func reloadLoop(stop chan struct{}, s service.Service) {
defer func() {
if service.Interactive() {
os.Exit(0)
}
return
}()
reload := make(chan bool, 1)
reload <- true
for <-reload {
reload <- false
flag.Usage = func() { usageExit(0) }
flag.Parse()
args := flag.Args()
var inputFilters []string
if *fInputFilters != "" {
inputFilter := strings.TrimSpace(*fInputFilters)
inputFilters = strings.Split(":"+inputFilter+":", ":")
}
var outputFilters []string
if *fOutputFilters != "" {
outputFilter := strings.TrimSpace(*fOutputFilters)
outputFilters = strings.Split(":"+outputFilter+":", ":")
}
if len(args) > 0 {
switch args[0] {
case "version":
v := fmt.Sprintf("Telegraf - version %s", version)
fmt.Println(v)
return
case "config":
config.PrintSampleConfig(inputFilters, outputFilters)
return
}
}
// switch for flags which just do something and exit immediately
switch {
case *fOutputList:
fmt.Println("Available Output Plugins:")
for k, _ := range outputs.Outputs {
fmt.Printf(" %s\n", k)
}
return
case *fInputList:
fmt.Println("Available Input Plugins:")
for k, _ := range inputs.Inputs {
fmt.Printf(" %s\n", k)
}
return
case *fVersion:
v := fmt.Sprintf("Telegraf - version %s", version)
fmt.Println(v)
return
case *fSampleConfig:
config.PrintSampleConfig(inputFilters, outputFilters)
return
case *fUsage != "":
if err := config.PrintInputConfig(*fUsage); err != nil {
if err2 := config.PrintOutputConfig(*fUsage); err2 != nil {
log.Fatalf("%s and %s", err, err2)
}
}
return
case *fService != "" && runtime.GOOS == "windows":
if *fConfig != "" {
(*svcConfig).Arguments = []string{"-config", *fConfig}
}
err := service.Control(s, *fService)
if err != nil {
log.Fatal(err)
}
return
}
// If no other options are specified, load the config file and run.
c := config.NewConfig()
c.OutputFilters = outputFilters
c.InputFilters = inputFilters
err := c.LoadConfig(*fConfig)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
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 inputs found, did you provide a valid config file?")
}
ag, err := agent.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() {
select {
case sig := <-signals:
if sig == os.Interrupt {
close(shutdown)
}
if sig == syscall.SIGHUP {
log.Printf("Reloading Telegraf config\n")
<-reload
reload <- true
close(shutdown)
}
case <-stop:
close(shutdown)
}
}()
log.Printf("Starting Telegraf (version %s)\n", version)
log.Printf("Loaded outputs: %s", strings.Join(c.OutputNames(), " "))
log.Printf("Loaded inputs: %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() {
reload := make(chan bool, 1)
reload <- true
for <-reload {
reload <- false
flag.Usage = func() { usageExit(0) }
flag.Parse()
args := flag.Args()
if flag.NFlag() == 0 && len(args) == 0 {
usageExit(0)
}
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 len(args) > 0 {
switch args[0] {
case "version":
v := fmt.Sprintf("Telegraf - Version %s", Version)
fmt.Println(v)
return
case "config":
config.PrintSampleConfig(inputFilters, outputFilters)
return
}
}
if *fOutputList {
fmt.Println("Available Output Plugins:")
for k, _ := range outputs.Outputs {
fmt.Printf(" %s\n", k)
}
return
}
if *fInputList {
fmt.Println("Available Input Plugins:")
for k, _ := range inputs.Inputs {
fmt.Printf(" %s\n", k)
}
return
}
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("You must specify a config file. See telegraf --help")
os.Exit(1)
}
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 inputs found, did you provide a valid config file?")
}
ag, err := agent.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 inputs: %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 reloadLoop(stop chan struct{}, s service.Service) {
defer func() {
if service.Interactive() {
os.Exit(0)
}
return
}()
reload := make(chan bool, 1)
reload <- true
for <-reload {
reload <- false
flag.Parse()
args := flag.Args()
var inputFilters []string
if *fInputFilters != "" {
inputFilter := strings.TrimSpace(*fInputFilters)
inputFilters = strings.Split(":"+inputFilter+":", ":")
}
var outputFilters []string
if *fOutputFilters != "" {
outputFilter := strings.TrimSpace(*fOutputFilters)
outputFilters = strings.Split(":"+outputFilter+":", ":")
}
var aggregatorFilters []string
if *fAggregatorFilters != "" {
aggregatorFilter := strings.TrimSpace(*fAggregatorFilters)
aggregatorFilters = strings.Split(":"+aggregatorFilter+":", ":")
}
var processorFilters []string
if *fProcessorFilters != "" {
processorFilter := strings.TrimSpace(*fProcessorFilters)
processorFilters = strings.Split(":"+processorFilter+":", ":")
}
if len(args) > 0 {
switch args[0] {
case "version":
fmt.Printf("Telegraf v%s (git: %s %s)\n", version, branch, commit)
return
case "config":
config.PrintSampleConfig(
inputFilters,
outputFilters,
aggregatorFilters,
processorFilters,
)
return
}
}
// switch for flags which just do something and exit immediately
switch {
case *fOutputList:
fmt.Println("Available Output Plugins:")
for k, _ := range outputs.Outputs {
fmt.Printf(" %s\n", k)
}
return
case *fInputList:
fmt.Println("Available Input Plugins:")
for k, _ := range inputs.Inputs {
fmt.Printf(" %s\n", k)
}
return
case *fVersion:
fmt.Printf("Telegraf v%s (git: %s %s)\n", version, branch, commit)
return
case *fSampleConfig:
config.PrintSampleConfig(
inputFilters,
outputFilters,
aggregatorFilters,
processorFilters,
)
return
case *fUsage != "":
if err := config.PrintInputConfig(*fUsage); err != nil {
if err2 := config.PrintOutputConfig(*fUsage); err2 != nil {
log.Fatalf("E! %s and %s", err, err2)
}
}
return
}
// If no other options are specified, load the config file and run.
c := config.NewConfig()
c.OutputFilters = outputFilters
c.InputFilters = inputFilters
err := c.LoadConfig(*fConfig)
if err != nil {
log.Fatal("E! " + err.Error())
}
if *fConfigDirectory != "" {
err = c.LoadDirectory(*fConfigDirectory)
if err != nil {
log.Fatal("E! " + err.Error())
}
}
if len(c.Outputs) == 0 {
log.Fatalf("E! Error: no outputs found, did you provide a valid config file?")
}
if len(c.Inputs) == 0 {
log.Fatalf("E! Error: no inputs found, did you provide a valid config file?")
}
ag, err := agent.NewAgent(c)
if err != nil {
log.Fatal("E! " + err.Error())
}
// Setup logging
logger.SetupLogging(
ag.Config.Agent.Debug || *fDebug,
ag.Config.Agent.Quiet || *fQuiet,
ag.Config.Agent.Logfile,
)
if *fTest {
err = ag.Test()
if err != nil {
log.Fatal("E! " + err.Error())
}
return
}
err = ag.Connect()
if err != nil {
log.Fatal("E! " + err.Error())
}
shutdown := make(chan struct{})
signals := make(chan os.Signal)
signal.Notify(signals, os.Interrupt, syscall.SIGHUP)
go func() {
select {
case sig := <-signals:
if sig == os.Interrupt {
close(shutdown)
}
if sig == syscall.SIGHUP {
log.Printf("I! Reloading Telegraf config\n")
<-reload
reload <- true
close(shutdown)
}
case <-stop:
close(shutdown)
}
}()
log.Printf("I! Starting Telegraf (version %s)\n", version)
log.Printf("I! Loaded outputs: %s", strings.Join(c.OutputNames(), " "))
log.Printf("I! Loaded inputs: %s", strings.Join(c.InputNames(), " "))
log.Printf("I! Tags enabled: %s", c.ListTags())
if *fPidfile != "" {
f, err := os.Create(*fPidfile)
if err != nil {
log.Fatalf("E! Unable to create pidfile: %s", err)
}
fmt.Fprintf(f, "%d\n", os.Getpid())
f.Close()
}
ag.Run(shutdown)
}
}