feat: config center (#2997)

* chore: config * chore: config * chore: config * chore: config * chore: config * feat: config * fix: config * fix: config * feat: config * feat: config * feat: config * feat: config * feat: config * feat: config * feat: config * feat: config * feat: config * feat: config * feat: config * feat: config * feat: config * feat: config * feat: config * feat: config * feat: config * feat: config * fix: config * fix: config * fix: config * fix: config * fix: config * fix: config * fix: config * fix: config * fix: config * fix: config * fix: config * fix: config * fix: config * fix: config * fix: config * fix: config * fix: config * fix: config
2026-05-17 23:39:04 +08:00 · 2024-12-25 18:08:08 +08:00
parent 66abd9e1b9
commit 1110af98ef
43 changed files with 1042 additions and 281 deletions
@@ -0,0 +1,111 @@
+package etcd
+
+import (
+	"context"
+	"os"
+	"os/exec"
+	"runtime"
+	"sync"
+	"syscall"
+
+	"github.com/openimsdk/tools/errs"
+	"github.com/openimsdk/tools/log"
+	"github.com/openimsdk/tools/utils/datautil"
+	clientv3 "go.etcd.io/etcd/client/v3"
+)
+
+const (
+	ConfigKeyPrefix = "/open-im/config/"
+	RestartKey      = "restart"
+)
+
+var (
+	ShutDowns []func() error
+)
+
+func RegisterShutDown(shutDown ...func() error) {
+	ShutDowns = append(ShutDowns, shutDown...)
+}
+
+type ConfigManager struct {
+	client           *clientv3.Client
+	watchConfigNames []string
+	lock             sync.Mutex
+}
+
+func BuildKey(s string) string {
+	return ConfigKeyPrefix + s
+}
+
+func NewConfigManager(client *clientv3.Client, configNames []string) *ConfigManager {
+	return &ConfigManager{
+		client:           client,
+		watchConfigNames: datautil.Batch(func(s string) string { return BuildKey(s) }, append(configNames, RestartKey))}
+}
+
+func (c *ConfigManager) Watch(ctx context.Context) {
+	chans := make([]clientv3.WatchChan, 0, len(c.watchConfigNames))
+	for _, name := range c.watchConfigNames {
+		chans = append(chans, c.client.Watch(ctx, name, clientv3.WithPrefix()))
+	}
+
+	doWatch := func(watchChan clientv3.WatchChan) {
+		for watchResp := range watchChan {
+			if watchResp.Err() != nil {
+				log.ZError(ctx, "watch err", errs.Wrap(watchResp.Err()))
+				continue
+			}
+			for _, event := range watchResp.Events {
+				if event.IsModify() {
+					if datautil.Contain(string(event.Kv.Key), c.watchConfigNames...) {
+						c.lock.Lock()
+						err := restartServer(ctx)
+						if err != nil {
+							log.ZError(ctx, "restart server err", err)
+						}
+						c.lock.Unlock()
+					}
+				}
+			}
+		}
+	}
+	for _, ch := range chans {
+		go doWatch(ch)
+	}
+}
+
+func restartServer(ctx context.Context) error {
+	exePath, err := os.Executable()
+	if err != nil {
+		return errs.New("get executable path fail").Wrap()
+	}
+
+	args := os.Args
+	env := os.Environ()
+
+	cmd := exec.Command(exePath, args[1:]...)
+	cmd.Env = env
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	cmd.Stdin = os.Stdin
+
+	if runtime.GOOS != "windows" {
+		cmd.SysProcAttr = &syscall.SysProcAttr{}
+	}
+	log.ZInfo(ctx, "shutdown server")
+	for _, f := range ShutDowns {
+		if err = f(); err != nil {
+			log.ZError(ctx, "shutdown fail", err)
+		}
+	}
+
+	log.ZInfo(ctx, "restart server")
+	err = cmd.Start()
+	if err != nil {
+		return errs.New("restart server fail").Wrap()
+	}
+	log.ZInfo(ctx, "cmd start over")
+
+	os.Exit(0)
+	return nil
+}
@@ -0,0 +1,15 @@
+// Copyright © 2024 OpenIM. All rights reserved.
+//
+// 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 etcd // import "github.com/openimsdk/open-im-server/v3/pkg/common/discovery/etcd"