fixed a few stuff

.github/workflows/docker-image-agent.yml

@@ -9,4 +9,4 @@ jobs:
     uses: ./.github/workflows/docker-image.yml
     with:
       make_args: "agent=1"
-      image_name: ${{ github.repository }}-agent
+      image_name: ${{ github.repository_owner }}/godoxy-agent

.github/workflows/docker-image-main-old.yml

@@ -0,0 +1,9 @@
+name: Docker Image CI (main)
+
+on:
+  push:
+    tags: ["*"]
+
+jobs:
+  call-main-workflow:
+    uses: ./.github/workflows/docker-image.yml

.github/workflows/docker-image-main.yml

@@ -7,3 +7,5 @@ on:
 jobs:
   call-main-workflow:
     uses: ./.github/workflows/docker-image.yml
+    with:
+      image_name: ${{ github.repository_owner }}/godoxy

agent/cmd/main.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"net"
 	"os"
+	"strings"
 
 	"github.com/rs/zerolog"
 	"github.com/yusing/go-proxy/agent/pkg/certs"
@@ -44,16 +45,24 @@ func printNewClientHelp(ca *tls.Certificate) {
 		E.LogFatal("marshal certs error", err)
 	}
 
-	fmt.Printf("Add this host (%s) to main server config like below:\n", host)
+	fmt.Printf("On main server, run:\nnew-agent '%s' '%s'\n", host, base64.StdEncoding.EncodeToString(certsData))
+	fmt.Printf("Then add this host (%s) to main server config like below:\n", host)
 	fmt.Println(string(cfgYAML))
-	fmt.Printf("On main server, run:\ngodoxy new-agent '%s' '%s'\n", host, base64.StdEncoding.EncodeToString(certsData))
 }
 
 func machineIP() string {
-	addrs, err := net.InterfaceAddrs()
+	interfaces, err := net.Interfaces()
 	if err != nil {
 		return "<machine-ip>"
 	}
+	for _, in := range interfaces {
+		addrs, err := in.Addrs()
+		if err != nil {
+			continue
+		}
+		if !strings.HasPrefix(in.Name, "eth") && !strings.HasPrefix(in.Name, "en") {
+			continue
+		}
 		for _, addr := range addrs {
 			if ipnet, ok := addr.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
 				if ipnet.IP.To4() != nil {
@@ -61,6 +70,7 @@ func machineIP() string {
 				}
 			}
 		}
+	}
 	return "<machine-ip>"
 }
 
@@ -79,6 +89,14 @@ func main() {
 
 	logging.Info().Msgf("GoDoxy Agent version %s", pkg.GetVersion())
 	logging.Info().Msgf("Agent name: %s", env.AgentName)
+	logging.Info().Msgf("Agent port: %d", env.AgentPort)
+
+	logging.Info().Msg("\nTips:")
+	logging.Info().Msg("1. To change the agent name, you can set the AGENT_NAME environment variable.")
+	logging.Info().Msg("2. To change the agent port, you can set the AGENT_PORT environment variable.")
+	logging.Info().Msg("3. To skip the version check, you can set the AGENT_SKIP_VERSION_CHECK environment variable.")
+	logging.Info().Msgf("4. Create shell alias on main server: `alias new-agent='docker run --rm -v ./certs:/app/certs ghcr.io/yusing/godoxy /app/run new-agent'`")
+	logging.Info().Msgf("5. Create shell alias on agent server: `alias new-client='docker compose exec agent /app/run new-client'`\n")
 
 	if isNew {
 		logging.Info().Msg("Initialization complete.")

agent/pkg/agent/config.go

@@ -13,6 +13,7 @@ import (
 
 	"github.com/rs/zerolog"
 	"github.com/yusing/go-proxy/agent/pkg/certs"
+	"github.com/yusing/go-proxy/agent/pkg/env"
 	E "github.com/yusing/go-proxy/internal/error"
 	"github.com/yusing/go-proxy/internal/logging"
 	gphttp "github.com/yusing/go-proxy/internal/net/http"
@@ -131,6 +132,7 @@ func (cfg *AgentConfig) load() E.Error {
 	defer cancel()
 
 	// check agent version
+	if !env.AgentSkipVersionCheck {
 		version, _, err := cfg.Fetch(ctx, EndpointVersion)
 		if err != nil {
 			return E.Wrap(err)
@@ -139,6 +141,7 @@ func (cfg *AgentConfig) load() E.Error {
 		if string(version) != pkg.GetVersion() {
 			return E.Errorf("agent version mismatch: server: %s, agent: %s", pkg.GetVersion(), string(version))
 		}
+	}
 
 	// get agent name
 	name, _, err := cfg.Fetch(ctx, EndpointName)

agent/pkg/certs/zip_test.go

@@ -0,0 +1,19 @@
+package certs
+
+import (
+	"testing"
+
+	. "github.com/yusing/go-proxy/internal/utils/testing"
+)
+
+func TestZipCert(t *testing.T) {
+	ca, crt, key := []byte("test1"), []byte("test2"), []byte("test3")
+	zipData, err := ZipCert(ca, crt, key)
+	ExpectNoError(t, err)
+
+	ca2, crt2, key2, err := ExtractCert(zipData)
+	ExpectNoError(t, err)
+	ExpectBytesEqual(t, ca, ca2)
+	ExpectBytesEqual(t, crt, crt2)
+	ExpectBytesEqual(t, key, key2)
+}

agent/pkg/env/env.go

@@ -17,4 +17,5 @@ func DefaultAgentName() string {
 var (
 	AgentName             = common.GetEnvString("AGENT_NAME", DefaultAgentName())
 	AgentPort             = common.GetEnvInt("AGENT_PORT", 8890)
+	AgentSkipVersionCheck = common.GetEnvBool("AGENT_SKIP_VERSION_CHECK", false)
 )

agent/pkg/handler/docker_socket.go

@@ -7,6 +7,7 @@ import (
 	"net/http"
 	"strings"
 
+	"github.com/yusing/go-proxy/internal/api/v1/utils"
 	"github.com/yusing/go-proxy/internal/common"
 	"github.com/yusing/go-proxy/internal/docker"
 	"github.com/yusing/go-proxy/internal/logging"
@@ -23,7 +24,7 @@ func DockerSocketHandler() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		conn, err := dockerDialerCallback(r.Context())
 		if err != nil {
-			http.Error(w, err.Error(), http.StatusInternalServerError)
+			utils.HandleErr(w, r, err)
 			return
 		}
 		defer conn.Close()
@@ -45,13 +46,13 @@ func DockerSocketHandler() http.HandlerFunc {
 		}()
 
 		if err := r.Write(conn); err != nil {
-			http.Error(w, err.Error(), http.StatusInternalServerError)
+			utils.HandleErr(w, r, err)
 			return
 		}
 
 		resp, err := http.ReadResponse(bufio.NewReader(conn), r)
 		if err != nil {
-			http.Error(w, err.Error(), http.StatusInternalServerError)
+			utils.HandleErr(w, r, err)
 			return
 		}
 		defer resp.Body.Close()

agent/pkg/handler/system_info.go

@@ -10,7 +10,7 @@ import (
 func SystemInfo(w http.ResponseWriter, r *http.Request) {
 	info, err := metrics.GetSystemInfo(r.Context())
 	if err != nil {
-		http.Error(w, err.Error(), http.StatusInternalServerError)
+		utils.HandleErr(w, r, err)
 		return
 	}
 	utils.RespondJSON(w, r, info)

agent/pkg/server/server.go

@@ -1,6 +1,7 @@
 package server
 
 import (
+	"context"
 	"crypto/tls"
 	"crypto/x509"
 	"encoding/pem"
@@ -8,6 +9,7 @@ import (
 	"log"
 	"net"
 	"net/http"
+	"time"
 
 	"github.com/yusing/go-proxy/agent/pkg/handler"
 	"github.com/yusing/go-proxy/internal/common"
@@ -21,6 +23,8 @@ type Options struct {
 }
 
 func StartAgentServer(parent task.Parent, opt Options) {
+	t := parent.Subtask("agent server")
+
 	caCertPEM := pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: opt.CACert.Certificate[0]})
 	caCertPool := x509.NewCertPool()
 	caCertPool.AppendCertsFromPEM(caCertPEM)
@@ -40,14 +44,32 @@ func StartAgentServer(parent task.Parent, opt Options) {
 		logging.Fatal().Err(err).Int("port", opt.Port).Msg("failed to listen on port")
 		return
 	}
-	defer l.Close()
 
 	server := &http.Server{
 		Handler:   handler.NewHandler(),
 		TLSConfig: tlsConfig,
 		ErrorLog:  log.New(logging.GetLogger(), "", 0),
 	}
+	go func() {
+		defer l.Close()
 		if err := server.Serve(tls.NewListener(l, tlsConfig)); err != nil {
 			logging.Fatal().Err(err).Int("port", opt.Port).Msg("failed to serve")
 		}
+	}()
+
+	logging.Info().Int("port", opt.Port).Msg("agent server started")
+
+	go func() {
+		defer t.Finish(nil)
+		<-parent.Context().Done()
+
+		ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+		defer cancel()
+
+		err := server.Shutdown(ctx)
+		if err != nil {
+			logging.Error().Err(err).Int("port", opt.Port).Msg("failed to shutdown agent server")
+		}
+		logging.Info().Int("port", opt.Port).Msg("agent server stopped")
+	}()
 }

internal/utils/testing/testing.go

@@ -1,6 +1,7 @@
 package utils
 
 import (
+	"bytes"
 	"errors"
 	"os"
 	"reflect"
@@ -102,6 +103,14 @@ func ExpectDeepEqual[T any](t *testing.T, got T, want T) {
 	}
 }
 
+func ExpectBytesEqual(t *testing.T, got []byte, want []byte) {
+	t.Helper()
+	if !bytes.Equal(got, want) {
+		t.Errorf("expected:\n%v, got\n%v", want, got)
+		t.FailNow()
+	}
+}
+
 func ExpectTrue(t *testing.T, got bool) {
 	t.Helper()
 	if !got {