Example #1
0
	Describe("The steady state", func() {
		Context("When there are no desired or running apps", func() {
			It("should not send any start or stop messages", func() {
				err := analyzer.Analyze()
				Ω(err).ShouldNot(HaveOccurred())
				Ω(startMessages()).Should(BeEmpty())
				Ω(stopMessages()).Should(BeEmpty())
			})
		})

		Context("When the desired number of instances and the running number of instances match", func() {
			BeforeEach(func() {
				desired := app.DesiredState(3)
				desired.State = models.AppStateStarted
				store.SyncDesiredState(
					desired,
				)
				store.SyncHeartbeats(app.Heartbeat(3))
			})

			It("should not send any start or stop messages", func() {
				err := analyzer.Analyze()
				Ω(err).ShouldNot(HaveOccurred())
				Ω(startMessages()).Should(BeEmpty())
				Ω(stopMessages()).Should(BeEmpty())
			})
		})
	})

	Describe("Starting missing instances", func() {
		Context("where an app has desired instances", func() {
				}
				crashCount := models.CrashCount{
					AppGuid:       app.AppGuid,
					AppVersion:    app.AppVersion,
					InstanceIndex: 1,
					CrashCount:    2,
				}
				expectedApp = models.NewApp(
					app.AppGuid,
					app.AppVersion,
					app.DesiredState(3),
					instanceHeartbeats,
					map[int]models.CrashCount{1: crashCount},
				)

				store.SyncDesiredState(app.DesiredState(3))
				store.SyncHeartbeats(app.Heartbeat(3))
				store.SaveCrashCounts(crashCount)
				validRequestPayload = fmt.Sprintf(`{"droplet":"%s","version":"%s"}`, app.AppGuid, app.AppVersion)
			})

			Context("when the store is fresh", func() {
				BeforeEach(func() {
					store.BumpDesiredFreshness(time.Unix(0, 0))
					store.BumpActualFreshness(time.Unix(0, 0))
				})

				Context("when the app query parameters do not correspond to an existing app", func() {
					It("should respond with an empty hash", func() {
						response := makeRequest(`{"droplet":"elephant","version":"pink-flamingo"}`)
						Ω(response).Should(Equal("{}"))
		Context("when a response with desired state is received", func() {
			var (
				a1                appfixture.AppFixture
				a2                appfixture.AppFixture
				stoppedApp        appfixture.AppFixture
				pendingStagingApp appfixture.AppFixture
				failedToStageApp  appfixture.AppFixture
				deletedApp        appfixture.AppFixture

				pendingStagingDesiredState models.DesiredAppState
			)

			BeforeEach(func() {
				deletedApp = appfixture.NewAppFixture()
				store.SyncDesiredState(deletedApp.DesiredState(1))

				a1 = appfixture.NewAppFixture()
				a2 = appfixture.NewAppFixture()

				stoppedApp = appfixture.NewAppFixture()
				stoppedDesiredState := stoppedApp.DesiredState(1)
				stoppedDesiredState.State = models.AppStateStopped

				pendingStagingApp = appfixture.NewAppFixture()
				pendingStagingDesiredState = pendingStagingApp.DesiredState(1)
				pendingStagingDesiredState.PackageState = models.AppPackageStatePending

				failedToStageApp = appfixture.NewAppFixture()
				failedStagingDesiredState := failedToStageApp.DesiredState(1)
				failedStagingDesiredState.PackageState = models.AppPackageStateFailed
Example #4
0
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfUndesiredRunningApps", Value: -1}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfRunningInstances", Value: -1}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfMissingIndices", Value: -1}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfCrashedInstances", Value: -1}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfCrashedIndices", Value: -1}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfDesiredApps", Value: -1}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfDesiredInstances", Value: -1}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfDesiredAppsPendingStaging", Value: -1}))
				})
			})

			Context("When a desired app is pending staging", func() {
				BeforeEach(func() {
					desired := a.DesiredState(3)
					desired.PackageState = models.AppPackageStatePending
					store.SyncDesiredState(desired)
					store.SyncHeartbeats(a.Heartbeat(1))
				})

				It("should have the correct stats", func() {
					context := metricsServer.Emit()
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfAppsWithAllInstancesReporting", Value: 0}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfAppsWithMissingInstances", Value: 0}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfUndesiredRunningApps", Value: 0}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfRunningInstances", Value: 1}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfMissingIndices", Value: 0}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfCrashedInstances", Value: 0}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfCrashedIndices", Value: 0}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfDesiredApps", Value: 0}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfDesiredInstances", Value: 0}))
					Ω(context.Metrics).Should(ContainElement(instrumentation.Metric{Name: "NumberOfDesiredAppsPendingStaging", Value: 1}))
		It("should not send any messages", func() {
			err := sender.Send()
			Ω(err).ShouldNot(HaveOccurred())
			Ω(messageBus.PublishedMessages).Should(BeEmpty())
		})
	})

	Context("when there are start messages", func() {
		var keepAliveTime int
		var sentOn int64
		var err error
		var pendingMessage models.PendingStartMessage
		var storeSetErrInjector *fakestoreadapter.FakeStoreAdapterErrorInjector

		JustBeforeEach(func() {
			store.SyncDesiredState(app.DesiredState(1))
			pendingMessage = models.NewPendingStartMessage(time.Unix(100, 0), 30, keepAliveTime, app.AppGuid, app.AppVersion, 0, 1.0, models.PendingStartMessageReasonInvalid)
			pendingMessage.SentOn = sentOn
			store.SavePendingStartMessages(
				pendingMessage,
			)
			storeAdapter.SetErrInjector = storeSetErrInjector
			err = sender.Send()
		})

		BeforeEach(func() {
			keepAliveTime = 0
			sentOn = 0
			err = nil
			storeSetErrInjector = nil
		})