8e81e395b3
重构内容： - 移除复杂的 sudo systemctl restart 方案 - 改用 os.Exit(0) + systemd Restart=always 的标准做法 - 删除 sudoers 配置及相关代码 - 删除 sub2api-sudoers 文件 优势： - 代码从 85+ 行简化到 47 行 - 无需 sudo 权限配置 - 无需特殊用户 shell 配置 - 更简单、更可靠 - 符合行业最佳实践（Docker/K8s 等均采用此方案） 工作原理： - 服务调用 os.Exit(0) 优雅退出 - systemd 检测到退出后自动重启（Restart=always）
48 lines
1.3 KiB
Go
48 lines
1.3 KiB
Go
package sysutil
|
|
|
|
import (
|
|
"log"
|
|
"os"
|
|
"runtime"
|
|
"time"
|
|
)
|
|
|
|
// RestartService triggers a service restart by gracefully exiting.
|
|
//
|
|
// This relies on systemd's Restart=always configuration to automatically
|
|
// restart the service after it exits. This is the industry-standard approach:
|
|
// - Simple and reliable
|
|
// - No sudo permissions needed
|
|
// - No complex process management
|
|
// - Leverages systemd's native restart capability
|
|
//
|
|
// Prerequisites:
|
|
// - Linux OS with systemd
|
|
// - Service configured with Restart=always in systemd unit file
|
|
func RestartService() error {
|
|
if runtime.GOOS != "linux" {
|
|
log.Println("Service restart via exit only works on Linux with systemd")
|
|
return nil
|
|
}
|
|
|
|
log.Println("Initiating service restart by graceful exit...")
|
|
log.Println("systemd will automatically restart the service (Restart=always)")
|
|
|
|
// Give a moment for logs to flush and response to be sent
|
|
go func() {
|
|
time.Sleep(100 * time.Millisecond)
|
|
os.Exit(0)
|
|
}()
|
|
|
|
return nil
|
|
}
|
|
|
|
// RestartServiceAsync is a fire-and-forget version of RestartService.
|
|
// It logs errors instead of returning them, suitable for goroutine usage.
|
|
func RestartServiceAsync() {
|
|
if err := RestartService(); err != nil {
|
|
log.Printf("Service restart failed: %v", err)
|
|
log.Println("Please restart the service manually: sudo systemctl restart sub2api")
|
|
}
|
|
}
|