config.HostIntf = "host"
config.BridgeName = "bridge"
config.Mtu = 123
Expect(configurer.Apply(config, netnsFD)).To(Succeed())
Expect(linkConfigurer.SetMTUCalledWith.Interface).To(Equal(vethCreator.CreateReturns.Host))
Expect(linkConfigurer.SetMTUCalledWith.MTU).To(Equal(123))
})
Context("When setting the mtu fails", func() {
It("returns a wrapped error", func() {
config.HostIntf = "host"
config.BridgeName = "bridge"
config.ContainerIntf = "container"
config.Mtu = 14
linkConfigurer.SetMTUReturns = errors.New("o no")
err := configurer.Apply(config, netnsFD)
Expect(err).To(MatchError(&configure.MTUError{Cause: linkConfigurer.SetMTUReturns, Intf: vethCreator.CreateReturns.Host, MTU: 14}))
})
})
It("should move the container interface in to the container's namespace", func() {
f, err := ioutil.TempFile("", "")
Expect(err).NotTo(HaveOccurred())
config.BridgeName = "bridge"
Expect(configurer.Apply(config, netnsFD)).To(Succeed())
Expect(linkConfigurer.SetNsCalledWith.Fd).To(Equal(int(netnsFD.Fd())))
os.RemoveAll(f.Name())
err := configurer.Apply(config)
Expect(err).To(MatchError(&configure.LinkUpError{Cause: cause, Link: &net.Interface{Name: "foo"}, Role: "container"}))
})
})
It("sets the mtu", func() {
config.ContainerIntf = "foo"
config.Mtu = 1234
Expect(configurer.Apply(config)).To(Succeed())
Expect(linkApplyr.SetMTUCalledWith.Interface).To(Equal(&net.Interface{Name: "foo"}))
Expect(linkApplyr.SetMTUCalledWith.MTU).To(Equal(1234))
})
Context("when setting the mtu fails", func() {
It("returns a wrapped error", func() {
linkApplyr.SetMTUReturns = errors.New("this is NOT the right potato")
config.ContainerIntf = "foo"
config.Mtu = 1234
err := configurer.Apply(config)
Expect(err).To(MatchError(&configure.MTUError{Cause: linkApplyr.SetMTUReturns, Intf: &net.Interface{Name: "foo"}, MTU: 1234}))
})
})
It("adds a default gateway with the requested IP", func() {
config.ContainerIntf = "foo"
config.BridgeIP = net.ParseIP("2.3.4.5")
Expect(configurer.Apply(config)).To(Succeed())
Expect(linkApplyr.AddDefaultGWCalledWith.Interface).To(Equal(&net.Interface{Name: "foo"}))
Expect(linkApplyr.AddDefaultGWCalledWith.IP).To(Equal(net.ParseIP("2.3.4.5")))
})