validation: listen for sigkill

validation/Cargo.lock

@@ -1925,6 +1925,15 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a9e9e0b4211b72e7b8b6e85c807d36c212bdb33ea8587f7569562a84df5465b1"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "signatory"
 version = "0.27.1"
@@ -2149,6 +2158,7 @@ dependencies = [
  "libc",
  "mio",
  "pin-project-lite",
+ "signal-hook-registry",
  "socket2",
  "tokio-macros",
  "windows-sys 0.52.0",

validation/Cargo.toml

@@ -16,5 +16,5 @@ rust-grpc = { version = "1.0.3", registry = "strafesnet" }
 serde = { version = "1.0.215", features = ["derive"] }
 serde_json = "1.0.133"
 siphasher = "1.0.1"
-tokio = { version = "1.41.1", features = ["macros", "rt-multi-thread", "fs"] }
+tokio = { version = "1.41.1", features = ["macros", "rt-multi-thread", "fs", "signal"] }
 tonic = "0.12.3"

validation/src/main.rs

@@ -42,6 +42,9 @@ async fn main()->Result<(),StartupError>{
 	let data_host=std::env::var("DATA_HOST").expect("DATA_HOST env required");
 	let maps_grpc=crate::types::MapsServiceClient::connect(data_host).await.map_err(StartupError::GRPCConnect)?;
 
+	// Create a signal listener for SIGTERM
+	let mut sig_term = tokio::signal::unix::signal(tokio::signal::unix::SignalKind::terminate()).expect("Failed to create SIGTERM signal listener");
+
 	// connect to nats
 	let (publish_new,publish_fix,validator)=tokio::try_join!(
 		publish_new::Publisher::new(stream.clone(),cookie_context.clone(),api.clone(),maps_grpc),
@@ -51,12 +54,12 @@ async fn main()->Result<(),StartupError>{
 		validator::Validator::new(stream.clone(),cookie_context,api)
 	).map_err(StartupError::NatsStartup)?;
 
-	// publisher threads
+	// nats consumer threads
 	tokio::spawn(publish_new.run());
 	tokio::spawn(publish_fix.run());
+	tokio::spawn(validator.run());
 
-	// run validator on the main thread indefinitely
+	sig_term.recv().await;
-	validator.run().await;
 
 	Ok(())
 }