feat(zetaclient): enable pprof http server (#3182)

* feat(zetaclient): enable pprof http server

* changelog

* fmt

changelog.md

@@ -8,6 +8,7 @@
 * [3091](https://github.com/zeta-chain/node/pull/3091) - improve build reproducability. `make release{,-build-only}` checksums should now be stable.
 * [3124](https://github.com/zeta-chain/node/pull/3124) - integrate SPL deposits
 * [3134](https://github.com/zeta-chain/node/pull/3134) - integrate SPL tokens withdraw to Solana
+* [3182](https://github.com/zeta-chain/node/pull/3182) - enable zetaclient pprof server on port 6061
 
 ### Tests
 

cmd/zetaclientd/start.go

@@ -5,6 +5,8 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"net/http"
+	_ "net/http/pprof" // #nosec G108 -- pprof enablement is intentional
 	"os"
 	"os/signal"
 	"path/filepath"
@@ -256,6 +258,15 @@ func Start(_ *cobra.Command, _ []string) error {
 			time.Sleep(30 * time.Second)
 		}
 	}()
+	// pprof http server
+	// zetacored/cometbft is already listening for pprof on 6060 (by default)
+	go func() {
+		// #nosec G114 -- timeouts uneeded
+		err := http.ListenAndServe("localhost:6061", nil)
+		if err != nil {
+			log.Error().Err(err).Msg("pprof http server error")
+		}
+	}()
 
 	// Generate a new TSS if keygen is set and add it into the tss server
 	// If TSS has already been generated, and keygen was successful ; we use the existing TSS