func main() {
reload := make(chan bool, 1)
reload <- true
for <-reload {
reload <- false
flag.Usage = usageExit
flag.Parse()
if flag.NFlag() == 0 {
usageExit()
}
var inputFilters []string
if *fInputFiltersLegacy != "" {
inputFilter := strings.TrimSpace(*fInputFiltersLegacy)
inputFilters = strings.Split(":"+inputFilter+":", ":")
}
if *fInputFilters != "" {
inputFilter := strings.TrimSpace(*fInputFilters)
inputFilters = strings.Split(":"+inputFilter+":", ":")
}
var outputFilters []string
if *fOutputFiltersLegacy != "" {
outputFilter := strings.TrimSpace(*fOutputFiltersLegacy)
outputFilters = strings.Split(":"+outputFilter+":", ":")
}
if *fOutputFilters != "" {
outputFilter := strings.TrimSpace(*fOutputFilters)
outputFilters = strings.Split(":"+outputFilter+":", ":")
}
if *fVersion {
v := fmt.Sprintf("Telegraf - Version %s", Version)
fmt.Println(v)
return
}
if *fSampleConfig {
config.PrintSampleConfig(inputFilters, outputFilters)
return
}
if *fUsage != "" {
if err := config.PrintInputConfig(*fUsage); err != nil {
if err2 := config.PrintOutputConfig(*fUsage); err2 != nil {
log.Fatalf("%s and %s", err, err2)
}
}
return
}
var (
c *config.Config
err error
)
if *fConfig != "" {
c = config.NewConfig()
c.OutputFilters = outputFilters
c.InputFilters = inputFilters
err = c.LoadConfig(*fConfig)
if err != nil {
log.Fatal(err)
}
} else {
fmt.Println("Usage: Telegraf")
flag.PrintDefaults()
return
}
if *fConfigDirectoryLegacy != "" {
err = c.LoadDirectory(*fConfigDirectoryLegacy)
if err != nil {
log.Fatal(err)
}
}
if *fConfigDirectory != "" {
err = c.LoadDirectory(*fConfigDirectory)
if err != nil {
log.Fatal(err)
}
}
if len(c.Outputs) == 0 {
log.Fatalf("Error: no outputs found, did you provide a valid config file?")
}
if len(c.Inputs) == 0 {
log.Fatalf("Error: no plugins found, did you provide a valid config file?")
}
ag, err := telegraf.NewAgent(c)
if err != nil {
log.Fatal(err)
}
if *fDebug {
ag.Config.Agent.Debug = true
}
if *fQuiet {
ag.Config.Agent.Quiet = true
}
if *fTest {
err = ag.Test()
if err != nil {
log.Fatal(err)
}
return
}
err = ag.Connect()
if err != nil {
log.Fatal(err)
}
shutdown := make(chan struct{})
signals := make(chan os.Signal)
signal.Notify(signals, os.Interrupt, syscall.SIGHUP)
go func() {
sig := <-signals
if sig == os.Interrupt {
close(shutdown)
}
if sig == syscall.SIGHUP {
log.Printf("Reloading Telegraf config\n")
<-reload
reload <- true
close(shutdown)
}
}()
log.Printf("Starting Telegraf (version %s)\n", Version)
log.Printf("Loaded outputs: %s", strings.Join(c.OutputNames(), " "))
log.Printf("Loaded plugins: %s", strings.Join(c.InputNames(), " "))
log.Printf("Tags enabled: %s", c.ListTags())
if *fPidfile != "" {
f, err := os.Create(*fPidfile)
if err != nil {
log.Fatalf("Unable to create pidfile: %s", err)
}
fmt.Fprintf(f, "%d\n", os.Getpid())
f.Close()
}
ag.Run(shutdown)
}
}
func main() {
flag.Parse()
var pluginFilters []string
if *fPLuginFilters != "" {
pluginsFilter := strings.TrimSpace(*fPLuginFilters)
pluginFilters = strings.Split(":"+pluginsFilter+":", ":")
}
var outputFilters []string
if *fOutputFilters != "" {
outputFilter := strings.TrimSpace(*fOutputFilters)
outputFilters = strings.Split(":"+outputFilter+":", ":")
}
if *fVersion {
v := fmt.Sprintf("Telegraf - Version %s", Version)
fmt.Println(v)
return
}
if *fSampleConfig {
config.PrintSampleConfig(pluginFilters, outputFilters)
return
}
if *fUsage != "" {
if err := config.PrintPluginConfig(*fUsage); err != nil {
if err2 := config.PrintOutputConfig(*fUsage); err2 != nil {
log.Fatalf("%s and %s", err, err2)
}
}
return
}
var (
c *config.Config
err error
)
if *fConfig != "" {
c = config.NewConfig()
c.OutputFilters = outputFilters
c.PluginFilters = pluginFilters
err = c.LoadConfig(*fConfig)
if err != nil {
log.Fatal(err)
}
} else {
fmt.Println("Usage: Telegraf")
flag.PrintDefaults()
return
}
if *fConfigDirectory != "" {
err = c.LoadDirectory(*fConfigDirectory)
if err != nil {
log.Fatal(err)
}
}
if len(c.Outputs) == 0 {
log.Fatalf("Error: no outputs found, did you provide a valid config file?")
}
if len(c.Plugins) == 0 {
log.Fatalf("Error: no plugins found, did you provide a valid config file?")
}
ag, err := telegraf.NewAgent(c)
if err != nil {
log.Fatal(err)
}
if *fDebug {
ag.Config.Agent.Debug = true
}
if *fTest {
err = ag.Test()
if err != nil {
log.Fatal(err)
}
return
}
err = ag.Connect()
if err != nil {
log.Fatal(err)
}
shutdown := make(chan struct{})
signals := make(chan os.Signal)
signal.Notify(signals, os.Interrupt)
go func() {
<-signals
close(shutdown)
}()
log.Printf("Starting Telegraf (version %s)\n", Version)
log.Printf("Loaded outputs: %s", strings.Join(c.OutputNames(), " "))
log.Printf("Loaded plugins: %s", strings.Join(c.PluginNames(), " "))
log.Printf("Tags enabled: %s", c.ListTags())
if *fPidfile != "" {
f, err := os.Create(*fPidfile)
if err != nil {
log.Fatalf("Unable to create pidfile: %s", err)
}
fmt.Fprintf(f, "%d\n", os.Getpid())
f.Close()
}
ag.Run(shutdown)
}