func main() {
flag.Parse()
config, logger := parseConfig(*debug, *configFilePath, *logFilePath)
dopplerClientPool := initializeClientPool(config, logger)
dopplerForwarder := dopplerforwarder.New(dopplerClientPool, logger)
byteSigner := signer.New(config.SharedSecret, dopplerForwarder)
marshaller := eventmarshaller.New(byteSigner, logger)
varzShim := varzforwarder.New(config.Job, metricTTL, marshaller, logger)
messageTagger := tagger.New(config.Deployment, config.Job, config.Index, varzShim)
aggregator := messageaggregator.New(messageTagger, logger)
dropsondeUnmarshaller := eventunmarshaller.New(aggregator, logger)
dropsondeReader := networkreader.New(fmt.Sprintf("localhost:%d", config.DropsondeIncomingMessagesPort), "dropsondeAgentListener", dropsondeUnmarshaller, logger)
// TODO: remove next two lines when legacy support is removed (or extracted to injector)
legacyUnmarshaller := legacyunmarshaller.New(aggregator, logger)
legacyReader := networkreader.New(fmt.Sprintf("localhost:%d", config.LegacyIncomingMessagesPort), "legacyAgentListener", legacyUnmarshaller, logger)
instrumentables := []instrumentation.Instrumentable{
legacyReader,
dropsondeReader,
legacyUnmarshaller,
dropsondeUnmarshaller,
aggregator,
varzShim,
marshaller,
}
go startMonitoringEndpoints(config, instrumentables, logger)
go legacyReader.Start()
dropsondeReader.Start()
}
"metron/writers/mocks"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("VarzForwarder", func() {
var (
mockWriter *mocks.MockEnvelopeWriter
forwarder *varzforwarder.VarzForwarder
)
BeforeEach(func() {
mockWriter = &mocks.MockEnvelopeWriter{}
forwarder = varzforwarder.New("test-component", 100*time.Millisecond, mockWriter, loggertesthelper.Logger())
})
Describe("Emit", func() {
It("includes metrics for each ValueMetric sent in", func() {
forwarder.Write(metric("origin-1", "metric", 0))
forwarder.Write(metric("origin-2", "metric", 0))
var varz instrumentation.Context
Eventually(func() []instrumentation.Metric { varz = forwarder.Emit(); return varz.Metrics }).Should(HaveLen(2))
Expect(findMetricByName(varz.Metrics, "origin-1.metric")).ToNot(BeNil())
Expect(findMetricByName(varz.Metrics, "origin-2.metric")).ToNot(BeNil())
})
It("keeps track of the dea logging agent total message", func() {
totalLogMessagesSentMetric := metric("dea-logging-agent", "logSenderTotalMessagesRead", 100)