- add: gRPC health check for gRPC services

session-service/Cargo.toml

@@ -15,6 +15,7 @@ prost = "0.13.4"
 warp = "0.3.7"
 chrono = "0.4.39"
 serde_json = "1.0.133"
+tonic-health = "0.12.3"
 
 [build-dependencies]
-tonic-build = "0.12.3"
+tonic-build = "0.12.3"

session-service/src/main.rs

@@ -34,7 +34,6 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     // Set the gRPC server address
     let addr = env::var("LISTEN_ADDR").unwrap_or_else(|_| "0.0.0.0".to_string());
     let port = env::var("SESSION_SERVICE_PORT").unwrap_or_else(|_| "50055".to_string());
-    let health_port = env::var("HEALTH_CHECK_PORT").unwrap_or_else(|_| "8084".to_string());
 
     let redis_url =
         std::env::var("REDIS_URL").unwrap_or_else(|_| "redis://127.0.0.1:6379".to_string());
@@ -43,12 +42,11 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     let service_address =
         env::var("SESSION_SERVICE_ADDR").unwrap_or_else(|_| "127.0.0.1".to_string());
     let service_port = port.clone();
-    let health_check_url = format!("http://{}:{}/health", service_address, health_port);
 
     // Register service with Consul
     let service_id = consul_registration::get_or_generate_service_id(env!("CARGO_PKG_NAME"));
     let version = env!("CARGO_PKG_VERSION").to_string();
-    let tags = vec![version];
+    let tags = vec![version, "grpc".to_string()];
     let meta = HashMap::new();
     consul_registration::register_service(
         &consul_url,
@@ -58,20 +56,22 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
         service_port.parse().unwrap_or(50055),
         tags,
         meta,
-        &health_check_url,
+        None,
+        None,
     )
-    .await?;
-
-    // Start health-check endpoint
-    consul_registration::start_health_check(addr.as_str()).await?;
+        .await?;
 
     let full_addr = format!("{}:{}", &addr, port);
     let address = full_addr.parse().expect("Invalid address");
     let redis_cache = Arc::new(Mutex::new(RedisCache::new(&redis_url)));
     let session_service = SessionServiceImpl { redis: redis_cache };
 
+    let (mut health_reporter, health_service) = tonic_health::server::health_reporter();
+    health_reporter.set_serving::<SessionServiceServer<SessionServiceImpl>>().await;
+
     tokio::spawn(
         Server::builder()
+            .add_service(health_service)
             .add_service(SessionServiceServer::new(session_service))
             .serve(address),
     );