Support the systemd option setting for 'Restart' and 'SuccessExitStat…

…us (#168)

* support the dependency config for linux systemd

* remote the binary file incorrectly added

* Support the systemd option setting for 'Restart' and 'SuccessExitStatus'

example/logging/main.go

@@ -63,13 +63,17 @@ func main() {
 	svcFlag := flag.String("service", "", "Control the system service.")
 	flag.Parse()
 
+	options := make(service.KeyValue)
+	options["Restart"] = "on-success"
+	options["SuccessExitStatus"] = "1 2 8 SIGKILL"
 	svcConfig := &service.Config{
 		Name:        "GoServiceExampleLogging",
 		DisplayName: "Go Service Example for Logging",
 		Description: "This is an example Go service that outputs log messages.",
 		Dependencies: []string{
 			"Requires=network.target",
 			"After=network-online.target syslog.target"},
+		Option: options,
 	}
 
 	prg := &program{}

service.go

@@ -81,6 +81,9 @@ const (
 	optionRunWait      = "RunWait"
 	optionReloadSignal = "ReloadSignal"
 	optionPIDFile      = "PIDFile"
+	optionRestart      = "Restart"
+
+	optionSuccessExitStatus = "SuccessExitStatus"
 
 	optionSystemdScript = "SystemdScript"
 	optionSysvScript    = "SysvScript"
@@ -139,6 +142,9 @@ type Config struct {
 	//    - ReloadSignal  string () [USR1, ...]     - Signal to send on reaload.
 	//    - PIDFile       string () [/run/prog.pid] - Location of the PID file.
 	//    - LogOutput     bool   (false)            - Redirect StdErr & StdOut to files.
+	//    - Restart       string (always)           - How shall service be restarted.
+	//    - SuccessExitStatus string ()             - The list of exit status that shall be considered as successful,
+	//                                                in addition to the default ones.
 	Option KeyValue
 }
 

service_systemd_linux.go

@@ -149,13 +149,17 @@ func (s *systemd) Install() error {
 		HasOutputFileSupport bool
 		ReloadSignal         string
 		PIDFile              string
+		Restart              string
+		SuccessExitStatus    string
 		LogOutput            bool
 	}{
 		s.Config,
 		path,
 		s.hasOutputFileSupport(),
 		s.Option.string(optionReloadSignal, ""),
 		s.Option.string(optionPIDFile, ""),
+		s.Option.string(optionRestart, "always"),
+		s.Option.string(optionSuccessExitStatus, ""),
 		s.Option.bool(optionLogOutput, optionLogOutputDefault),
 	}
 
@@ -260,7 +264,8 @@ ExecStart={{.Path|cmdEscape}}{{range .Arguments}} {{.|cmd}}{{end}}
 StandardOutput=file:/var/log/{{.Name}}.out
 StandardError=file:/var/log/{{.Name}}.err
 {{- end}}
-Restart=always
+{{if .Restart}}Restart={{.Restart}}{{end}}
+{{if .SuccessExitStatus}}SuccessExitStatus={{.SuccessExitStatus}}{{end}}
 RestartSec=120
 EnvironmentFile=-/etc/sysconfig/{{.Name}}