func defaultConf() HandlerConf {
return HandlerConf{
StoreAdapter: fakestoreadapter.New(),
Clock: fakeclock.NewFakeClock(time.Unix(100, 0)),
Logger: fakelogger.NewFakeLogger(),
}
}
func makeHandlerAndStore(conf HandlerConf) (http.Handler, store.Store, error) {
config, _ := config.DefaultConfig()
store := store.NewStore(config, conf.StoreAdapter, fakelogger.NewFakeLogger())
handler, err := handlers.New(conf.Logger, store, conf.TimeProvider)
return handler, store, err
}
func defaultConf() HandlerConf {
return HandlerConf{
StoreAdapter: fakestoreadapter.New(),
TimeProvider: &faketimeprovider.FakeTimeProvider{
TimeToProvide: time.Unix(100, 0),
},
Logger: fakelogger.NewFakeLogger(),
}
}
func (coordinator *MCATCoordinator) PrepForNextTest() (*CLIRunner, *Simulator, *startstoplistener.StartStopListener) {
coordinator.StoreRunner.Reset()
coordinator.startStopListener.Reset()
coordinator.StateServer.Reset()
if coordinator.currentCLIRunner != nil {
coordinator.currentCLIRunner.Cleanup()
}
coordinator.currentCLIRunner = NewCLIRunner(coordinator.StoreRunner.NodeURLS(), coordinator.DesiredStateServerBaseUrl, coordinator.NatsPort, coordinator.MetricsServerPort, coordinator.Verbose)
store := storepackage.NewStore(coordinator.Conf, coordinator.StoreAdapter, fakelogger.NewFakeLogger())
simulator := NewSimulator(coordinator.Conf, coordinator.StoreRunner, store, coordinator.StateServer, coordinator.currentCLIRunner, coordinator.MessageBus)
return coordinator.currentCLIRunner, simulator, coordinator.startStopListener
}
func main() {
cmdsToStop = []*exec.Cmd{}
registerSignalHandler()
nats = natsrunner.NewNATSRunner(4222)
nats.Start()
fakeCC := desiredstateserver.NewDesiredStateServer()
go fakeCC.SpinUp(6001)
// etcd = storerunner.NewETCDClusterRunner(4001, 1)
// etcd.Start()
conf, _ := config.FromFile("./config.json")
adapter := storeadapter.NewETCDStoreAdapter(conf.StoreURLs, workerpool.NewWorkerPool(30))
adapter.Connect()
store = storepackage.NewStore(conf, adapter, fakelogger.NewFakeLogger())
r := rand.New(rand.NewSource(time.Now().Unix()))
num, err := strconv.Atoi(os.Args[1])
if err != nil {
panic(err)
}
sim := simulator.New(num, 10, r, nats.MessageBus, fakeCC)
//start all the HM components (make them pipe to stdout)
start("listen", false)
start("fetch_desired", true)
start("analyze", true)
start("send", true)
start("serve_metrics", false)
start("serve_api", false)
time.Sleep(time.Second)
go Tick(sim)
go Fetch()
select {}
}
"github.com/cloudfoundry/storeadapter/fakestoreadapter"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"time"
)
var _ = Describe("Metrics Accountant", func() {
var store storepackage.Store
var accountant MetricsAccountant
var fakeStoreAdapter *fakestoreadapter.FakeStoreAdapter
conf, _ := config.DefaultConfig()
BeforeEach(func() {
fakeStoreAdapter = fakestoreadapter.New()
store = storepackage.NewStore(conf, fakeStoreAdapter, fakelogger.NewFakeLogger())
accountant = New(store)
})
Describe("Getting Metrics", func() {
Context("when the store is empty", func() {
It("should return a map of 0s", func() {
metrics, err := accountant.GetMetrics()
Ω(err).ShouldNot(HaveOccurred())
Ω(metrics).Should(Equal(map[string]float64{
"StartCrashed": 0,
"StartMissing": 0,
"StartEvacuating": 0,
"StopExtra": 0,
"StopDuplicate": 0,
"StopEvacuationComplete": 0,
var _ = Describe("Analyzer", func() {
var (
analyzer *Analyzer
storeAdapter *fakestoreadapter.FakeStoreAdapter
store storepackage.Store
clock *fakeclock.FakeClock
dea appfixture.DeaFixture
app appfixture.AppFixture
)
conf, _ := config.DefaultConfig()
BeforeEach(func() {
storeAdapter = fakestoreadapter.New()
store = storepackage.NewStore(conf, storeAdapter, fakelogger.NewFakeLogger())
clock = fakeclock.NewFakeClock(time.Unix(1000, 0))
dea = appfixture.NewDeaFixture()
app = dea.GetApp(0)
store.BumpActualFreshness(time.Unix(100, 0))
store.BumpDesiredFreshness(time.Unix(100, 0))
analyzer = New(store, clock, fakelogger.NewFakeLogger(), conf)
})
startMessages := func() []models.PendingStartMessage {
messages, _ := store.GetPendingStartMessages()
messagesArr := []models.PendingStartMessage{}
BeforeEach(func() {
var err error
conf, err = config.DefaultConfig()
Ω(err).ShouldNot(HaveOccured())
timeProvider = &faketimeprovider.FakeTimeProvider{
TimeToProvide: time.Now(),
}
app = NewApp()
anotherApp = NewApp()
store = fakestore.NewFakeStore()
messageBus = fake_cfmessagebus.NewFakeMessageBus()
logger = fakelogger.NewFakeLogger()
listener = New(conf, messageBus, store, timeProvider, logger)
listener.Start()
})
It("should subscribe to the dea.heartbeat subject", func() {
Ω(messageBus.Subscriptions).Should(HaveKey("dea.heartbeat"))
Ω(messageBus.Subscriptions["dea.heartbeat"]).Should(HaveLen(1))
})
Context("When it receives a simple heartbeat over the message bus", func() {
BeforeEach(func() {
messageBus.Subscriptions["dea.heartbeat"][0].Callback(app.Heartbeat(1, 17).ToJson())
})
var (
evacuator *Evacuator
messageBus *fakeyagnats.FakeNATSConn
storeAdapter *fakestoreadapter.FakeStoreAdapter
timeProvider *faketimeprovider.FakeTimeProvider
store storepackage.Store
app appfixture.AppFixture
)
conf, _ := config.DefaultConfig()
BeforeEach(func() {
storeAdapter = fakestoreadapter.New()
messageBus = fakeyagnats.Connect()
store = storepackage.NewStore(conf, storeAdapter, fakelogger.NewFakeLogger())
timeProvider = &faketimeprovider.FakeTimeProvider{
TimeToProvide: time.Unix(100, 0),
}
app = appfixture.NewAppFixture()
evacuator = New(messageBus, store, timeProvider, conf, fakelogger.NewFakeLogger())
evacuator.Listen()
})
It("should be listening on the message bus for droplet.exited", func() {
Ω(messageBus.SubjectCallbacks("droplet.exited")).ShouldNot(BeNil())
})
Context("when droplet.exited is received", func() {
makeRequest := func(request string) (response string) {
replyToGuid := models.Guid()
messageBus.Subscriptions["app.state"][0].Callback(&yagnats.Message{
Payload: []byte(request),
ReplyTo: replyToGuid,
})
Ω(messageBus.PublishedMessages[replyToGuid]).Should(HaveLen(1))
return string(messageBus.PublishedMessages[replyToGuid][0].Payload)
}
BeforeEach(func() {
messageBus = fakeyagnats.New()
storeAdapter = fakestoreadapter.New()
store = storepackage.NewStore(conf, storeAdapter, fakelogger.NewFakeLogger())
timeProvider = &faketimeprovider.FakeTimeProvider{
TimeToProvide: time.Unix(100, 0),
}
server := apiserver.New(messageBus, store, timeProvider, fakelogger.NewFakeLogger())
server.Listen()
})
It("should subscribe on a queue", func() {
Ω(messageBus.Subscriptions["app.state"]).ShouldNot(BeEmpty())
subscription := messageBus.Subscriptions["app.state"][0]
Ω(subscription.Queue).Should(Equal("hm9000"))
})
Context("responding to app.state", func() {
"github.com/pivotal-golang/clock/fakeclock"
)
var _ = Describe("Metrics Server", func() {
var (
store storepackage.Store
storeAdapter *fakestoreadapter.FakeStoreAdapter
timeProvider *fakeclock.FakeClock
metricsServer *MetricsServer
metricsAccountant *fakemetricsaccountant.FakeMetricsAccountant
)
BeforeEach(func() {
conf, _ := config.DefaultConfig()
storeAdapter = fakestoreadapter.New()
store = storepackage.NewStore(conf, storeAdapter, fakelogger.NewFakeLogger())
timeProvider = fakeclock.NewFakeClock(time.Unix(100, 0))
metricsAccountant = &fakemetricsaccountant.FakeMetricsAccountant{}
metricsServer = New(nil, nil, metricsAccountant, fakelogger.NewFakeLogger(), store, timeProvider, conf)
})
Describe("message metrics", func() {
BeforeEach(func() {
metricsAccountant.GetMetricsReturns(map[string]float64{
"foo": 1,
"bar": 2,
}, nil)
})
defer close(done)
go func() {
released := <-adapter.ReleaseNodeChannel
released <- true
}()
callTimes := []float64{}
startTime := time.Now()
i := 0
err := Daemonize("Daemon Test", func() error {
callTimes = append(callTimes, time.Since(startTime).Seconds())
i += 1
time.Sleep(time.Duration(i*10) * time.Millisecond)
return nil
}, 20*time.Millisecond, 35*time.Millisecond, fakelogger.NewFakeLogger(), adapter)
Ω(callTimes).Should(HaveLen(4))
Ω(callTimes[0]).Should(BeNumerically("~", 0, 0.005), "The first call happens immediately and sleeps for 10 seconds")
Ω(callTimes[1]).Should(BeNumerically("~", 0.02, 0.005), "The second call happens after PERIOD and sleeps for 20 seconds")
Ω(callTimes[2]).Should(BeNumerically("~", 0.04, 0.005), "The third call happens after PERIOD and sleeps for 30 seconds")
Ω(callTimes[3]).Should(BeNumerically("~", 0.07, 0.005), "The fourth call waits for function to finish and happens after 30 seconds (> PERIOD) and sleeps for 40 seconds which...")
Ω(err).Should(Equal(errors.New("Daemon timed out. Aborting!")), "..causes a timeout")
})
It("acquires the lock once", func() {
go Daemonize(
"ComponentName",
func() error { return nil },
20*time.Millisecond,
BeforeEach(func() {
var err error
conf, err = config.DefaultConfig()
Ω(err).ShouldNot(HaveOccurred())
metricsAccountant = fakemetricsaccountant.New()
resultChan = make(chan DesiredStateFetcherResult, 1)
timeProvider = &faketimeprovider.FakeTimeProvider{
TimeToProvide: time.Unix(100, 0),
}
httpClient = fakehttpclient.NewFakeHttpClient()
storeAdapter = fakestoreadapter.New()
store = storepackage.NewStore(conf, storeAdapter, fakelogger.NewFakeLogger())
fetcher = New(conf, store, metricsAccountant, httpClient, timeProvider, fakelogger.NewFakeLogger())
fetcher.Fetch(resultChan)
})
Describe("Fetching with an invalid URL", func() {
BeforeEach(func() {
conf.CCBaseURL = "http://example.com/#%ZZ"
fetcher = New(conf, store, metricsAccountant, httpClient, timeProvider, fakelogger.NewFakeLogger())
fetcher.Fetch(resultChan)
})
It("should send an error down the result channel", func(done Done) {
result := <-resultChan
Ω(result.Success).Should(BeFalse())
metricsAccountant *fakemetricsaccountant.FakeMetricsAccountant
)
BeforeEach(func() {
messageBus = fakeyagnats.New()
dea = appfixture.NewDeaFixture()
app = dea.GetApp(0)
conf, _ = config.DefaultConfig()
metricsAccountant = fakemetricsaccountant.New()
timeProvider = &faketimeprovider.FakeTimeProvider{
TimeToProvide: time.Unix(int64(10+conf.ActualFreshnessTTL()), 0),
}
storeAdapter = fakestoreadapter.New()
store = storepackage.NewStore(conf, storeAdapter, fakelogger.NewFakeLogger())
sender = New(store, metricsAccountant, conf, messageBus, timeProvider, fakelogger.NewFakeLogger())
store.BumpActualFreshness(time.Unix(10, 0))
store.BumpDesiredFreshness(time.Unix(10, 0))
})
Context("when the sender fails to pull messages out of the start queue", func() {
BeforeEach(func() {
storeAdapter.ListErrInjector = fakestoreadapter.NewFakeStoreAdapterErrorInjector("start", errors.New("oops"))
})
It("should return an error and not send any messages", func() {
err := sender.Send()
Ω(err).Should(Equal(errors.New("oops")))
Ω(messageBus.PublishedMessages).Should(BeEmpty())
})
BeforeEach(func() {
storeAdapter = fakestoreadapter.New()
resultChan = make(chan desiredstatefetcher.DesiredStateFetcherResult, 1)
a1 = appfixture.NewAppFixture()
a2 = appfixture.NewAppFixture()
a3 = appfixture.NewAppFixture()
stateServer.SetDesiredState([]models.DesiredAppState{
a1.DesiredState(1),
a2.DesiredState(1),
a3.DesiredState(1),
})
conf, _ = config.DefaultConfig()
store = storepackage.NewStore(conf, storeAdapter, fakelogger.NewFakeLogger())
fetcher = desiredstatefetcher.New(conf, store, &fakemetricsaccountant.FakeMetricsAccountant{}, httpclient.NewHttpClient(conf.SkipSSLVerification, conf.FetcherNetworkTimeout()), clock.NewClock(), fakelogger.NewFakeLogger())
fetcher.Fetch(resultChan)
})
It("requests for the first set of data from the CC and stores the response", func() {
var desired map[string]models.DesiredAppState
var err error
Eventually(func() interface{} {
desired, err = store.GetDesiredState()
return desired
}, 1, 0.1).ShouldNot(BeEmpty())
Ω(desired).Should(HaveKey(a1.AppGuid + "," + a1.AppVersion))
Ω(desired).Should(HaveKey(a2.AppGuid + "," + a2.AppVersion))
dea appfixture.DeaFixture
app1 appfixture.AppFixture
app2 appfixture.AppFixture
app3 appfixture.AppFixture
app4 appfixture.AppFixture
crashCount []models.CrashCount
)
conf, _ = config.DefaultConfig()
BeforeEach(func() {
storeAdapter = etcdstoreadapter.NewETCDStoreAdapter(etcdRunner.NodeURLS(), workerpool.NewWorkerPool(conf.StoreMaxConcurrentRequests))
err := storeAdapter.Connect()
Ω(err).ShouldNot(HaveOccurred())
store = NewStore(conf, storeAdapter, fakelogger.NewFakeLogger())
dea = appfixture.NewDeaFixture()
app1 = dea.GetApp(0)
app2 = dea.GetApp(1)
app3 = dea.GetApp(2)
app4 = dea.GetApp(3)
actualState := []models.InstanceHeartbeat{
app1.InstanceAtIndex(0).Heartbeat(),
app1.InstanceAtIndex(1).Heartbeat(),
app1.InstanceAtIndex(2).Heartbeat(),
app2.InstanceAtIndex(0).Heartbeat(),
}
desiredState := []models.DesiredAppState{
BeforeEach(func() {
storeAdapter = fakestoreadapter.New()
resultChan = make(chan desiredstatefetcher.DesiredStateFetcherResult, 1)
a1 = appfixture.NewAppFixture()
a2 = appfixture.NewAppFixture()
a3 = appfixture.NewAppFixture()
stateServer.SetDesiredState([]models.DesiredAppState{
a1.DesiredState(1),
a2.DesiredState(1),
a3.DesiredState(1),
})
conf, _ = config.DefaultConfig()
store = storepackage.NewStore(conf, storeAdapter, fakelogger.NewFakeLogger())
fetcher = desiredstatefetcher.New(conf, store, fakemetricsaccountant.New(), httpclient.NewHttpClient(conf.SkipSSLVerification, conf.FetcherNetworkTimeout()), &timeprovider.RealTimeProvider{}, fakelogger.NewFakeLogger())
fetcher.Fetch(resultChan)
})
It("requests for the first set of data from the CC and stores the response", func() {
var desired map[string]models.DesiredAppState
var err error
Eventually(func() interface{} {
desired, err = store.GetDesiredState()
return desired
}, 1, 0.1).ShouldNot(BeEmpty())
Ω(desired).Should(HaveKey(a1.AppGuid + "," + a1.AppVersion))
Ω(desired).Should(HaveKey(a2.AppGuid + "," + a2.AppVersion))