[management,signal,proxy] add pyroscope profiling (#7536)

proxy/cmd/proxy/cmd/root.go

@@ -14,6 +14,7 @@ import (
 	"golang.org/x/crypto/acme"
 
 	"github.com/netbirdio/netbird/shared/management/domain"
+	"github.com/netbirdio/netbird/shared/profiling"
 
 	"github.com/netbirdio/netbird/client/embed"
 	"github.com/netbirdio/netbird/proxy"
@@ -30,6 +31,8 @@ const (
 	// how many buffers each receive/TUN worker eagerly allocates. Zero
 	// (unset) keeps the platform default.
 	envMaxBatchSize = "NB_PROXY_MAX_BATCH_SIZE"
+
+	applicationName = "proxy"
 )
 
 const DefaultManagementURL = "https://api.netbird.io:443"
@@ -160,6 +163,9 @@ func runServer(cmd *cobra.Command, args []string) error {
 
 	logger.Infof("configured log level: %s", level)
 
+	stopProfiling := profiling.Start(applicationName)
+	defer stopProfiling()
+
 	var wgPool, wgBatch uint64
 	var perf embed.Performance
 	if raw := os.Getenv(envPreallocatedBuffers); raw != "" {

proxy/cmd/proxy/main.go

@@ -4,6 +4,7 @@ import (
 	"net/http"
 	// nolint:gosec
 	_ "net/http/pprof"
+	"os"
 	"runtime"
 
 	log "github.com/sirupsen/logrus"
@@ -26,9 +27,13 @@ var (
 )
 
 func main() {
-	go func() {
-		log.Println(http.ListenAndServe("localhost:6060", nil))
-	}()
+	if pprofAddr := os.Getenv("NB_PPROF_ADDR"); pprofAddr != "" {
+		log.Infof("pprof enabled, listening on: %s", pprofAddr)
+		go func() {
+			log.Println(http.ListenAndServe(pprofAddr, nil))
+		}()
+	}
+
 	cmd.SetVersionInfo(Version, Commit, BuildDate, GoVersion)
 	cmd.Execute()
 }