TUN-7597: Add flag to disable auto-update services to be installed
Summary: This commit adds a new flag "no-update-service" to the `cloudflared service install` command. Previously, when installing cloudflared as a linux service it would always get auto-updates, now with this new flag it is possible to disable the auto updates of the service. This flag allows to define whether we want cloudflared service to **perform auto updates or not**. For **systemd this is done by removing the installation of the update service and timer**, for **sysv** this is done by **setting the cloudflared autoupdate flag**.
This commit is contained in:
João "Pisco" Fernandes
parent
42e0540395
commit
af3a66d60e
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@ -25,6 +25,9 @@ func runApp(app *cli.App, graceShutdownC chan struct{}) {
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Name: "install",
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Usage: "Install cloudflared as a system service",
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Action: cliutil.ConfiguredAction(installLinuxService),
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Flags: []cli.Flag{
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noUpdateServiceFlag,
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},
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},
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{
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Name: "uninstall",
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@ -39,15 +42,17 @@ func runApp(app *cli.App, graceShutdownC chan struct{}) {
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// The directory and files that are used by the service.
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// These are hard-coded in the templates below.
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const (
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serviceConfigDir = "/etc/cloudflared"
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serviceConfigFile = "config.yml"
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serviceCredentialFile = "cert.pem"
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serviceConfigPath = serviceConfigDir + "/" + serviceConfigFile
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cloudflaredService = "cloudflared.service"
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serviceConfigDir = "/etc/cloudflared"
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serviceConfigFile = "config.yml"
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serviceCredentialFile = "cert.pem"
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serviceConfigPath = serviceConfigDir + "/" + serviceConfigFile
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cloudflaredService = "cloudflared.service"
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cloudflaredUpdateService = "cloudflared-update.service"
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cloudflaredUpdateTimer = "cloudflared-update.timer"
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)
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var systemdTemplates = []ServiceTemplate{
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{
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var systemdAllTemplates = map[string]ServiceTemplate{
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cloudflaredService: {
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Path: fmt.Sprintf("/etc/systemd/system/%s", cloudflaredService),
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Content: `[Unit]
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Description=cloudflared
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@ -64,8 +69,8 @@ RestartSec=5s
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WantedBy=multi-user.target
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`,
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},
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{
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Path: "/etc/systemd/system/cloudflared-update.service",
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cloudflaredUpdateService: {
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Path: fmt.Sprintf("/etc/systemd/system/%s", cloudflaredUpdateService),
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Content: `[Unit]
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Description=Update cloudflared
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After=network.target
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@ -74,8 +79,8 @@ After=network.target
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ExecStart=/bin/bash -c '{{ .Path }} update; code=$?; if [ $code -eq 11 ]; then systemctl restart cloudflared; exit 0; fi; exit $code'
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`,
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},
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{
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Path: "/etc/systemd/system/cloudflared-update.timer",
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cloudflaredUpdateTimer: {
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Path: fmt.Sprintf("/etc/systemd/system/%s", cloudflaredUpdateTimer),
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Content: `[Unit]
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Description=Update cloudflared
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@ -106,7 +111,7 @@ var sysvTemplate = ServiceTemplate{
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# Description: cloudflared agent
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### END INIT INFO
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name=$(basename $(readlink -f $0))
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cmd="{{.Path}} --pidfile /var/run/$name.pid --autoupdate-freq 24h0m0s{{ range .ExtraArgs }} {{ . }}{{ end }}"
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cmd="{{.Path}} --pidfile /var/run/$name.pid {{ range .ExtraArgs }} {{ . }}{{ end }}"
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pid_file="/var/run/$name.pid"
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stdout_log="/var/log/$name.log"
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stderr_log="/var/log/$name.err"
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@ -178,6 +183,14 @@ exit 0
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`,
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}
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var (
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noUpdateServiceFlag = &cli.BoolFlag{
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Name: "no-update-service",
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Usage: "Disable auto-update of the cloudflared linux service, which restarts the server to upgrade for new versions.",
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Value: false,
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}
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)
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func isSystemd() bool {
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if _, err := os.Stat("/run/systemd/system"); err == nil {
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return true
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@ -196,6 +209,9 @@ func installLinuxService(c *cli.Context) error {
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Path: etPath,
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}
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// Check if the "no update flag" is set
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autoUpdate := !c.IsSet(noUpdateServiceFlag.Name)
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var extraArgsFunc func(c *cli.Context, log *zerolog.Logger) ([]string, error)
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if c.NArg() == 0 {
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extraArgsFunc = buildArgsForConfig
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@ -213,10 +229,10 @@ func installLinuxService(c *cli.Context) error {
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switch {
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case isSystemd():
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log.Info().Msgf("Using Systemd")
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err = installSystemd(&templateArgs, log)
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err = installSystemd(&templateArgs, autoUpdate, log)
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default:
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log.Info().Msgf("Using SysV")
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err = installSysv(&templateArgs, log)
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err = installSysv(&templateArgs, autoUpdate, log)
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}
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if err == nil {
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@ -261,7 +277,20 @@ credentials-file: CREDENTIALS-FILE
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}, nil
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}
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func installSystemd(templateArgs *ServiceTemplateArgs, log *zerolog.Logger) error {
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func installSystemd(templateArgs *ServiceTemplateArgs, autoUpdate bool, log *zerolog.Logger) error {
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var systemdTemplates []ServiceTemplate
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if autoUpdate {
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systemdTemplates = []ServiceTemplate{
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systemdAllTemplates[cloudflaredService],
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systemdAllTemplates[cloudflaredUpdateService],
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systemdAllTemplates[cloudflaredUpdateTimer],
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}
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} else {
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systemdTemplates = []ServiceTemplate{
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systemdAllTemplates[cloudflaredService],
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}
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}
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for _, serviceTemplate := range systemdTemplates {
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err := serviceTemplate.Generate(templateArgs)
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if err != nil {
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@ -273,10 +302,14 @@ func installSystemd(templateArgs *ServiceTemplateArgs, log *zerolog.Logger) erro
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log.Err(err).Msgf("systemctl enable %s error", cloudflaredService)
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return err
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}
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if err := runCommand("systemctl", "start", "cloudflared-update.timer"); err != nil {
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log.Err(err).Msg("systemctl start cloudflared-update.timer error")
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return err
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if autoUpdate {
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if err := runCommand("systemctl", "start", cloudflaredUpdateTimer); err != nil {
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log.Err(err).Msgf("systemctl start %s error", cloudflaredUpdateTimer)
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return err
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}
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}
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if err := runCommand("systemctl", "daemon-reload"); err != nil {
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log.Err(err).Msg("systemctl daemon-reload error")
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return err
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@ -284,12 +317,19 @@ func installSystemd(templateArgs *ServiceTemplateArgs, log *zerolog.Logger) erro
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return runCommand("systemctl", "start", cloudflaredService)
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}
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func installSysv(templateArgs *ServiceTemplateArgs, log *zerolog.Logger) error {
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func installSysv(templateArgs *ServiceTemplateArgs, autoUpdate bool, log *zerolog.Logger) error {
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confPath, err := sysvTemplate.ResolvePath()
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if err != nil {
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log.Err(err).Msg("error resolving system path")
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return err
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}
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if autoUpdate {
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templateArgs.ExtraArgs = append([]string{"--autoupdate-freq 24h0m0s"}, templateArgs.ExtraArgs...)
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} else {
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templateArgs.ExtraArgs = append([]string{"--no-autoupdate"}, templateArgs.ExtraArgs...)
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}
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if err := sysvTemplate.Generate(templateArgs); err != nil {
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log.Err(err).Msg("error generating system template")
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return err
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@ -327,19 +367,35 @@ func uninstallLinuxService(c *cli.Context) error {
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}
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func uninstallSystemd(log *zerolog.Logger) error {
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if err := runCommand("systemctl", "disable", cloudflaredService); err != nil {
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log.Err(err).Msgf("systemctl disable %s error", cloudflaredService)
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return err
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// Get only the installed services
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installedServices := make(map[string]ServiceTemplate)
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for serviceName, serviceTemplate := range systemdAllTemplates {
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if err := runCommand("systemctl", "status", serviceName); err == nil {
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installedServices[serviceName] = serviceTemplate
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} else {
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log.Info().Msgf("Service '%s' not installed, skipping its uninstall", serviceName)
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}
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}
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if err := runCommand("systemctl", "stop", cloudflaredService); err != nil {
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log.Err(err).Msgf("systemctl stop %s error", cloudflaredService)
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return err
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if _, exists := installedServices[cloudflaredService]; exists {
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if err := runCommand("systemctl", "disable", cloudflaredService); err != nil {
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log.Err(err).Msgf("systemctl disable %s error", cloudflaredService)
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return err
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}
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if err := runCommand("systemctl", "stop", cloudflaredService); err != nil {
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log.Err(err).Msgf("systemctl stop %s error", cloudflaredService)
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return err
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}
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}
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if err := runCommand("systemctl", "stop", "cloudflared-update.timer"); err != nil {
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log.Err(err).Msg("systemctl stop cloudflared-update.timer error")
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return err
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if _, exists := installedServices[cloudflaredUpdateTimer]; exists {
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if err := runCommand("systemctl", "stop", cloudflaredUpdateTimer); err != nil {
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log.Err(err).Msgf("systemctl stop %s error", cloudflaredUpdateTimer)
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return err
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}
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}
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for _, serviceTemplate := range systemdTemplates {
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for _, serviceTemplate := range installedServices {
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if err := serviceTemplate.Remove(); err != nil {
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log.Err(err).Msg("error removing service template")
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return err
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