feat: configurable TCPKeepAlive interval

common/net/tcpip.go

@@ -4,8 +4,11 @@ import (
 	"fmt"
 	"net"
 	"strings"
+	"time"
 )
 
+var KeepAliveInterval time.Duration
+
 func SplitNetworkType(s string) (string, string, error) {
 	var (
 		shecme   string
@@ -44,3 +47,10 @@ func SplitHostPort(s string) (host, port string, hasPort bool, err error) {
 	host, port, err = net.SplitHostPort(temp)
 	return
 }
+
+func TCPKeepAlive(c net.Conn) {
+	if tcp, ok := c.(*net.TCPConn); ok {
+		_ = tcp.SetKeepAlive(true)
+		_ = tcp.SetKeepAlivePeriod(KeepAliveInterval * time.Second)
+	}
+}