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",
						Mac:     "aa::bb::cc",
						Default: []string{"dns", "gateway"},
						DNS:     &[]string{"54.209.78.6", "127.0.0.5"},
						Gateway: "10.10.0.1",
					}.Build(),
				}
				stubInterfaces(networks)
				staticInterfaceConfigurations, dhcpInterfaceConfigurations, dnsServers, err := netManager.ComputeNetworkConfig(networks)
				Expect(err).ToNot(HaveOccurred())

				Expect(staticInterfaceConfigurations).To(Equal([]StaticInterfaceConfiguration{
					{
						Name:      "default",
						Address:   "10.10.0.32",
						Netmask:   "255.255.255.0",
						Network:   "10.10.0.0",
						Broadcast: "10.10.0.255",
						Mac:       "aa::bb::cc",
						Gateway:   "10.10.0.1",
					},
				}))
				Expect(dhcpInterfaceConfigurations).To(BeEmpty())
				Expect(dnsServers).To(Equal([]string{"54.209.78.6", "127.0.0.5"}))
			})
		})
	})

	Describe("SetupNetworking", func() {
		var (
			dhcpNetwork                                  boshsettings.Network
			staticNetwork                                boshsettings.Network
			expectedNetworkConfigurationForStaticAndDhcp 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",
			}
			expectedNetworkConfigurationForStaticAndDhcp = `# Generated by bosh-agent
auto lo
iface lo inet loopback

auto ethdhcp
iface ethdhcp inet dhcp

auto ethstatic
iface ethstatic inet static
    address 1.2.3.4
    network 1.2.3.0
    netmask 255.255.255.0
    broadcast 1.2.3.255
    gateway 3.4.5.6

dns-nameservers 8.8.8.8 9.9.9.9`
		})

		It("writes interfaces in /etc/network/interfaces in alphabetic order", func() {
			anotherDHCPNetwork := boshsettings.Network{
				Type:    "dynamic",
				Default: []string{"dns"},
				DNS:     []string{"8.8.8.8", "9.9.9.9"},
				Mac:     "fake-another-mac-address",
			}

			stubInterfaces(map[string]boshsettings.Network{
				"ethstatic": staticNetwork,
				"ethdhcp1":  dhcpNetwork,
				"ethdhcp0":  anotherDHCPNetwork,
			})

			err := netManager.SetupNetworking(boshsettings.Networks{
				"dhcp-network-1": dhcpNetwork,
				"dhcp-network-2": anotherDHCPNetwork,
				"static-network": staticNetwork,
			}, nil)
			Expect(err).ToNot(HaveOccurred())

			networkConfig := fs.GetFileTestStat("/etc/network/interfaces")
			Expect(networkConfig).ToNot(BeNil())

			expectedNetworkConfigurationForStaticAndDhcp = `# Generated by bosh-agent
auto lo
iface lo inet loopback

auto ethdhcp0
iface ethdhcp0 inet dhcp

auto ethdhcp1
iface ethdhcp1 inet dhcp

auto ethstatic
iface ethstatic inet static
    address 1.2.3.4
    network 1.2.3.0
    netmask 255.255.255.0
    broadcast 1.2.3.255
    gateway 3.4.5.6

dns-nameservers 8.8.8.8 9.9.9.9`
			Expect(networkConfig.StringContents()).To(Equal(expectedNetworkConfigurationForStaticAndDhcp))
		})

		It("writes /etc/network/interfaces without dns-namservers if there are no dns servers", func() {
			staticNetworkWithoutDNS := boshsettings.Network{
				Type:    "manual",
				IP:      "1.2.3.4",
				Netmask: "255.255.255.0",
				Gateway: "3.4.5.6",
				Mac:     "fake-static-mac-address",
			}

			stubInterfaces(map[string]boshsettings.Network{
				"ethstatic": staticNetworkWithoutDNS,
			})

			err := netManager.SetupNetworking(boshsettings.Networks{"static-network": staticNetworkWithoutDNS}, nil)
			Expect(err).ToNot(HaveOccurred())

			networkConfig := fs.GetFileTestStat("/etc/network/interfaces")
			Expect(networkConfig).ToNot(BeNil())
			Expect(networkConfig.StringContents()).To(Equal(`# Generated by bosh-agent
auto lo
iface lo inet loopback

auto ethstatic
iface ethstatic inet static
    address 1.2.3.4
    network 1.2.3.0
    netmask 255.255.255.0
    broadcast 1.2.3.255
    gateway 3.4.5.6
`))
		})

		It("returns errors from glob /sys/class/net/", func() {
			fs.GlobErr = errors.New("fs-glob-error")
			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, nil)
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("fs-glob-error"))
		})

		It("returns errors from writing the network configuration", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"dhcp":   dhcpNetwork,
				"static": staticNetwork,
			})
			fs.WriteFileError = errors.New("fs-write-file-error")
			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, nil)
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("fs-write-file-error"))
		})

		It("returns errors when it can't creating network interface configurations", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})
			staticNetwork.Netmask = "not an ip" //will cause InterfaceConfigurationCreator to fail
			err := netManager.SetupNetworking(boshsettings.Networks{"static-network": staticNetwork}, nil)
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("Creating interface configurations"))
		})

		It("writes a dhcp configuration if there are dhcp networks", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})

			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, nil)
			Expect(err).ToNot(HaveOccurred())

			dhcpConfig := fs.GetFileTestStat("/etc/dhcp/dhclient.conf")
			Expect(dhcpConfig).ToNot(BeNil())
			Expect(dhcpConfig.StringContents()).To(Equal(`# 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;
`))

		})

		It("writes a dhcp configuration without prepended dns servers if there are no dns servers specified", func() {
			dhcpNetworkWithoutDNS := boshsettings.Network{
				Type: "dynamic",
				Mac:  "fake-dhcp-mac-address",
			}

			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp": dhcpNetwork,
			})

			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetworkWithoutDNS}, nil)
			Expect(err).ToNot(HaveOccurred())

			dhcpConfig := fs.GetFileTestStat("/etc/dhcp/dhclient.conf")
			Expect(dhcpConfig).ToNot(BeNil())
			Expect(dhcpConfig.StringContents()).To(Equal(`# 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;

`))

		})

		It("returns an error if it can't write a dhcp configuration", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})

			fs.WriteFileErrors["/etc/dhcp/dhclient.conf"] = errors.New("dhclient.conf-write-error")

			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, nil)
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("dhclient.conf-write-error"))
		})

		It("doesn't write a dhcp configuration if there are no dhcp networks", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethstatic": staticNetwork,
			})

			err := netManager.SetupNetworking(boshsettings.Networks{"static-network": staticNetwork}, nil)
			Expect(err).ToNot(HaveOccurred())

			dhcpConfig := fs.GetFileTestStat("/etc/dhcp/dhclient.conf")
			Expect(dhcpConfig).To(BeNil())
		})

		It("restarts the networks if /etc/network/interfaces changes", func() {
			initialDhcpConfig := `# 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;
`

			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})

			fs.WriteFileString("/etc/dhcp/dhclient.conf", initialDhcpConfig)

			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, nil)
			Expect(err).ToNot(HaveOccurred())

			Expect(len(cmdRunner.RunCommands)).To(Equal(5))
			Expect(cmdRunner.RunCommands[0]).To(Equal([]string{"pkill", "dhclient"}))
			Expect(cmdRunner.RunCommands[1:3]).To(ContainElement([]string{"resolvconf", "-d", "ethdhcp.dhclient"}))
			Expect(cmdRunner.RunCommands[1:3]).To(ContainElement([]string{"resolvconf", "-d", "ethstatic.dhclient"}))
			Expect(cmdRunner.RunCommands[3]).To(Equal([]string{"ifdown", "-a", "--no-loopback"}))
			Expect(cmdRunner.RunCommands[4]).To(Equal([]string{"ifup", "-a", "--no-loopback"}))
		})

		It("doesn't restart the networks if /etc/network/interfaces and /etc/dhcp/dhclient.conf don't change", func() {
			initialDhcpConfig := `# 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;
`
			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})

			fs.WriteFileString("/etc/network/interfaces", expectedNetworkConfigurationForStaticAndDhcp)
			fs.WriteFileString("/etc/dhcp/dhclient.conf", initialDhcpConfig)

			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, nil)
			Expect(err).ToNot(HaveOccurred())

			networkConfig := fs.GetFileTestStat("/etc/network/interfaces")
			Expect(networkConfig.StringContents()).To(Equal(expectedNetworkConfigurationForStaticAndDhcp))
			dhcpConfig := fs.GetFileTestStat("/etc/dhcp/dhclient.conf")
			Expect(dhcpConfig.StringContents()).To(Equal(initialDhcpConfig))

			Expect(len(cmdRunner.RunCommands)).To(Equal(0))
		})

		It("restarts the networks if /etc/dhcp/dhclient.conf changes", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})

			fs.WriteFileString("/etc/network/interfaces", expectedNetworkConfigurationForStaticAndDhcp)

			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, nil)
			Expect(err).ToNot(HaveOccurred())

			networkConfig := fs.GetFileTestStat("/etc/network/interfaces")
			Expect(networkConfig.StringContents()).To(Equal(expectedNetworkConfigurationForStaticAndDhcp))

			Expect(len(cmdRunner.RunCommands)).To(Equal(5))
			Expect(cmdRunner.RunCommands[0]).To(Equal([]string{"pkill", "dhclient"}))
			Expect(cmdRunner.RunCommands[1:3]).To(ContainElement([]string{"resolvconf", "-d", "ethdhcp.dhclient"}))
			Expect(cmdRunner.RunCommands[1:3]).To(ContainElement([]string{"resolvconf", "-d", "ethstatic.dhclient"}))
			Expect(cmdRunner.RunCommands[3]).To(Equal([]string{"ifdown", "-a", "--no-loopback"}))
			Expect(cmdRunner.RunCommands[4]).To(Equal([]string{"ifup", "-a", "--no-loopback"}))
		})

		It("broadcasts MAC addresses for all interfaces", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})

			errCh := make(chan error)
			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, errCh)
			Expect(err).ToNot(HaveOccurred())

			broadcastErr := <-errCh // wait for all arpings
			Expect(broadcastErr).ToNot(HaveOccurred())

			Expect(addressBroadcaster.BroadcastMACAddressesAddresses).To(Equal([]boship.InterfaceAddress{
				boship.NewSimpleInterfaceAddress("ethstatic", "1.2.3.4"),
				boship.NewResolvingInterfaceAddress("ethdhcp", ipResolver),
			}))

		})

		It("skips vip networks", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})

			vipNetwork := boshsettings.Network{
				Type:    "vip",
				Default: []string{"dns"},
				DNS:     []string{"8.8.8.8", "9.9.9.9"},
				Mac:     "fake-vip-mac-address",
				IP:      "9.8.7.6",
			}

			err := netManager.SetupNetworking(boshsettings.Networks{
				"dhcp-network":   dhcpNetwork,
				"static-network": staticNetwork,
				"vip-network":    vipNetwork,
			}, nil)
			Expect(err).ToNot(HaveOccurred())

			networkConfig := fs.GetFileTestStat("/etc/network/interfaces")
			Expect(networkConfig).ToNot(BeNil())
			Expect(networkConfig.StringContents()).To(Equal(expectedNetworkConfigurationForStaticAndDhcp))
		})

		Context("when no MAC address is provided in the settings", func() {
			It("configures network for single device", func() {
				staticNetworkWithoutMAC := boshsettings.Network{
					Type:    "manual",
					IP:      "2.2.2.2",
					Netmask: "255.255.255.0",
					Gateway: "3.4.5.6",
				}

				stubInterfaces(
					map[string]boshsettings.Network{
						"ethstatic": staticNetwork,
					},
				)

				err := netManager.SetupNetworking(boshsettings.Networks{
					"static-network": staticNetworkWithoutMAC,
				}, nil)
				Expect(err).ToNot(HaveOccurred())

				networkConfig := fs.GetFileTestStat("/etc/network/interfaces")
				Expect(networkConfig).ToNot(BeNil())

				expectedNetworkConfiguration := `# Generated by bosh-agent
auto lo
iface lo inet loopback

auto ethstatic
iface ethstatic inet static
    address 2.2.2.2
    network 2.2.2.0
    netmask 255.255.255.0
    broadcast 2.2.2.255
    gateway 3.4.5.6
`

				Expect(networkConfig.StringContents()).To(Equal(expectedNetworkConfiguration))
			})

			It("configures network for a single physical device, when a virtual device is also present", func() {
				staticNetworkWithoutMAC := boshsettings.Network{
					Type:    "manual",
					IP:      "2.2.2.2",
					Netmask: "255.255.255.0",
					Gateway: "3.4.5.6",
				}

				stubInterfacesWithVirtual(
					map[string]boshsettings.Network{
						"ethstatic": staticNetwork,
					},
					[]string{"virtual"},
				)

				err := netManager.SetupNetworking(boshsettings.Networks{
					"static-network": staticNetworkWithoutMAC,
				}, nil)
				Expect(err).ToNot(HaveOccurred())

				networkConfig := fs.GetFileTestStat("/etc/network/interfaces")
				Expect(networkConfig).ToNot(BeNil())

				expectedNetworkConfiguration := `# Generated by bosh-agent
auto lo
iface lo inet loopback

auto ethstatic
iface ethstatic inet static
    address 2.2.2.2
    network 2.2.2.0
    netmask 255.255.255.0
    broadcast 2.2.2.255
    gateway 3.4.5.6
`

				Expect(networkConfig.StringContents()).To(Equal(expectedNetworkConfiguration))
			})
		})
	})

	Describe("GetConfiguredNetworkInterfaces", func() {
		Context("when there are network devices", func() {
			BeforeEach(func() {
				interfacePaths := []string{}
				interfacePaths = append(interfacePaths, writeNetworkDevice("fake-eth0", "aa:bb", true))
				interfacePaths = append(interfacePaths, writeNetworkDevice("fake-eth1", "cc:dd", true))
				interfacePaths = append(interfacePaths, writeNetworkDevice("fake-eth2", "ee:ff", true))
				fs.SetGlob("/sys/class/net/*", interfacePaths)
			})

			It("returns networks that are defined in /etc/network/interfaces", func() {
				cmdRunner.AddCmdResult("ifup --no-act fake-eth0", fakesys.FakeCmdResult{
					Stdout:     "",
					Stderr:     "ifup: interface fake-eth0 already configured",
					ExitStatus: 0,
				})

				cmdRunner.AddCmdResult("ifup --no-act fake-eth1", fakesys.FakeCmdResult{
					Stdout:     "",
					Stderr:     "Ignoring unknown interface fake-eth1=fake-eth1.",
					ExitStatus: 0,
				})

				cmdRunner.AddCmdResult("ifup --no-act fake-eth2", fakesys.FakeCmdResult{
					Stdout:     "",
					Stderr:     "ifup: interface fake-eth2 already configured",
					ExitStatus: 0,
				})

				interfaces, err := netManager.GetConfiguredNetworkInterfaces()
				Expect(err).ToNot(HaveOccurred())

				Expect(interfaces).To(ConsistOf("fake-eth0", "fake-eth2"))
			})
		})

		Context("when there are no network devices", func() {
			It("returns empty list", func() {
				interfaces, err := netManager.GetConfiguredNetworkInterfaces()
				Expect(err).ToNot(HaveOccurred())
				Expect(interfaces).To(Equal([]string{}))
			})
		})
	})
}
					{
						CID:  "fake-disk-cid",
						Size: 1024,
						CloudProperties: biproperty.Map{
							"fake-disk-property-key": "fake-disk-property-value",
						},
					},
				},
			}
			expectedDeploymentStateFileContents, err := json.MarshalIndent(deploymentState, "", "    ")
			Expect(deploymentStateFileContents).To(Equal(string(expectedDeploymentStateFileContents)))
		})

		Context("when the deployment file cannot be written", func() {
			BeforeEach(func() {
				fakeFs.WriteFileError = errors.New("")
			})

			It("returns an error when it cannot write the config file", func() {
				config := DeploymentState{
					Stemcells: []StemcellRecord{},
				}
				err := service.Save(config)
				Expect(err).To(HaveOccurred())
				Expect(err.Error()).To(ContainSubstring("Writing deployment state file '/some/deployment.json'"))
			})
		})
	})

	Describe("Cleanup", func() {
		It("returns true if deployment state file deleted", func() {
Esempio n. 3
0
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()
							Expect(err).ToNot(HaveOccurred())
							Expect(service.GetSettings()).To(Equal(Settings{
								AgentID: "some-agent-id",
								Networks: Networks{
									"fake-net-1": Network{
										Type:     NetworkTypeDynamic,
										IP:       "fake-resolved-ip",
										Netmask:  "fake-resolved-netmask",
										Gateway:  "fake-resolved-gateway",
										Resolved: true,
									},
								},
							}))
						})
					})
				})

				Context("when non-unmarshallable settings file exists", func() {
					It("returns any error from the fetcher", func() {
						fs.WriteFile("/setting/path.json", []byte(`$%^&*(`))

						err := service.LoadSettings()
						Expect(err).To(HaveOccurred())
						Expect(err.Error()).To(ContainSubstring("fake-fetch-error"))

						Expect(service.GetSettings()).To(Equal(Settings{}))
					})
				})

				Context("when no settings file exists", func() {
					It("returns any error from the fetcher", func() {
						err := service.LoadSettings()
						Expect(err).To(HaveOccurred())
						Expect(err.Error()).To(ContainSubstring("fake-fetch-error"))

						Expect(service.GetSettings()).To(Equal(Settings{}))
					})
				})
			})
		})

		Describe("InvalidateSettings", func() {
			It("removes the settings file", func() {
				fakeSettingsSource.SettingsValue = Settings{}
				fakeSettingsSource.SettingsErr = nil
				service, fs := buildService()

				fs.WriteFile("/setting/path.json", []byte(`{}`))

				err := service.InvalidateSettings()
				Expect(err).ToNot(HaveOccurred())

				Expect(fs.FileExists("/setting/path.json")).To(BeFalse())
			})

			It("returns err if removing settings file errored", func() {
				fakeSettingsSource.SettingsValue = Settings{}
				fakeSettingsSource.SettingsErr = nil
				service, fs := buildService()

				fs.RemoveAllError = errors.New("fs-remove-all-error")

				err := service.InvalidateSettings()
				Expect(err).To(HaveOccurred())
				Expect(err.Error()).To(ContainSubstring("fs-remove-all-error"))
			})
		})

		Describe("GetSettings", func() {
			var (
				loadedSettings Settings
				service        Service
			)

			BeforeEach(func() {
				loadedSettings = Settings{AgentID: "some-agent-id"}
			})

			JustBeforeEach(func() {
				fakeSettingsSource.SettingsValue = loadedSettings
				fakeSettingsSource.SettingsErr = nil
				service, _ = buildService()
				err := service.LoadSettings()
				Expect(err).NotTo(HaveOccurred())
			})

			Context("when there is are no dynamic networks", func() {
				It("returns settings without modifying any networks", func() {
					Expect(service.GetSettings()).To(Equal(loadedSettings))
				})

				It("does not try to determine default network", func() {
					_ = service.GetSettings()
					Expect(fakeDefaultNetworkResolver.GetDefaultNetworkCalled).To(BeFalse())
				})
			})

			Context("when there is network that needs to be resolved (ip, netmask, or mac are not set)", func() {
				BeforeEach(func() {
					loadedSettings = Settings{
						Networks: map[string]Network{
							"fake-net1": Network{
								IP:      "fake-net1-ip",
								Netmask: "fake-net1-netmask",
								Mac:     "fake-net1-mac",
								Gateway: "fake-net1-gateway",
							},
							"fake-net2": Network{
								Gateway: "fake-net2-gateway",
								DNS:     []string{"fake-net2-dns"},
							},
						},
					}
				})

				Context("when default network can be retrieved", func() {
					BeforeEach(func() {
						fakeDefaultNetworkResolver.GetDefaultNetworkNetwork = Network{
							IP:      "fake-resolved-ip",
							Netmask: "fake-resolved-netmask",
							Gateway: "fake-resolved-gateway",
						}
					})

					It("returns settings with resolved dynamic network ip, netmask, gateway and keeping everything else the same", func() {
						settings := service.GetSettings()
						Expect(settings).To(Equal(Settings{
							Networks: map[string]Network{
								"fake-net1": Network{
									IP:      "fake-net1-ip",
									Netmask: "fake-net1-netmask",
									Mac:     "fake-net1-mac",
									Gateway: "fake-net1-gateway",
								},
								"fake-net2": Network{
									IP:       "fake-resolved-ip",
									Netmask:  "fake-resolved-netmask",
									Gateway:  "fake-resolved-gateway",
									DNS:      []string{"fake-net2-dns"},
									Resolved: true,
								},
							},
						}))
					})
				})

				Context("when default network fails to be retrieved", func() {
					BeforeEach(func() {
						fakeDefaultNetworkResolver.GetDefaultNetworkErr = errors.New("fake-get-default-network-err")
					})

					It("returns error", func() {
						settings := service.GetSettings()
						Expect(settings).To(Equal(loadedSettings))
					})
				})
			})
		})
	})
}
Esempio n. 4
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		Context("when creating disk fails", func() {
			BeforeEach(func() {
				fakeCloud.CreateDiskErr = errors.New("fake-create-error")
			})

			It("returns an error", func() {
				_, err := manager.Create(diskPool, "fake-vm-cid")
				Expect(err).To(HaveOccurred())
				Expect(err.Error()).To(ContainSubstring("fake-create-error"))
			})
		})

		Context("when updating disk record fails", func() {
			BeforeEach(func() {
				fakeFs.WriteFileError = errors.New("fake-write-error")
			})

			It("returns an error", func() {
				_, err := manager.Create(diskPool, "fake-vm-cid")
				Expect(err).To(HaveOccurred())
				Expect(err.Error()).To(ContainSubstring("fake-write-error"))
			})
		})
	})

	Describe("FindCurrent", func() {
		Context("when disk already exists in disk repo", func() {
			BeforeEach(func() {
				diskRecord, err := diskRepo.Save("fake-existing-disk-cid", 1024, biproperty.Map{})
				Expect(err).ToNot(HaveOccurred())
			Expect(err).ToNot(HaveOccurred())

			_, found, err := compiledPackageRepo.Find(pkg)
			Expect(err).ToNot(HaveOccurred())
			Expect(found).To(BeTrue())

			transitive.Fingerprint = "new-fake-dependency-fingerprint"

			_, found, err = compiledPackageRepo.Find(pkg)
			Expect(err).ToNot(HaveOccurred())
			Expect(found).To(BeFalse())
		})

		Context("when saving to index fails", func() {
			It("returns error", func() {
				fakeFS.WriteFileError = errors.New("Could not save")
				record := CompiledPackageRecord{
					BlobID:   "fake-blob-id",
					BlobSHA1: "fake-sha1",
				}

				pkg := birelpkg.Package{
					Name: "fake-package-name",
				}

				err := compiledPackageRepo.Save(pkg, record)
				Expect(err).To(HaveOccurred())
				Expect(err.Error()).To(ContainSubstring("Saving compiled package"))
			})
		})
Esempio n. 6
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				Expect(err).NotTo(HaveOccurred())
				Expect(fakeFs.FileExists(fmt.Sprintf("%s/bosh-trusted-cert-1.crt", certBasePath))).To(BeTrue())
				Expect(fakeFs.FileExists(fmt.Sprintf("%s/bosh-trusted-cert-2.crt", certBasePath))).To(BeTrue())
				Expect(countFiles(fakeFs, certBasePath)).To(Equal(2))

				fakeFs.SetGlob(fmt.Sprintf("%s/bosh-trusted-cert-*", certBasePath), []string{
					fmt.Sprintf("%s/bosh-trusted-cert-1.crt", certBasePath),
					fmt.Sprintf("%s/bosh-trusted-cert-2.crt", certBasePath),
				})
				certManager.UpdateCertificates(cert1)
				Expect(fakeFs.FileExists(fmt.Sprintf("%s/bosh-trusted-cert-1.crt", certBasePath))).To(BeTrue())
				Expect(countFiles(fakeFs, certBasePath)).To(Equal(1))
			})

			It("returns an error when writing new cert files fails", func() {
				fakeFs.WriteFileError = errors.New("NOT ALLOW")
				err := certManager.UpdateCertificates(cert1)
				Expect(err).To(HaveOccurred())
			})

			It("returns an error when deleting old certs fails", func() {
				fakeFs.RemoveAllError = errors.New("NOT ALLOW")
				fakeFs.WriteFileString(fmt.Sprintf("%s/bosh-trusted-cert-1.crt", certBasePath), "goodbye")
				fakeFs.SetGlob(fmt.Sprintf("%s/bosh-trusted-cert-*", certBasePath), []string{
					fmt.Sprintf("%s/bosh-trusted-cert-1.crt", certBasePath),
				})

				err := certManager.UpdateCertificates("")
				Expect(err).To(HaveOccurred())
			})
		}
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))
			}

			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)
		}

		It("writes a network script for static and dynamic interfaces", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})

			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, nil)
			Expect(err).ToNot(HaveOccurred())

			staticConfig := fs.GetFileTestStat("/etc/sysconfig/network-scripts/ifcfg-ethstatic")
			Expect(staticConfig).ToNot(BeNil())
			Expect(staticConfig.StringContents()).To(Equal(expectedNetworkConfigurationForStatic))

			dhcpConfig := fs.GetFileTestStat("/etc/sysconfig/network-scripts/ifcfg-ethdhcp")
			Expect(dhcpConfig).ToNot(BeNil())
			Expect(dhcpConfig.StringContents()).To(Equal(expectedNetworkConfigurationForDHCP))
		})

		It("returns errors from glob /sys/class/net/", func() {
			fs.GlobErr = errors.New("fs-glob-error")
			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, nil)
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("fs-glob-error"))
		})

		It("returns errors from writing the network configuration", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"dhcp":   dhcpNetwork,
				"static": staticNetwork,
			})
			fs.WriteFileError = errors.New("fs-write-file-error")
			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, nil)
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("fs-write-file-error"))
		})

		It("returns errors when it can't create network interface configurations", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethstatic": staticNetwork,
			})

			staticNetwork.Netmask = "not an ip" //will cause InterfaceConfigurationCreator to fail
			err := netManager.SetupNetworking(boshsettings.Networks{"static-network": staticNetwork}, nil)
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("Creating interface configurations"))
		})

		It("wrtites a dhcp configuration if there are dhcp networks", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})

			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, nil)
			Expect(err).ToNot(HaveOccurred())

			dhcpConfig := fs.GetFileTestStat("/etc/dhcp/dhclient.conf")
			Expect(dhcpConfig).ToNot(BeNil())
			Expect(dhcpConfig.StringContents()).To(Equal(expectedDhclientConfiguration))

			dhcpConfigSymlink := fs.GetFileTestStat("/etc/dhcp/dhclient-ethdhcp.conf")
			Expect(dhcpConfigSymlink).ToNot(BeNil())
			Expect(dhcpConfigSymlink.SymlinkTarget).To(Equal("/etc/dhcp/dhclient.conf"))
		})

		It("writes a dhcp configuration without prepended dns servers if there are no dns servers specified", func() {
			dhcpNetworkWithoutDNS := boshsettings.Network{
				Type: "dynamic",
				Mac:  "fake-dhcp-mac-address",
			}

			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp": dhcpNetwork,
			})

			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetworkWithoutDNS}, nil)
			Expect(err).ToNot(HaveOccurred())

			dhcpConfig := fs.GetFileTestStat("/etc/dhcp/dhclient.conf")
			Expect(dhcpConfig).ToNot(BeNil())
			Expect(dhcpConfig.StringContents()).To(Equal(`# 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;

`))
			dhcpConfigSymlink := fs.GetFileTestStat("/etc/dhcp/dhclient-ethdhcp.conf")
			Expect(dhcpConfigSymlink).ToNot(BeNil())
			Expect(dhcpConfigSymlink.SymlinkTarget).To(Equal("/etc/dhcp/dhclient.conf"))
		})

		It("returns an error if it can't write a dhcp configuration", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})

			fs.WriteFileErrors["/etc/dhcp/dhclient.conf"] = errors.New("dhclient.conf-write-error")

			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, nil)
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("dhclient.conf-write-error"))
		})

		It("returns an error if it can't symlink a dhcp configuration", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})

			fs.SymlinkError = errors.New("dhclient-ethdhcp.conf-symlink-error")

			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, nil)
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("dhclient-ethdhcp.conf-symlink-error"))
		})

		It("doesn't write a dhcp configuration if there are no dhcp networks", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethstatic": staticNetwork,
			})

			err := netManager.SetupNetworking(boshsettings.Networks{"static-network": staticNetwork}, nil)
			Expect(err).ToNot(HaveOccurred())

			dhcpConfig := fs.GetFileTestStat("/etc/dhcp/dhclient-ethdhcp.conf")
			Expect(dhcpConfig).To(BeNil())
		})

		It("restarts the networks if any ifconfig file changes", func() {
			changingStaticNetwork := boshsettings.Network{
				Type:    "manual",
				IP:      "1.2.3.5",
				Netmask: "255.255.255.0",
				Gateway: "3.4.5.6",
				Mac:     "ethstatict-that-changes",
			}

			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":                dhcpNetwork,
				"ethstatic-that-changes": changingStaticNetwork,
				"ethstatic":              staticNetwork,
			})

			fs.WriteFileString("/etc/sysconfig/network-scripts/ifcfg-ethstatic", expectedNetworkConfigurationForStatic)
			fs.WriteFileString("/etc/dhcp/dhclient.conf", expectedDhclientConfiguration)

			err := netManager.SetupNetworking(boshsettings.Networks{
				"dhcp-network":            dhcpNetwork,
				"changing-static-network": changingStaticNetwork,
				"static-network":          staticNetwork,
			},
				nil)
			Expect(err).ToNot(HaveOccurred())

			Expect(len(cmdRunner.RunCommands)).To(Equal(1))
			Expect(cmdRunner.RunCommands[0]).To(Equal([]string{"service", "network", "restart"}))
		})

		It("doesn't restart the networks if ifcfg and /etc/dhcp/dhclient.conf don't change", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})

			fs.WriteFileString("/etc/sysconfig/network-scripts/ifcfg-ethstatic", expectedNetworkConfigurationForStatic)
			fs.WriteFileString("/etc/sysconfig/network-scripts/ifcfg-ethdhcp", expectedNetworkConfigurationForDHCP)
			fs.WriteFileString("/etc/dhcp/dhclient.conf", expectedDhclientConfiguration)

			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, nil)
			Expect(err).ToNot(HaveOccurred())

			networkConfig := fs.GetFileTestStat("/etc/sysconfig/network-scripts/ifcfg-ethstatic")
			Expect(networkConfig).ToNot(BeNil())
			Expect(networkConfig.StringContents()).To(Equal(expectedNetworkConfigurationForStatic))

			dhcpConfig := fs.GetFileTestStat("/etc/dhcp/dhclient.conf")
			Expect(dhcpConfig.StringContents()).To(Equal(expectedDhclientConfiguration))

			Expect(len(cmdRunner.RunCommands)).To(Equal(0))
		})

		It("restarts the networks if /etc/dhcp/dhclient.conf changes", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})

			fs.WriteFileString("/etc/sysconfig/network-scripts/ifcfg-ethstatic", expectedNetworkConfigurationForStatic)

			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, nil)
			Expect(err).ToNot(HaveOccurred())

			networkConfig := fs.GetFileTestStat("/etc/sysconfig/network-scripts/ifcfg-ethstatic")
			Expect(networkConfig).ToNot(BeNil())
			Expect(networkConfig.StringContents()).To(Equal(expectedNetworkConfigurationForStatic))

			Expect(len(cmdRunner.RunCommands)).To(Equal(1))
			Expect(cmdRunner.RunCommands[0]).To(Equal([]string{"service", "network", "restart"}))
		})

		It("broadcasts MAC addresses for all interfaces", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})

			errCh := make(chan error)
			err := netManager.SetupNetworking(boshsettings.Networks{"dhcp-network": dhcpNetwork, "static-network": staticNetwork}, errCh)
			Expect(err).ToNot(HaveOccurred())

			broadcastErr := <-errCh // wait for all arpings
			Expect(broadcastErr).ToNot(HaveOccurred())

			Expect(addressBroadcaster.BroadcastMACAddressesAddresses).To(Equal([]boship.InterfaceAddress{
				boship.NewSimpleInterfaceAddress("ethstatic", "1.2.3.4"),
				boship.NewResolvingInterfaceAddress("ethdhcp", ipResolver),
			}))

		})

		It("skips vip networks", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethdhcp":   dhcpNetwork,
				"ethstatic": staticNetwork,
			})

			vipNetwork := boshsettings.Network{
				Type:    "vip",
				Default: []string{"dns"},
				DNS:     []string{"4.4.4.4", "5.5.5.5"},
				Mac:     "fake-vip-mac-address",
				IP:      "9.8.7.6",
			}

			err := netManager.SetupNetworking(boshsettings.Networks{
				"dhcp-network":   dhcpNetwork,
				"static-network": staticNetwork,
				"vip-network":    vipNetwork,
			}, nil)
			Expect(err).ToNot(HaveOccurred())

			networkConfig := fs.GetFileTestStat("/etc/sysconfig/network-scripts/ifcfg-ethstatic")
			Expect(networkConfig).ToNot(BeNil())
			Expect(networkConfig.StringContents()).To(Equal(expectedNetworkConfigurationForStatic))
		})

		It("doesn't use vip networks dns", func() {
			stubInterfaces(map[string]boshsettings.Network{
				"ethstatic": staticNetwork,
			})

			vipNetwork := boshsettings.Network{
				Type:    "vip",
				Default: []string{"dns"},
				DNS:     []string{"4.4.4.4", "5.5.5.5"},
				Mac:     "fake-vip-mac-address",
				IP:      "9.8.7.6",
			}

			err := netManager.SetupNetworking(boshsettings.Networks{
				"vip-network":    vipNetwork,
				"static-network": staticNetwork,
			}, nil)
			Expect(err).ToNot(HaveOccurred())

			networkConfig := fs.GetFileTestStat("/etc/sysconfig/network-scripts/ifcfg-ethstatic")
			Expect(networkConfig).ToNot(BeNil())
			Expect(networkConfig.StringContents()).ToNot(ContainSubstring("4.4.4.4"))
			Expect(networkConfig.StringContents()).ToNot(ContainSubstring("5.5.5.5"))
		})

		Context("when no MAC address is provided in the settings", func() {
			var staticNetworkWithoutMAC boshsettings.Network

			BeforeEach(func() {
				staticNetworkWithoutMAC = boshsettings.Network{
					Type:    "manual",
					IP:      "1.2.3.4",
					Netmask: "255.255.255.0",
					Gateway: "3.4.5.6",
					DNS:     []string{"8.8.8.8", "9.9.9.9"},
					Default: []string{"dns"},
				}
			})

			It("configures network for single device", func() {
				stubInterfaces(
					map[string]boshsettings.Network{
						"ethstatic": staticNetwork,
					},
				)

				err := netManager.SetupNetworking(boshsettings.Networks{
					"static-network": staticNetworkWithoutMAC,
				}, nil)
				Expect(err).ToNot(HaveOccurred())

				networkConfig := fs.GetFileTestStat("/etc/sysconfig/network-scripts/ifcfg-ethstatic")
				Expect(networkConfig).ToNot(BeNil())
				Expect(networkConfig.StringContents()).To(Equal(expectedNetworkConfigurationForStatic))
			})

			It("configures network for single device, when a virtual device is also present", func() {
				stubInterfacesWithVirtual(
					map[string]boshsettings.Network{
						"ethstatic": staticNetwork,
					},
					[]string{"virtual"},
				)

				err := netManager.SetupNetworking(boshsettings.Networks{
					"static-network": staticNetworkWithoutMAC,
				}, nil)
				Expect(err).ToNot(HaveOccurred())

				physicalNetworkConfig := fs.GetFileTestStat("/etc/sysconfig/network-scripts/ifcfg-ethstatic")
				Expect(physicalNetworkConfig).ToNot(BeNil())
				Expect(physicalNetworkConfig.StringContents()).To(Equal(expectedNetworkConfigurationForStatic))

				virtualNetworkConfig := fs.GetFileTestStat("/etc/sysconfig/network-scripts/ifcfg-virtual")
				Expect(virtualNetworkConfig).To(BeNil())
			})
		})
	})

	Describe("GetConfiguredNetworkInterfaces", func() {
		Context("when there are network devices", func() {
			BeforeEach(func() {
				interfacePaths := []string{}
				interfacePaths = append(interfacePaths, writeNetworkDevice("fake-eth0", "aa:bb", true))
				interfacePaths = append(interfacePaths, writeNetworkDevice("fake-eth1", "cc:dd", true))
				interfacePaths = append(interfacePaths, writeNetworkDevice("fake-eth2", "ee:ff", true))
				fs.SetGlob("/sys/class/net/*", interfacePaths)
			})

			writeIfcgfFile := func(iface string) {
				fs.WriteFileString(fmt.Sprintf("/etc/sysconfig/network-scripts/ifcfg-%s", iface), "fake-config")
			}

			It("returns networks that have ifcfg config present", func() {
				writeIfcgfFile("fake-eth0")
				writeIfcgfFile("fake-eth2")

				interfaces, err := netManager.GetConfiguredNetworkInterfaces()
				Expect(err).ToNot(HaveOccurred())

				Expect(interfaces).To(ConsistOf("fake-eth0", "fake-eth2"))
			})
		})

		Context("when there are no network devices", func() {
			It("returns empty list", func() {
				interfaces, err := netManager.GetConfiguredNetworkInterfaces()
				Expect(err).ToNot(HaveOccurred())
				Expect(interfaces).To(Equal([]string{}))
			})
		})
	})
}
Esempio n. 8
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			}))
		})

		It("when the upload fails, prints failed uploading ui stage", func() {
			fakeCloud.CreateStemcellErr = errors.New("fake-create-error")
			_, err := manager.Upload(expectedExtractedStemcell, fakeStage)
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("fake-create-error"))

			Expect(fakeStage.PerformCalls[0].Name).To(Equal("Uploading stemcell 'fake-stemcell-name/fake-stemcell-version'"))
			Expect(fakeStage.PerformCalls[0].Error).To(HaveOccurred())
			Expect(fakeStage.PerformCalls[0].Error.Error()).To(Equal("creating stemcell (fake-stemcell-name fake-stemcell-version): fake-create-error"))
		})

		It("when the stemcellRepo save fails, logs uploading start and failure events to the eventLogger", func() {
			fs.WriteFileError = errors.New("fake-save-error")
			_, err := manager.Upload(expectedExtractedStemcell, fakeStage)
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("fake-save-error"))

			Expect(fakeStage.PerformCalls[0].Name).To(Equal("Uploading stemcell 'fake-stemcell-name/fake-stemcell-version'"))
			Expect(fakeStage.PerformCalls[0].Error).To(HaveOccurred())
			Expect(fakeStage.PerformCalls[0].Error.Error()).To(MatchRegexp("Finding existing stemcell record in repo: .*fake-save-error.*"))
		})

		Context("when the stemcell record exists in the stemcellRepo (having been previously uploaded)", func() {
			var (
				foundStemcellRecord biconfig.StemcellRecord
			)

			BeforeEach(func() {
Esempio n. 9
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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())
			})
		})

		Context("when existing versions differ from the provided release versions", 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: "3"},
				}
				err = deploymentStateService.Save(conf)
				Expect(err).ToNot(HaveOccurred())
			})

			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 existing names differ from the provided release names", 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: "other-name", Version: "2"},
				}
				err = deploymentStateService.Save(conf)
				Expect(err).ToNot(HaveOccurred())
			})

			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 a release is removed", 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"},
					ReleaseRecord{ID: "old-uuid", Name: "name3", Version: "3"},
				}
				err = deploymentStateService.Save(conf)
				Expect(err).ToNot(HaveOccurred())
			})

			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 a release is added", func() {
			BeforeEach(func() {
				conf, err := deploymentStateService.Load()
				Expect(err).ToNot(HaveOccurred())
				conf.Releases = []ReleaseRecord{
					ReleaseRecord{ID: "old-uuid", Name: "name1", Version: "1"},
				}
				err = deploymentStateService.Save(conf)
				Expect(err).ToNot(HaveOccurred())
			})

			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 config service fails to save", func() {
			BeforeEach(func() {
				fs.WriteFileError = errors.New("kaboom")
			})

			It("returns an error", func() {
				err := repo.Update([]release.Release{
					fakerelease.New("name1", "1"),
					fakerelease.New("name2", "2"),
				})
				Expect(err).To(HaveOccurred())
				Expect(err.Error()).To(ContainSubstring("kaboom"))
			})
		})
	})
}