Example #1
0
func TestAgent_LoadOutput(t *testing.T) {
	c := config.NewConfig()
	c.OutputFilters = []string{"influxdb"}
	err := c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
	assert.NoError(t, err)
	a, _ := NewAgent(c)
	assert.Equal(t, 2, len(a.Config.Outputs))

	c = config.NewConfig()
	c.OutputFilters = []string{"kafka"}
	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
	assert.NoError(t, err)
	a, _ = NewAgent(c)
	assert.Equal(t, 1, len(a.Config.Outputs))

	c = config.NewConfig()
	c.OutputFilters = []string{}
	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
	assert.NoError(t, err)
	a, _ = NewAgent(c)
	assert.Equal(t, 3, len(a.Config.Outputs))

	c = config.NewConfig()
	c.OutputFilters = []string{"foo"}
	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
	assert.NoError(t, err)
	a, _ = NewAgent(c)
	assert.Equal(t, 0, len(a.Config.Outputs))

	c = config.NewConfig()
	c.OutputFilters = []string{"influxdb", "foo"}
	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
	assert.NoError(t, err)
	a, _ = NewAgent(c)
	assert.Equal(t, 2, len(a.Config.Outputs))

	c = config.NewConfig()
	c.OutputFilters = []string{"influxdb", "kafka"}
	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
	assert.NoError(t, err)
	assert.Equal(t, 3, len(c.Outputs))
	a, _ = NewAgent(c)
	assert.Equal(t, 3, len(a.Config.Outputs))

	c = config.NewConfig()
	c.OutputFilters = []string{"influxdb", "foo", "kafka", "bar"}
	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
	assert.NoError(t, err)
	a, _ = NewAgent(c)
	assert.Equal(t, 3, len(a.Config.Outputs))
}
Example #2
0
func TestAgent_LoadPlugin(t *testing.T) {
	c := config.NewConfig()
	c.InputFilters = []string{"mysql"}
	err := c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
	assert.NoError(t, err)
	a, _ := NewAgent(c)
	assert.Equal(t, 1, len(a.Config.Inputs))

	c = config.NewConfig()
	c.InputFilters = []string{"foo"}
	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
	assert.NoError(t, err)
	a, _ = NewAgent(c)
	assert.Equal(t, 0, len(a.Config.Inputs))

	c = config.NewConfig()
	c.InputFilters = []string{"mysql", "foo"}
	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
	assert.NoError(t, err)
	a, _ = NewAgent(c)
	assert.Equal(t, 1, len(a.Config.Inputs))

	c = config.NewConfig()
	c.InputFilters = []string{"mysql", "redis"}
	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
	assert.NoError(t, err)
	a, _ = NewAgent(c)
	assert.Equal(t, 2, len(a.Config.Inputs))

	c = config.NewConfig()
	c.InputFilters = []string{"mysql", "foo", "redis", "bar"}
	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
	assert.NoError(t, err)
	a, _ = NewAgent(c)
	assert.Equal(t, 2, len(a.Config.Inputs))
}
Example #3
0
func main() {
	reload := make(chan bool, 1)
	reload <- true
	for <-reload {
		reload <- false
		flag.Usage = func() { usageExit(0) }
		flag.Parse()

		if flag.NFlag() == 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 *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)
	}
}