package daemon import ( //"github.com/davecgh/go-spew/spew" "log" "os" "path/filepath" "time" "github.com/gravitl/netmaker/netclient/ncutils" ) const EXEC_DIR = "/sbin/" // SetupSystemDDaemon - sets system daemon for supported machines func SetupSystemDDaemon(interval string) error { if ncutils.IsWindows() { return nil } dir, err := filepath.Abs(filepath.Dir(os.Args[0])) if err != nil { return err } binarypath := dir + "/netclient" _, err = os.Stat("/etc/netclient/config") if os.IsNotExist(err) { os.MkdirAll("/etc/netclient/config", 0744) } else if err != nil { log.Println("couldnt find or create /etc/netclient") return err } //install binary //should check if the existing binary is the corect version -- for now only copy if file doesn't exist if !ncutils.FileExists(EXEC_DIR + "netclient") { err = ncutils.Copy(binarypath, EXEC_DIR+"netclient") if err != nil { log.Println(err) return err } } systemservice := `[Unit] Description=Netclient Daemon Documentation=https://docs.netmaker.org https://k8s.netmaker.org After=network-online.target Wants=network-online.target systemd-networkd-wait-online.service [Service] User=root Type=simple ExecStart=/sbin/netclient daemon Restart=on-failure RestartSec=15s [Install] WantedBy=multi-user.target ` servicebytes := []byte(systemservice) if !ncutils.FileExists("/etc/systemd/system/netclient.service") { err = os.WriteFile("/etc/systemd/system/netclient.service", servicebytes, 0644) if err != nil { log.Println(err) return err } } _, _ = ncutils.RunCmd("systemctl enable netclient.service", true) _, _ = ncutils.RunCmd("systemctl daemon-reload", true) _, _ = ncutils.RunCmd("systemctl start netclient.service", true) return nil } // RestartSystemD - restarts systemd service func RestartSystemD() { ncutils.PrintLog("restarting netclient.service", 1) time.Sleep(time.Second) _, _ = ncutils.RunCmd("systemctl restart netclient.service", true) } // CleanupLinux - cleans up neclient configs func CleanupLinux() { if err := os.RemoveAll(ncutils.GetNetclientPath()); err != nil { ncutils.PrintLog("Removing netclient configs: "+err.Error(), 1) } if err := os.Remove(EXEC_DIR + "netclient"); err != nil { ncutils.PrintLog("Removing netclient binary: "+err.Error(), 1) } } // StopSystemD - tells system to stop systemd func StopSystemD() { ncutils.RunCmd("systemctl stop netclient.service", false) } // RemoveSystemDServices - removes the systemd services on a machine func RemoveSystemDServices() error { //sysExec, err := exec.LookPath("systemctl") var err error if !ncutils.IsWindows() && isOnlyService() { if err != nil { log.Println(err) } ncutils.RunCmd("systemctl disable netclient.service", false) ncutils.RunCmd("systemctl disable netclient.timer", false) if ncutils.FileExists("/etc/systemd/system/netclient.service") { err = os.Remove("/etc/systemd/system/netclient.service") if err != nil { ncutils.Log("Error removing /etc/systemd/system/netclient.service. Please investigate.") } } if ncutils.FileExists("/etc/systemd/system/netclient.timer") { err = os.Remove("/etc/systemd/system/netclient.timer") if err != nil { ncutils.Log("Error removing /etc/systemd/system/netclient.timer. Please investigate.") } } ncutils.RunCmd("systemctl daemon-reload", false) ncutils.RunCmd("systemctl reset-failed", false) ncutils.Log("removed systemd remnants if any existed") } return nil } func isOnlyService() bool { files, err := filepath.Glob("/etc/netclient/config/netconfig-*") if err != nil { return false } return len(files) == 0 }