pub freezer_db_path: Option<PathBuf>,
     pub gossipsub_registry: Option<std::sync::Mutex<Registry>>,
-    pub log: Logger,
 }
 
 /// Configuration for the HTTP server.
@@ -86,7 +86,6 @@ pub fn serve<T: BeaconChainTypes>(
     shutdown: impl Future<Output = ()> + Send + Sync + 'static,
 ) -> Result<(SocketAddr, impl Future<Output = ()>), Error> {
     let config = &ctx.config;
-    let log = ctx.log.clone();
 
     // Configure CORS.
     let cors_builder = {
@@ -103,7 +102,7 @@ pub fn serve<T: BeaconChainTypes>(
 
     // Sanity check.
     if !config.enabled {
-        crit!(log, "Cannot start disabled metrics HTTP server");
+        crit!("Cannot start disabled metrics HTTP server");
         return Err(Error::Other(
             "A disabled metrics server should not be started".to_string(),
         ));
@@ -144,9 +143,8 @@ pub fn serve<T: BeaconChainTypes>(
     )?;
 
     info!(
-        log,
-        "Metrics HTTP server started";
-        "listen_address" => listening_socket.to_string(),
+        listen_address = listening_socket.to_string(),
+        "Metrics HTTP server started"
     );
 
     Ok((listening_socket, server))

beacon_node/http_metrics/tests/tests.rs

@@ -1,6 +1,6 @@
 use beacon_chain::test_utils::EphemeralHarnessType;
 use http_metrics::Config;
-use logging::test_logger;
+use logging::create_test_tracing_subscriber;
 use reqwest::header::HeaderValue;
 use reqwest::StatusCode;
 use std::net::{IpAddr, Ipv4Addr};
@@ -12,9 +12,8 @@ type Context = http_metrics::Context<EphemeralHarnessType<MainnetEthSpec>>;
 
 #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
 async fn returns_200_ok() {
+    create_test_tracing_subscriber();
     async {
-        let log = test_logger();
-
         let context = Arc::new(Context {
             config: Config {
                 enabled: true,
@@ -27,7 +26,6 @@ async fn returns_200_ok() {
             db_path: None,
             freezer_db_path: None,
             gossipsub_registry: None,
-            log,
         });
 
         let ctx = context.clone();