Exchange transactions relay dashboard (paritytech#241)

* update dashboards

* cargo fmt --all

* Update deployments/rialto/dashboard/prometheus/prometheus.yml

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

bridges/relays/ethereum/src/exchange_loop.rs

@@ -98,7 +98,12 @@ pub fn run<P: TransactionProofPipeline>(
 		let mut metrics_global = GlobalMetrics::new();
 		let mut metrics_exch = ExchangeLoopMetrics::new();
 		let metrics_enabled = metrics_params.is_some();
-		metrics_start(metrics_params, &metrics_global, &metrics_exch);
+		metrics_start(
+			format!("{}_to_{}_Exchange", P::SOURCE_NAME, P::TARGET_NAME),
+			metrics_params,
+			&metrics_global,
+			&metrics_exch,
+		);
 
 		let exit_signal = exit_signal.fuse();
 

bridges/relays/ethereum/src/metrics.rs

@@ -45,12 +45,19 @@ pub struct GlobalMetrics {
 }
 
 /// Start Prometheus endpoint with given metrics registry.
-pub fn start(params: Option<MetricsParams>, global_metrics: &GlobalMetrics, extra_metrics: &impl Metrics) {
+pub fn start(
+	prefix: String,
+	params: Option<MetricsParams>,
+	global_metrics: &GlobalMetrics,
+	extra_metrics: &impl Metrics,
+) {
 	let params = match params {
 		Some(params) => params,
 		None => return,
 	};
 
+	assert!(!prefix.is_empty(), "Metrics prefix can not be empty");
+
 	let do_start = move || {
 		let prometheus_socket_addr = SocketAddr::new(
 			params
@@ -59,7 +66,8 @@ pub fn start(params: Option<MetricsParams>, global_metrics: &GlobalMetrics, extr
 				.map_err(|err| format!("Invalid Prometheus host {}: {}", params.host, err))?,
 			params.port,
 		);
-		let metrics_registry = Registry::new();
+		let metrics_registry =
+			Registry::new_custom(Some(prefix), None).expect("only fails if prefix is empty; prefix is not empty; qed");
 		global_metrics.register(&metrics_registry)?;
 		extra_metrics.register(&metrics_registry)?;
 		async_std::task::spawn(async move {

bridges/relays/ethereum/src/sync_loop.rs

@@ -124,7 +124,12 @@ pub fn run<P: HeadersSyncPipeline, TC: TargetClient<P>>(
 		let mut metrics_global = GlobalMetrics::new();
 		let mut metrics_sync = SyncLoopMetrics::new();
 		let metrics_enabled = metrics_params.is_some();
-		metrics_start(metrics_params, &metrics_global, &metrics_sync);
+		metrics_start(
+			format!("{}_to_{}_Sync", P::SOURCE_NAME, P::TARGET_NAME),
+			metrics_params,
+			&metrics_global,
+			&metrics_sync,
+		);
 
 		let mut source_retry_backoff = retry_backoff();
 		let mut source_client_is_online = false;