feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

docker/proxy/go.mod

@@ -0,0 +1,3 @@
+module github.com/coze-dev/coze-studio/docker/proxy
+
+go 1.24.1

docker/proxy/proxy.go

@@ -0,0 +1,100 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"os"
+	"strings"
+)
+
+func main() {
+	proxyURLListString := os.Getenv("COZE_SERVER_PROXY_URL_LIST")
+	if proxyURLListString == "" {
+		proxyURLListString = "mysql:3306,redis:6379,elasticsearch:9200,milvus:19530,minio:9000,nsqd:4150"
+	}
+
+	proxyURLList := strings.Split(proxyURLListString, ",")
+	for _, serverAddInDockerNet := range proxyURLList {
+		err := listen(serverAddInDockerNet)
+		if err != nil {
+			fmt.Printf("listen %s failed: %v\n", serverAddInDockerNet, err)
+		}
+	}
+
+	// 阻塞主程序，防止退出
+	select {}
+}
+
+func listen(serverAddInDockerNet string) error {
+	tcpAddr, err := net.ResolveTCPAddr("tcp", serverAddInDockerNet)
+	if err != nil {
+		fmt.Printf("解析失败: %v\n", err)
+		return err
+	}
+
+	fmt.Printf("host %s : %s:%d\n", serverAddInDockerNet, tcpAddr.IP, tcpAddr.Port)
+	localAddr := fmt.Sprintf(":%d", tcpAddr.Port)
+	addr := fmt.Sprintf("%s:%d", tcpAddr.IP, tcpAddr.Port)
+
+	go startListener(localAddr, addr)
+
+	return nil
+}
+
+func startListener(localAddr, targetAddr string) {
+	// 监听本地端口
+	listener, err := net.Listen("tcp", localAddr)
+	if err != nil {
+		log.Printf("无法监听端口 %s: %v", localAddr, err)
+		return
+	}
+	defer listener.Close()
+
+	log.Printf("TCP 服务器已启动，监听端口 %s\n", localAddr)
+
+	for {
+		// 接受客户端连接
+		clientConn, err := listener.Accept()
+		if err != nil {
+			log.Printf("接受连接失败: %v", err)
+			continue
+		}
+
+		// 处理客户端连接
+		go handleConnection(clientConn, targetAddr)
+	}
+}
+
+func handleConnection(clientConn net.Conn, targetAddr string) {
+	defer clientConn.Close()
+
+	// 连接到目标服务器
+	targetConn, err := net.Dial("tcp", targetAddr)
+	if err != nil {
+		log.Printf("无法连接到目标服务器 %s: %v", targetAddr, err)
+		return
+	}
+	defer targetConn.Close()
+
+	// 启动两个协程进行双向数据转发
+	go io.Copy(targetConn, clientConn)
+	io.Copy(clientConn, targetConn)
+}