register consul services against local agent instead of catalog api

src/rpc/system.rs

@@ -32,6 +32,8 @@ use garage_util::time::*;
 
 #[cfg(feature = "consul-discovery")]
 use crate::consul::ConsulDiscovery;
+#[cfg(feature = "consul-service-discovery")]
+use crate::consul_services::ConsulServiceDiscovery;
 #[cfg(feature = "kubernetes-discovery")]
 use crate::kubernetes::*;
 use crate::layout::*;
@@ -98,12 +100,14 @@ pub struct System {
 	system_endpoint: Arc<Endpoint<SystemRpc, System>>,
 
 	rpc_listen_addr: SocketAddr,
-	#[cfg(any(feature = "consul-discovery", feature = "kubernetes-discovery"))]
+	#[cfg(any(feature = "consul-discovery", feature = "consul-service-discovery", feature = "kubernetes-discovery"))]
 	rpc_public_addr: Option<SocketAddr>,
 	bootstrap_peers: Vec<String>,
 
 	#[cfg(feature = "consul-discovery")]
 	consul_discovery: Option<ConsulDiscovery>,
+	#[cfg(feature = "consul-service-discovery")]
+	consul_service_discovery: Option<ConsulServiceDiscovery>,
 	#[cfg(feature = "kubernetes-discovery")]
 	kubernetes_discovery: Option<KubernetesDiscoveryConfig>,
 
@@ -346,6 +350,19 @@ impl System {
 			warn!("Consul discovery is not enabled in this build.");
 		}
 
+		#[cfg(feature = "consul-service-discovery")]
+		let consul_service_discovery = match &config.consul_service_discovery {
+			Some(cfg) => Some(
+				ConsulServiceDiscovery::new(cfg.clone())
+					.ok_or_message("Invalid Consul service discovery configuration")?,
+			),
+			None => None,
+		};
+		#[cfg(not(feature = "consul-service-discovery"))]
+		if config.consul_service_discovery.is_some() {
+			warn!("Consul service discovery is not enabled in this build.");
+		}
+
 		#[cfg(not(feature = "kubernetes-discovery"))]
 		if config.kubernetes_discovery.is_some() {
 			warn!("Kubernetes discovery is not enabled in this build.");
@@ -369,11 +386,13 @@ impl System {
 			replication_mode,
 			replication_factor,
 			rpc_listen_addr: config.rpc_bind_addr,
-			#[cfg(any(feature = "consul-discovery", feature = "kubernetes-discovery"))]
+			#[cfg(any(feature = "consul-discovery", feature = "consul-service-discovery", feature = "kubernetes-discovery"))]
 			rpc_public_addr,
 			bootstrap_peers: config.bootstrap_peers.clone(),
 			#[cfg(feature = "consul-discovery")]
 			consul_discovery,
+			#[cfg(feature = "consul-service-discovery")]
+			consul_service_discovery,
 			#[cfg(feature = "kubernetes-discovery")]
 			kubernetes_discovery: config.kubernetes_discovery.clone(),
 			metrics,
@@ -555,6 +574,34 @@ impl System {
 		}
 	}
 
+	#[cfg(feature = "consul-service-discovery")]
+	async fn advertise_to_consul(self: Arc<Self>) {
+		let c = match &self.consul_service_discovery {
+			Some(c) => c,
+			_ => return,
+		};
+
+		let rpc_public_addr = match self.rpc_public_addr {
+			Some(addr) => addr,
+			None => {
+				warn!("Not advertising to Consul because rpc_public_addr is not defined in config file and could not be autodetected.");
+				return;
+			}
+		};
+
+		if let Err(e) = c
+			.publish_consul_service(
+				self.netapp.id,
+				&self.local_status.load_full().hostname,
+				rpc_public_addr,
+			)
+			.await
+		{
+			error!("Error while publishing Consul service: {}", e);
+		}
+	}
+
+
 	#[cfg(feature = "kubernetes-discovery")]
 	async fn advertise_to_kubernetes(self: Arc<Self>) {
 		let k = match &self.kubernetes_discovery {
@@ -744,7 +791,7 @@ impl System {
 					ping_list.extend(peers.0.iter().map(|(id, addr)| ((*id).into(), *addr)))
 				}
 
-				// Fetch peer list from Consul
+				// Fetch peer list from Consul Nodes
 				#[cfg(feature = "consul-discovery")]
 				if let Some(c) = &self.consul_discovery {
 					match c.get_consul_nodes().await {
@@ -757,6 +804,19 @@ impl System {
 					}
 				}
 
+				// Fetch peer list from Consul Services
+				#[cfg(feature = "consul-service-discovery")]
+				if let Some(c) = &self.consul_service_discovery {
+					match c.get_consul_services().await {
+						Ok(node_list) => {
+							ping_list.extend(node_list);
+						}
+						Err(e) => {
+							warn!("Could not retrieve service list from Consul: {}", e);
+						}
+					}
+				}
+
 				// Fetch peer list from Kubernetes
 				#[cfg(feature = "kubernetes-discovery")]
 				if let Some(k) = &self.kubernetes_discovery {
@@ -796,6 +856,9 @@ impl System {
 			#[cfg(feature = "consul-discovery")]
 			tokio::spawn(self.clone().advertise_to_consul());
 
+			#[cfg(feature = "consul-service-discovery")]
+			tokio::spawn(self.clone().advertise_to_consul());
+
 			#[cfg(feature = "kubernetes-discovery")]
 			tokio::spawn(self.clone().advertise_to_kubernetes());