func newSignalableFileLogger(logPath string, level boshlog.LogLevel) boshlog.Logger {
	// Log file logger errors to the STDERR logger
	logger := boshlog.NewLogger(boshlog.LevelError)
	fileSystem := boshsys.NewOsFileSystem(logger)

	// log file will be closed by process exit
	// log file readable by all
	logfileLogger, _, err := boshlogfile.New(level, logPath, boshlogfile.DefaultLogFileMode, fileSystem)
	if err != nil {
		logger := boshlog.NewLogger(boshlog.LevelError)
		ui := biui.NewConsoleUI(logger)
		fail(err, ui, logger, nil)
	}
	return newSignalableLogger(logfileLogger)
}

func newLogger() boshlog.Logger {
	logLevelString := os.Getenv("BOSH_INIT_LOG_LEVEL")
	level := boshlog.LevelNone
	if logLevelString != "" {
		var err error
		level, err = boshlog.Levelify(logLevelString)
		if err != nil {
			err = bosherr.WrapError(err, "Invalid BOSH_INIT_LOG_LEVEL value")
			logger := boshlog.NewLogger(boshlog.LevelError)
			ui := biui.NewConsoleUI(logger)
			fail(err, ui, logger, nil)
		}
	}

	logPath := os.Getenv("BOSH_INIT_LOG_PATH")
	if logPath != "" {
		return newSignalableFileLogger(logPath, level)
	}

	return newSignalableLogger(boshlog.NewLogger(level))
}

func describeDummyPlatform() {
	var (
		platform           Platform
		collector          boshstats.Collector
		fs                 boshsys.FileSystem
		cmdRunner          boshsys.CmdRunner
		dirProvider        boshdirs.Provider
		devicePathResolver boshdpresolv.DevicePathResolver
		logger             boshlog.Logger
	)

	BeforeEach(func() {
		collector = &fakestats.FakeCollector{}
		fs = fakesys.NewFakeFileSystem()
		cmdRunner = fakesys.NewFakeCmdRunner()
		dirProvider = boshdirs.NewProvider("/fake-dir")
		devicePathResolver = fakedpresolv.NewFakeDevicePathResolver()
		logger = boshlog.NewLogger(boshlog.LevelNone)
	})

	JustBeforeEach(func() {
		platform = NewDummyPlatform(
			collector,
			fs,
			cmdRunner,
			dirProvider,
			devicePathResolver,
			logger,
		)
	})

	Describe("GetDefaultNetwork", func() {
		It("returns the contents of dummy-defaults-network-settings.json since that's what the dummy cpi writes", func() {
			settingsFilePath := "/fake-dir/bosh/dummy-default-network-settings.json"
			fs.WriteFileString(settingsFilePath, `{"IP": "1.2.3.4"}`)

			network, err := platform.GetDefaultNetwork()
			Expect(err).NotTo(HaveOccurred())

			Expect(network.IP).To(Equal("1.2.3.4"))
		})
	})

	Describe("GetCertManager", func() {
		It("returs a dummy cert manager", func() {
			certManager := platform.GetCertManager()

			Expect(certManager.UpdateCertificates("")).Should(BeNil())
		})
	})
}

func describeHTTPMetadataService() {
	var (
		dnsResolver     *fakeinf.FakeDNSResolver
		platform        *fakeplat.FakePlatform
		logger          boshlog.Logger
		metadataService MetadataService
	)

	BeforeEach(func() {
		dnsResolver = &fakeinf.FakeDNSResolver{}
		platform = fakeplat.NewFakePlatform()
		logger = boshlog.NewLogger(boshlog.LevelNone)
		metadataService = NewHTTPMetadataService("fake-metadata-host", dnsResolver, platform, logger)
	})

	ItEnsuresMinimalNetworkSetup := func(subject func() (string, error)) {
		Context("when no networks are configured", func() {
			BeforeEach(func() {
				platform.GetConfiguredNetworkInterfacesInterfaces = []string{}
			})

			It("sets up DHCP network", func() {
				_, err := subject()
				Expect(err).ToNot(HaveOccurred())

				Expect(platform.SetupNetworkingCalled).To(BeTrue())
				Expect(platform.SetupNetworkingNetworks).To(Equal(boshsettings.Networks{
					"eth0": boshsettings.Network{
						Type: "dynamic",
					},
				}))
			})

			Context("when setting up DHCP fails", func() {
				BeforeEach(func() {
					platform.SetupNetworkingErr = errors.New("fake-network-error")
				})

				It("returns an error", func() {
					_, err := subject()
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("fake-network-error"))
				})
			})
		})
	}

	Describe("IsAvailable", func() {
		It("returns true", func() {
			Expect(metadataService.IsAvailable()).To(BeTrue())
		})
	})

	Describe("GetPublicKey", func() {
		var (
			ts *httptest.Server
		)

		BeforeEach(func() {
			handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
				GinkgoRecover()

				Expect(r.Method).To(Equal("GET"))
				Expect(r.URL.Path).To(Equal("/latest/meta-data/public-keys/0/openssh-key"))

				w.Write([]byte("fake-public-key"))
			})

			ts = httptest.NewServer(handler)

			metadataService = NewHTTPMetadataService(ts.URL, dnsResolver, platform, logger)
		})

		AfterEach(func() {
			ts.Close()
		})

		ItEnsuresMinimalNetworkSetup(func() (string, error) {
			return metadataService.GetPublicKey()
		})

		It("returns fetched public key", func() {
			publicKey, err := metadataService.GetPublicKey()
			Expect(err).NotTo(HaveOccurred())
			Expect(publicKey).To(Equal("fake-public-key"))
		})
	})

	Describe("GetInstanceID", func() {
		var (
			ts *httptest.Server
		)

		BeforeEach(func() {
			handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
				GinkgoRecover()

				Expect(r.Method).To(Equal("GET"))
				Expect(r.URL.Path).To(Equal("/latest/meta-data/instance-id"))

//.........这里部分代码省略.........

func describeUbuntuNetManager() {
	var (
		fs                            *fakesys.FakeFileSystem
		cmdRunner                     *fakesys.FakeCmdRunner
		ipResolver                    *fakeip.FakeResolver
		addressBroadcaster            *fakearp.FakeAddressBroadcaster
		netManager                    UbuntuNetManager
		interfaceConfigurationCreator InterfaceConfigurationCreator
	)

	writeNetworkDevice := func(iface string, macAddress string, isPhysical bool) string {
		interfacePath := fmt.Sprintf("/sys/class/net/%s", iface)
		fs.WriteFile(interfacePath, []byte{})
		if isPhysical {
			fs.WriteFile(fmt.Sprintf("/sys/class/net/%s/device", iface), []byte{})
		}
		fs.WriteFileString(fmt.Sprintf("/sys/class/net/%s/address", iface), fmt.Sprintf("%s\n", macAddress))

		return interfacePath
	}

	stubInterfacesWithVirtual := func(physicalInterfaces map[string]boshsettings.Network, virtualInterfaces []string) {
		interfacePaths := []string{}

		for iface, networkSettings := range physicalInterfaces {
			interfacePaths = append(interfacePaths, writeNetworkDevice(iface, networkSettings.Mac, true))
		}

		for _, iface := range virtualInterfaces {
			interfacePaths = append(interfacePaths, writeNetworkDevice(iface, "virtual", false))
		}

		fs.SetGlob("/sys/class/net/*", interfacePaths)
	}

	stubInterfaces := func(physicalInterfaces map[string]boshsettings.Network) {
		stubInterfacesWithVirtual(physicalInterfaces, nil)
	}

	BeforeEach(func() {
		fs = fakesys.NewFakeFileSystem()
		cmdRunner = fakesys.NewFakeCmdRunner()
		ipResolver = &fakeip.FakeResolver{}
		logger := boshlog.NewLogger(boshlog.LevelNone)
		interfaceConfigurationCreator = NewInterfaceConfigurationCreator(logger)
		addressBroadcaster = &fakearp.FakeAddressBroadcaster{}
		netManager = NewUbuntuNetManager(
			fs,
			cmdRunner,
			ipResolver,
			interfaceConfigurationCreator,
			addressBroadcaster,
			logger,
		).(UbuntuNetManager)
	})

	Describe("ComputeNetworkConfig", func() {
		Context("when there is one manual network and neither is marked as default for DNS", func() {
			It("should use the manual network for DNS", func() {
				networks := boshsettings.Networks{
					"manual": factory.Network{DNS: &[]string{"8.8.8.8"}}.Build(),
				}
				stubInterfaces(networks)
				_, _, dnsServers, err := netManager.ComputeNetworkConfig(networks)
				Expect(err).ToNot(HaveOccurred())
				Expect(dnsServers).To(Equal([]string{"8.8.8.8"}))
			})
		})

		Context("when there is a vip network and a manual network and neither is marked as default for DNS", func() {
			It("should use the manual network for DNS", func() {
				networks := boshsettings.Networks{
					"vip":    boshsettings.Network{Type: "vip"},
					"manual": factory.Network{Type: "manual", DNS: &[]string{"8.8.8.8"}}.Build(),
				}
				stubInterfaces(networks)
				_, _, dnsServers, err := netManager.ComputeNetworkConfig(networks)
				Expect(err).ToNot(HaveOccurred())
				Expect(dnsServers).To(Equal([]string{"8.8.8.8"}))
			})
		})
		Context("when there is a vip network and a manual network and the manual network is marked as default for DNS", func() {
			It("should use the manual network for DNS", func() {
				networks := boshsettings.Networks{
					"vip":    boshsettings.Network{Type: "vip"},
					"manual": factory.Network{Type: "manual", DNS: &[]string{"8.8.8.8"}, Default: []string{"dns"}}.Build(),
				}
				stubInterfaces(networks)
				_, _, dnsServers, err := netManager.ComputeNetworkConfig(networks)
				Expect(err).ToNot(HaveOccurred())
				Expect(dnsServers).To(Equal([]string{"8.8.8.8"}))
			})
		})

		Context("when specified more than one DNS", func() {
			It("extracts all DNS servers from the network configured as default DNS", func() {
				networks := boshsettings.Networks{
					"default": factory.Network{
						IP:      "10.10.0.32",
						Netmask: "255.255.255.0",
//.........这里部分代码省略.........

func init() {
	Describe("settingsService", func() {
		var (
			fs                         *fakesys.FakeFileSystem
			fakeDefaultNetworkResolver *fakenet.FakeDefaultNetworkResolver
			fakeSettingsSource         *fakes.FakeSettingsSource
		)

		BeforeEach(func() {
			fs = fakesys.NewFakeFileSystem()
			fakeDefaultNetworkResolver = &fakenet.FakeDefaultNetworkResolver{}
			fakeSettingsSource = &fakes.FakeSettingsSource{}
		})

		buildService := func() (Service, *fakesys.FakeFileSystem) {
			logger := boshlog.NewLogger(boshlog.LevelNone)
			service := NewService(fs, "/setting/path.json", fakeSettingsSource, fakeDefaultNetworkResolver, logger)
			return service, fs
		}

		Describe("LoadSettings", func() {
			var (
				fetchedSettings Settings
				fetcherFuncErr  error
				service         Service
			)

			BeforeEach(func() {
				fetchedSettings = Settings{}
				fetcherFuncErr = nil
			})

			JustBeforeEach(func() {
				fakeSettingsSource.SettingsValue = fetchedSettings
				fakeSettingsSource.SettingsErr = fetcherFuncErr
				service, fs = buildService()
			})

			Context("when settings fetcher succeeds fetching settings", func() {
				BeforeEach(func() {
					fetchedSettings = Settings{AgentID: "some-new-agent-id"}
				})

				Context("when settings contain at most one dynamic network", func() {
					BeforeEach(func() {
						fetchedSettings.Networks = Networks{
							"fake-net-1": Network{Type: NetworkTypeDynamic},
						}
					})

					It("updates the service with settings from the fetcher", func() {
						err := service.LoadSettings()
						Expect(err).NotTo(HaveOccurred())
						Expect(service.GetSettings().AgentID).To(Equal("some-new-agent-id"))
					})

					It("persists settings to the settings file", func() {
						err := service.LoadSettings()
						Expect(err).NotTo(HaveOccurred())

						json, err := json.Marshal(fetchedSettings)
						Expect(err).NotTo(HaveOccurred())

						fileContent, err := fs.ReadFile("/setting/path.json")
						Expect(err).NotTo(HaveOccurred())
						Expect(fileContent).To(Equal(json))
					})

					It("returns any error from writing to the setting file", func() {
						fs.WriteFileError = errors.New("fs-write-file-error")

						err := service.LoadSettings()
						Expect(err).To(HaveOccurred())
						Expect(err.Error()).To(ContainSubstring("fs-write-file-error"))
					})
				})
			})

			Context("when settings fetcher fails fetching settings", func() {
				BeforeEach(func() {
					fetcherFuncErr = errors.New("fake-fetch-error")
				})

				Context("when a settings file exists", func() {
					Context("when settings contain at most one dynamic network", func() {
						BeforeEach(func() {
							fs.WriteFile("/setting/path.json", []byte(`{
								"agent_id":"some-agent-id",
								"networks": {"fake-net-1": {"type": "dynamic"}}
							}`))

							fakeDefaultNetworkResolver.GetDefaultNetworkNetwork = Network{
								IP:      "fake-resolved-ip",
								Netmask: "fake-resolved-netmask",
								Gateway: "fake-resolved-gateway",
							}
						})

						It("returns settings from the settings file with resolved network", func() {
							err := service.LoadSettings()
//.........这里部分代码省略.........

func init() {
	Describe("execCmdRunner", func() {
		var (
			runner CmdRunner
		)

		BeforeEach(func() {
			runner = NewExecCmdRunner(boshlog.NewLogger(boshlog.LevelNone))
		})

		Describe("RunComplexCommand", func() {
			It("run complex command with working directory", func() {
				cmd := Command{
					Name:       "ls",
					Args:       []string{"-l"},
					WorkingDir: ".",
				}
				stdout, stderr, status, err := runner.RunComplexCommand(cmd)
				Expect(err).ToNot(HaveOccurred())
				Expect(stdout).To(ContainSubstring("exec_cmd_runner_fixtures"))
				Expect(stdout).To(ContainSubstring("total"))
				Expect(stderr).To(BeEmpty())
				Expect(status).To(Equal(0))
			})

			It("run complex command with env", func() {
				cmd := Command{
					Name: "env",
					Env: map[string]string{
						"FOO": "BAR",
					},
				}
				stdout, stderr, status, err := runner.RunComplexCommand(cmd)
				Expect(err).ToNot(HaveOccurred())
				Expect(stdout).To(ContainSubstring("FOO=BAR"))
				Expect(stdout).To(ContainSubstring("PATH="))
				Expect(stderr).To(BeEmpty())
				Expect(status).To(Equal(0))
			})

			It("runs complex command with specific env", func() {
				cmd := Command{
					Name: "env",
					Env: map[string]string{
						"FOO": "BAR",
					},
					UseIsolatedEnv: true,
				}
				stdout, stderr, status, err := runner.RunComplexCommand(cmd)
				Expect(err).ToNot(HaveOccurred())
				Expect(stdout).To(ContainSubstring("FOO=BAR"))
				Expect(stdout).ToNot(ContainSubstring("PATH="))
				Expect(stderr).To(BeEmpty())
				Expect(status).To(Equal(0))
			})

			It("run complex command with stdin", func() {
				input := "This is STDIN\nWith another line."
				cmd := Command{
					Name:  "cat",
					Args:  []string{"/dev/stdin"},
					Stdin: strings.NewReader(input),
				}
				stdout, stderr, status, err := runner.RunComplexCommand(cmd)
				Expect(err).ToNot(HaveOccurred())
				Expect(stdout).To(Equal(input))
				Expect(stderr).To(BeEmpty())
				Expect(status).To(Equal(0))
			})

			It("prints stdout/stderr to provided I/O object", func() {
				fs := fakesys.NewFakeFileSystem()
				stdoutFile, err := fs.OpenFile("/fake-stdout-path", os.O_RDWR, os.FileMode(0644))
				Expect(err).ToNot(HaveOccurred())

				stderrFile, err := fs.OpenFile("/fake-stderr-path", os.O_RDWR, os.FileMode(0644))
				Expect(err).ToNot(HaveOccurred())

				cmd := Command{
					Name:   "bash",
					Args:   []string{"-c", "echo fake-out >&1; echo fake-err >&2"},
					Stdout: stdoutFile,
					Stderr: stderrFile,
				}

				stdout, stderr, status, err := runner.RunComplexCommand(cmd)
				Expect(err).ToNot(HaveOccurred())

				Expect(stdout).To(BeEmpty())
				Expect(stderr).To(BeEmpty())
				Expect(status).To(Equal(0))

				stdoutContents := make([]byte, 1024)
				_, err = stdoutFile.Read(stdoutContents)
				Expect(err).ToNot(HaveOccurred())
				Expect(string(stdoutContents)).To(ContainSubstring("fake-out"))

				stderrContents := make([]byte, 1024)
				_, err = stderrFile.Read(stderrContents)
				Expect(err).ToNot(HaveOccurred())
//.........这里部分代码省略.........

	return
}

var _ = Describe("SignalableLogger", func() {
	var (
		signalChannel chan os.Signal
	)
	BeforeEach(func() {
		signalChannel = make(chan os.Signal, 1)
	})

	Describe("Toggling forced debug", func() {
		Describe("when the log level is error", func() {
			It("outputs at debug level", func() {
				stdout, stderr := captureOutputs(func() {
					logger, doneChannel := bilog.NewSignalableLogger(boshlog.NewLogger(boshlog.LevelError), signalChannel)

					signalChannel <- syscall.SIGHUP
					<-doneChannel

					logger.Debug("TOGGLED_DEBUG", "some debug log")
					logger.Info("TOGGLED_INFO", "some info log")
					logger.Warn("TOGGLED_WARN", "some warn log")
					logger.Error("TOGGLED_ERROR", "some error log")
				})

				Expect(stdout).To(ContainSubstring("TOGGLED_DEBUG"))
				Expect(stdout).To(ContainSubstring("TOGGLED_INFO"))
				Expect(stderr).To(ContainSubstring("TOGGLED_WARN"))
				Expect(stderr).To(ContainSubstring("TOGGLED_ERROR"))
			})

//.........这里部分代码省略.........
				testTempDir string
			)
			BeforeEach(func() {
				osFs, _ = createOsFs()
				var err error
				testTempDir, err = ioutil.TempDir("", "os_filesystem_test")
				Expect(err).ToNot(HaveOccurred())
			})

			AfterEach(func() {
				os.Remove(testTempDir)
			})

			Context("a temp root is set", func() {
				BeforeEach(func() {
					osFs.ChangeTempRoot(testTempDir)
				})

				It("creates temp files under that root", func() {
					file, err := osFs.TempFile("some-file-prefix")
					Expect(err).ToNot(HaveOccurred())
					Expect(file.Name()).To(HavePrefix(filepath.Join(testTempDir, "some-file-prefix")))
				})

				It("creates temp directories under that root", func() {
					dirName, err := osFs.TempDir("some-dir-prefix")
					Expect(err).ToNot(HaveOccurred())
					Expect(dirName).To(HavePrefix(filepath.Join(testTempDir, "some-dir-prefix")))
				})
			})

			Context("no temp root is set and was initialized as a strict temp root", func() {
				BeforeEach(func() {
					osFs = NewOsFileSystemWithStrictTempRoot(boshlog.NewLogger(boshlog.LevelNone))
				})

				It("should eror", func() {
					_, err := osFs.TempFile("some-prefix")
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("ChangeTempRoot"))

					_, err = osFs.TempDir("some-prefix")
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("ChangeTempRoot"))
				})
			})
		})

		Describe("CopyFile", func() {
			It("copies file", func() {
				osFs, _ := createOsFs()
				srcPath := "test_assets/test_copy_dir_entries/foo.txt"
				dstFile, err := osFs.TempFile("CopyFileTestFile")
				Expect(err).ToNot(HaveOccurred())
				defer os.Remove(dstFile.Name())

				err = osFs.CopyFile(srcPath, dstFile.Name())

				fooContent, err := osFs.ReadFileString(dstFile.Name())
				Expect(err).ToNot(HaveOccurred())
				Expect(fooContent).To(Equal("foo\n"))
			})

			It("does not leak file descriptors", func() {
				osFs, _ := createOsFs()

	"github.com/cloudfoundry/bosh-init/internal/github.com/cloudfoundry/bosh-utils/logger"
	"github.com/cloudfoundry/bosh-init/internal/github.com/cloudfoundry/bosh-utils/system"
	fakesys "github.com/cloudfoundry/bosh-init/internal/github.com/cloudfoundry/bosh-utils/system/fakes"
)

const cert1 string = `-----BEGIN CERTIFICATE-----
MIIEJDCCAwygAwIBAgIJAO+CqgiJnCgpMA0GCSqGSIb3DQEBBQUAMGkxCzAJBgNV
BAYTAkNBMRMwEQYDVQQIEwpTb21lLVN0YXRlMSEwHwYDVQQKExhJbnRlcm5ldCBX
qokoSBXzJCJTt2P681gyqBDr/hUYzqpoXUsOTRisScbEbaSv8hTiTeFJUMyNQAqn
DtmvI8bXKxU=
-----END CERTIFICATE-----`

var _ = Describe("Certificate Management", func() {
	var log logger.Logger
	BeforeEach(func() {
		log = logger.NewLogger(logger.LevelNone)
	})

	Describe("CertificateSplitting", func() {
		It("splits 2 back-to-back certificates", func() {
			certs := fmt.Sprintf("%s\n%s\n", cert1, cert1)

			result := cert.SplitCerts(certs)
			Expect(result[0]).To(Equal(cert1))
			Expect(result[1]).To(Equal(cert1))
			Expect(len(result)).To(Equal(2))
		})

		It("splits 2 back-to-back certificates without trailing newline", func() {
			certs := fmt.Sprintf("%s\n%s", cert1, cert1)

func rootDesc() {
	var mockCtrl *gomock.Controller

	BeforeEach(func() {
		mockCtrl = gomock.NewController(GinkgoT())
	})

	AfterEach(func() {
		mockCtrl.Finish()
	})

	Describe("Run", func() {
		var (
			command        bicmd.Cmd
			fakeFs         *fakesys.FakeFileSystem
			stdOut         *gbytes.Buffer
			stdErr         *gbytes.Buffer
			userInterface  biui.UI
			sha1Calculator crypto.SHA1Calculator
			manifestSHA1   string

			mockDeployer              *mock_deployment.MockDeployer
			mockInstaller             *mock_install.MockInstaller
			mockInstallerFactory      *mock_install.MockInstallerFactory
			mockReleaseExtractor      *mock_release.MockExtractor
			releaseManager            birel.Manager
			mockRegistryServerManager *mock_registry.MockServerManager
			mockRegistryServer        *mock_registry.MockServer
			mockAgentClient           *mock_agentclient.MockAgentClient
			mockAgentClientFactory    *mock_httpagent.MockAgentClientFactory
			mockCloudFactory          *mock_cloud.MockFactory

			fakeCPIRelease *fakebirel.FakeRelease
			logger         boshlog.Logger

			mockBlobstoreFactory *mock_blobstore.MockFactory
			mockBlobstore        *mock_blobstore.MockBlobstore

			mockVMManagerFactory       *mock_vm.MockManagerFactory
			fakeVMManager              *fakebivm.FakeManager
			fakeStemcellExtractor      *fakebistemcell.FakeExtractor
			mockStemcellManager        *mock_stemcell.MockManager
			fakeStemcellManagerFactory *fakebistemcell.FakeManagerFactory

			fakeReleaseSetParser              *fakebirelsetmanifest.FakeParser
			fakeInstallationParser            *fakebiinstallmanifest.FakeParser
			fakeDeploymentParser              *fakebideplmanifest.FakeParser
			mockLegacyDeploymentStateMigrator *mock_config.MockLegacyDeploymentStateMigrator
			setupDeploymentStateService       biconfig.DeploymentStateService
			fakeDeploymentValidator           *fakebideplval.FakeValidator

			directorID          = "generated-director-uuid"
			fakeUUIDGenerator   *fakeuuid.FakeGenerator
			configUUIDGenerator *fakeuuid.FakeGenerator

			fakeStage *fakebiui.FakeStage

			deploymentManifestPath string
			deploymentStatePath    string
			cpiReleaseTarballPath  string
			stemcellTarballPath    string
			extractedStemcell      bistemcell.ExtractedStemcell

			expectDeploy *gomock.Call

			mbusURL = "http://fake-mbus-user:[email protected]"

			releaseSetManifest     birelsetmanifest.Manifest
			boshDeploymentManifest bideplmanifest.Manifest
			installationManifest   biinstallmanifest.Manifest
			cloud                  bicloud.Cloud

			cloudStemcell bistemcell.CloudStemcell

			expectLegacyMigrate        *gomock.Call
			expectStemcellUpload       *gomock.Call
			expectStemcellDeleteUnused *gomock.Call
			expectCPIReleaseExtract    *gomock.Call
			expectInstall              *gomock.Call
			expectNewCloud             *gomock.Call
		)

		BeforeEach(func() {
			logger = boshlog.NewLogger(boshlog.LevelNone)
			stdOut = gbytes.NewBuffer()
			stdErr = gbytes.NewBuffer()
			userInterface = biui.NewWriterUI(stdOut, stdErr, logger)
			fakeFs = fakesys.NewFakeFileSystem()
			fakeFs.EnableStrictTempRootBehavior()
			deploymentManifestPath = "/path/to/manifest.yml"
			deploymentStatePath = "/path/to/manifest-state.json"
			fakeFs.RegisterOpenFile(deploymentManifestPath, &fakesys.FakeFile{
				Stats: &fakesys.FakeFileStats{FileType: fakesys.FakeFileTypeFile},
			})

			fakeFs.WriteFileString(deploymentManifestPath, "")

			mockDeployer = mock_deployment.NewMockDeployer(mockCtrl)
			mockInstaller = mock_install.NewMockInstaller(mockCtrl)
			mockInstallerFactory = mock_install.NewMockInstallerFactory(mockCtrl)
//.........这里部分代码省略.........

func describeConfigDriveMetadataService() {
	var (
		metadataService MetadataService
		resolver        *fakeinf.FakeDNSResolver
		platform        *fakeplatform.FakePlatform
		logger          boshlog.Logger
	)

	updateMetadata := func(metadataContents MetadataContentsType) {
		metadataJSON, err := json.Marshal(metadataContents)
		Expect(err).ToNot(HaveOccurred())
		platform.SetGetFilesContentsFromDisk("/fake-disk-path-1/fake-metadata-path", metadataJSON, nil)

		Expect(metadataService.IsAvailable()).To(BeTrue())
	}

	updateUserdata := func(userdataContents string) {
		platform.SetGetFilesContentsFromDisk("/fake-disk-path-1/fake-userdata-path", []byte(userdataContents), nil)

		Expect(metadataService.IsAvailable()).To(BeTrue())
	}

	BeforeEach(func() {
		resolver = &fakeinf.FakeDNSResolver{}
		platform = fakeplatform.NewFakePlatform()
		logger = boshlog.NewLogger(boshlog.LevelNone)
		diskPaths := []string{
			"/fake-disk-path-1",
			"/fake-disk-path-2",
		}
		metadataService = NewConfigDriveMetadataService(
			resolver,
			platform,
			diskPaths,
			"fake-metadata-path",
			"fake-userdata-path",
			logger,
		)

		userdataContents := fmt.Sprintf(`{"server":{"name":"fake-server-name"},"registry":{"endpoint":"fake-registry-endpoint"}}`)
		platform.SetGetFilesContentsFromDisk("/fake-disk-path-1/fake-userdata-path", []byte(userdataContents), nil)

		metadata := MetadataContentsType{
			PublicKeys: map[string]PublicKeyType{
				"0": PublicKeyType{
					"openssh-key": "fake-openssh-key",
				},
			},
			InstanceID: "fake-instance-id",
		}
		updateMetadata(metadata)
	})

	Describe("GetNetworks", func() {
		It("returns the network settings", func() {
			userdataContents := `
				{
					"networks": {
						"network_1": {"type": "manual", "ip": "1.2.3.4", "netmask": "2.3.4.5", "gateway": "3.4.5.6", "default": ["dns"], "dns": ["8.8.8.8"], "mac": "fake-mac-address-1"},
						"network_2": {"type": "dynamic", "default": ["dns"], "dns": ["8.8.8.8"], "mac": "fake-mac-address-2"}
					}
				}`
			updateUserdata(userdataContents)

			networks, err := metadataService.GetNetworks()
			Expect(err).ToNot(HaveOccurred())
			Expect(networks).To(Equal(boshsettings.Networks{
				"network_1": boshsettings.Network{
					Type:    "manual",
					IP:      "1.2.3.4",
					Netmask: "2.3.4.5",
					Gateway: "3.4.5.6",
					Default: []string{"dns"},
					DNS:     []string{"8.8.8.8"},
					Mac:     "fake-mac-address-1",
				},
				"network_2": boshsettings.Network{
					Type:    "dynamic",
					Default: []string{"dns"},
					DNS:     []string{"8.8.8.8"},
					Mac:     "fake-mac-address-2",
				},
			}))
		})

		It("returns a nil Networks if the settings are missing (from an old CPI version)", func() {
			userdataContents := `{}`
			updateUserdata(userdataContents)

			networks, err := metadataService.GetNetworks()
			Expect(err).ToNot(HaveOccurred())
			Expect(networks).To(BeNil())
		})
	})

	Describe("IsAvailable", func() {
		It("return true when it can load successfully", func() {
			Expect(metadataService.IsAvailable()).To(BeTrue())
		})

//.........这里部分代码省略.........

func describeCentosNetManager() {
	var (
		fs                            *fakesys.FakeFileSystem
		cmdRunner                     *fakesys.FakeCmdRunner
		ipResolver                    *fakeip.FakeResolver
		addressBroadcaster            *fakearp.FakeAddressBroadcaster
		netManager                    Manager
		interfaceConfigurationCreator InterfaceConfigurationCreator
	)

	BeforeEach(func() {
		fs = fakesys.NewFakeFileSystem()
		cmdRunner = fakesys.NewFakeCmdRunner()
		ipResolver = &fakeip.FakeResolver{}
		logger := boshlog.NewLogger(boshlog.LevelNone)
		interfaceConfigurationCreator = NewInterfaceConfigurationCreator(logger)
		addressBroadcaster = &fakearp.FakeAddressBroadcaster{}
		netManager = NewCentosNetManager(
			fs,
			cmdRunner,
			ipResolver,
			interfaceConfigurationCreator,
			addressBroadcaster,
			logger,
		)
	})

	writeNetworkDevice := func(iface string, macAddress string, isPhysical bool) string {
		interfacePath := fmt.Sprintf("/sys/class/net/%s", iface)
		fs.WriteFile(interfacePath, []byte{})
		if isPhysical {
			fs.WriteFile(fmt.Sprintf("/sys/class/net/%s/device", iface), []byte{})
		}
		fs.WriteFileString(fmt.Sprintf("/sys/class/net/%s/address", iface), fmt.Sprintf("%s\n", macAddress))

		return interfacePath
	}

	Describe("SetupNetworking", func() {
		var (
			dhcpNetwork                           boshsettings.Network
			staticNetwork                         boshsettings.Network
			expectedNetworkConfigurationForStatic string
			expectedNetworkConfigurationForDHCP   string
			expectedDhclientConfiguration         string
		)

		BeforeEach(func() {
			dhcpNetwork = boshsettings.Network{
				Type:    "dynamic",
				Default: []string{"dns"},
				DNS:     []string{"8.8.8.8", "9.9.9.9"},
				Mac:     "fake-dhcp-mac-address",
			}
			staticNetwork = boshsettings.Network{
				Type:    "manual",
				IP:      "1.2.3.4",
				Netmask: "255.255.255.0",
				Gateway: "3.4.5.6",
				Mac:     "fake-static-mac-address",
			}

			expectedNetworkConfigurationForStatic = `DEVICE=ethstatic
BOOTPROTO=static
IPADDR=1.2.3.4
NETMASK=255.255.255.0
BROADCAST=1.2.3.255
GATEWAY=3.4.5.6
ONBOOT=yes
PEERDNS=no
DNS1=8.8.8.8
DNS2=9.9.9.9
`

			expectedNetworkConfigurationForDHCP = `DEVICE=ethdhcp
BOOTPROTO=dhcp
ONBOOT=yes
PEERDNS=yes
`

			expectedDhclientConfiguration = `# Generated by bosh-agent

option rfc3442-classless-static-routes code 121 = array of unsigned integer 8;

send host-name "<hostname>";

request subnet-mask, broadcast-address, time-offset, routers,
	domain-name, domain-name-servers, domain-search, host-name,
	netbios-name-servers, netbios-scope, interface-mtu,
	rfc3442-classless-static-routes, ntp-servers;

prepend domain-name-servers 8.8.8.8, 9.9.9.9;
`
		})

		stubInterfacesWithVirtual := func(physicalInterfaces map[string]boshsettings.Network, virtualInterfaces []string) {
			interfacePaths := []string{}

			for iface, networkSettings := range physicalInterfaces {
				interfacePaths = append(interfacePaths, writeNetworkDevice(iface, networkSettings.Mac, true))
//.........这里部分代码省略.........

func rootDesc() {
	var (
		repo                   ReleaseRepo
		deploymentStateService DeploymentStateService
		fs                     *fakesys.FakeFileSystem
		fakeUUIDGenerator      *fakeuuid.FakeGenerator
	)

	BeforeEach(func() {
		logger := boshlog.NewLogger(boshlog.LevelNone)
		fs = fakesys.NewFakeFileSystem()
		fakeUUIDGenerator = &fakeuuid.FakeGenerator{}
		fakeUUIDGenerator.GeneratedUUID = "fake-uuid"
		deploymentStateService = NewFileSystemDeploymentStateService(fs, fakeUUIDGenerator, logger, "/fake/path")
		deploymentStateService.Load()
		repo = NewReleaseRepo(deploymentStateService, fakeUUIDGenerator)
	})

	Describe("List", func() {
		Context("when a current release exists", func() {
			BeforeEach(func() {
				conf, err := deploymentStateService.Load()
				Expect(err).ToNot(HaveOccurred())
				conf.Releases = []ReleaseRecord{
					ReleaseRecord{ID: "fake-guid-a", Name: "fake-name-a", Version: "fake-version-a"},
					ReleaseRecord{ID: "fake-guid-b", Name: "fake-name-b", Version: "fake-version-b"},
				}
				err = deploymentStateService.Save(conf)
				Expect(err).ToNot(HaveOccurred())
			})

			It("returns existing release", func() {
				records, err := repo.List()
				Expect(err).ToNot(HaveOccurred())
				Expect(records).To(Equal([]ReleaseRecord{
					{
						ID:      "fake-guid-a",
						Name:    "fake-name-a",
						Version: "fake-version-a",
					},
					{
						ID:      "fake-guid-b",
						Name:    "fake-name-b",
						Version: "fake-version-b",
					},
				}))
			})
		})

		Context("when there are no releases recorded", func() {
			It("returns not found", func() {
				records, err := repo.List()
				Expect(err).ToNot(HaveOccurred())
				Expect(records).To(HaveLen(0))
			})
		})

		Context("when the config service fails to load", func() {
			BeforeEach(func() {
				fs.ReadFileError = errors.New("kaboom")
			})

			It("returns an error", func() {
				_, err := repo.List()
				Expect(err).To(HaveOccurred())
				Expect(err.Error()).To(ContainSubstring("Loading existing config"))
			})
		})
	})

	Describe("Update", func() {
		Context("when there are no existing releases", func() {
			It("saves the provided releases to the config file", func() {
				err := repo.Update([]release.Release{
					fakerelease.New("name1", "1"),
					fakerelease.New("name2", "2"),
				})
				Expect(err).ToNot(HaveOccurred())
				conf, err := deploymentStateService.Load()
				Expect(err).ToNot(HaveOccurred())
				Expect(conf.Releases).To(ConsistOf(
					ReleaseRecord{ID: "fake-uuid", Name: "name1", Version: "1"},
					ReleaseRecord{ID: "fake-uuid", Name: "name2", Version: "2"},
				))
			})
		})

		Context("when the existing releases exactly match the provided releases", func() {
			BeforeEach(func() {
				conf, err := deploymentStateService.Load()
				Expect(err).ToNot(HaveOccurred())
				conf.Releases = []ReleaseRecord{
					ReleaseRecord{ID: "old-uuid", Name: "name1", Version: "1"},
					ReleaseRecord{ID: "old-uuid", Name: "name2", Version: "2"},
				}
				err = deploymentStateService.Save(conf)
				Expect(err).ToNot(HaveOccurred())
			})
		})

//.........这里部分代码省略.........

func describeBuilder() {
	var mockCtrl *gomock.Controller

	BeforeEach(func() {
		mockCtrl = gomock.NewController(GinkgoT())
	})

	AfterEach(func() {
		mockCtrl.Finish()
	})

	var (
		logger boshlog.Logger

		mockReleaseJobResolver *mock_deployment_release.MockJobResolver
		mockDependencyCompiler *mock_state_job.MockDependencyCompiler
		mockJobListRenderer    *mock_template.MockJobListRenderer
		mockCompressor         *mock_template.MockRenderedJobListCompressor
		mockBlobstore          *mock_blobstore.MockBlobstore

		stateBuilder Builder
	)

	BeforeEach(func() {
		logger = boshlog.NewLogger(boshlog.LevelNone)

		mockReleaseJobResolver = mock_deployment_release.NewMockJobResolver(mockCtrl)
		mockDependencyCompiler = mock_state_job.NewMockDependencyCompiler(mockCtrl)
		mockJobListRenderer = mock_template.NewMockJobListRenderer(mockCtrl)
		mockCompressor = mock_template.NewMockRenderedJobListCompressor(mockCtrl)
		mockBlobstore = mock_blobstore.NewMockBlobstore(mockCtrl)
	})

	Describe("Build", func() {
		var (
			mockRenderedJobList        *mock_template.MockRenderedJobList
			mockRenderedJobListArchive *mock_template.MockRenderedJobListArchive

			jobName            string
			instanceID         int
			deploymentManifest bideplmanifest.Manifest
			fakeStage          *fakebiui.FakeStage

			releasePackageLibyaml *birelpkg.Package
			releasePackageRuby    *birelpkg.Package
			releasePackageCPI     *birelpkg.Package

			expectCompile *gomock.Call
		)

		BeforeEach(func() {
			mockRenderedJobList = mock_template.NewMockRenderedJobList(mockCtrl)
			mockRenderedJobListArchive = mock_template.NewMockRenderedJobListArchive(mockCtrl)

			jobName = "fake-deployment-job-name"
			instanceID = 0

			deploymentManifest = bideplmanifest.Manifest{
				Name: "fake-deployment-name",
				Jobs: []bideplmanifest.Job{
					{
						Name: "fake-deployment-job-name",
						Networks: []bideplmanifest.JobNetwork{
							{
								Name: "fake-network-name",
							},
						},
						Templates: []bideplmanifest.ReleaseJobRef{
							{
								Name:    "fake-release-job-name",
								Release: "fake-release-name",
							},
						},
						Properties: biproperty.Map{
							"fake-job-property": "fake-job-property-value",
						},
					},
				},
				Networks: []bideplmanifest.Network{
					{
						Name: "fake-network-name",
						Type: "fake-network-type",
						CloudProperties: biproperty.Map{
							"fake-network-cloud-property": "fake-network-cloud-property-value",
						},
					},
				},
				Properties: biproperty.Map{
					"fake-job-property": "fake-global-property-value", //overridden by job property value
				},
			}

			fakeStage = fakebiui.NewFakeStage()

			stateBuilder = NewBuilder(
				mockReleaseJobResolver,
				mockDependencyCompiler,
				mockJobListRenderer,
				mockCompressor,
				mockBlobstore,
//.........这里部分代码省略.........

	return "", errors.New("fake-get-ip-err")
}

var _ = Describe("arping", func() {
	const arpingIterations = 6

	var (
		fs        *fakesys.FakeFileSystem
		cmdRunner *fakesys.FakeCmdRunner
		arping    AddressBroadcaster
	)

	BeforeEach(func() {
		fs = fakesys.NewFakeFileSystem()
		cmdRunner = fakesys.NewFakeCmdRunner()
		logger := boshlog.NewLogger(boshlog.LevelNone)
		arping = NewArping(cmdRunner, fs, logger, arpingIterations, 0, 0)
	})

	Describe("BroadcastMACAddresses", func() {
		BeforeEach(func() {
			fs.WriteFile("/sys/class/net/eth0", []byte{})
			fs.WriteFile("/sys/class/net/eth1", []byte{})
		})

		It("runs arping commands for each interface", func() {
			addresses := []boship.InterfaceAddress{
				boship.NewSimpleInterfaceAddress("eth0", "192.168.195.6"),
				boship.NewSimpleInterfaceAddress("eth1", "127.0.0.1"),
			}

func createOsFs() (fs FileSystem, runner CmdRunner) {
	logger := boshlog.NewLogger(boshlog.LevelNone)
	fs = NewOsFileSystem(logger)
	return
}