internal/proxy: add initial set of abci metrics

node/node.go

@@ -146,8 +146,10 @@ func makeNode(cfg *config.Config,
 		return nil, err
 	}
 
+	nodeMetrics := defaultMetricsProvider(cfg.Instrumentation)(genDoc.ChainID)
+
 	// Create the proxyApp and establish connections to the ABCI app (consensus, mempool, query).
-	proxyApp, err := createAndStartProxyAppConns(clientCreator, logger)
+	proxyApp, err := createAndStartProxyAppConns(clientCreator, logger, nodeMetrics.proxy)
 	if err != nil {
 		return nil, err
 	}
@@ -240,9 +242,6 @@ func makeNode(cfg *config.Config,
 		return nil, fmt.Errorf("failed to create peer manager: %w", err)
 	}
 
-	nodeMetrics :=
-		defaultMetricsProvider(cfg.Instrumentation)(genDoc.ChainID)
-
 	router, err := createRouter(p2pLogger, nodeMetrics.p2p, nodeInfo, nodeKey.PrivKey,
 		peerManager, transport, getRouterConfig(cfg, proxyApp))
 	if err != nil {
@@ -928,6 +927,7 @@ type nodeMetrics struct {
 	mempool   *mempool.Metrics
 	state     *sm.Metrics
 	statesync *statesync.Metrics
+	proxy     *proxy.Metrics
 }
 
 // metricsProvider returns consensus, p2p, mempool, state, statesync Metrics.
@@ -944,6 +944,7 @@ func defaultMetricsProvider(cfg *config.InstrumentationConfig) metricsProvider {
 				mempool.PrometheusMetrics(cfg.Namespace, "chain_id", chainID),
 				sm.PrometheusMetrics(cfg.Namespace, "chain_id", chainID),
 				statesync.PrometheusMetrics(cfg.Namespace, "chain_id", chainID),
+				proxy.PrometheusMetrics(cfg.Namespace, "chain_id", chainID),
 			}
 		}
 		return &nodeMetrics{
@@ -952,6 +953,7 @@ func defaultMetricsProvider(cfg *config.InstrumentationConfig) metricsProvider {
 			mempool.NopMetrics(),
 			sm.NopMetrics(),
 			statesync.NopMetrics(),
+			proxy.NopMetrics(),
 		}
 	}
 }