func (p *provider) ProvideContainer(spec linux_backend.LinuxContainerSpec) linux_backend.Container {
cgroupReader := &cgroups_manager.LinuxCgroupReader{
Path: p.sysconfig.CgroupNodeFilePath,
}
cgroupsManager := cgroups_manager.New(p.sysconfig.CgroupPath, spec.ID, cgroupReader)
oomWatcher := linux_container.NewOomNotifier(
p.runner, spec.ContainerPath, cgroupsManager,
)
return linux_container.NewLinuxContainer(
spec,
p.portPool,
p.runner,
cgroupsManager,
p.quotaManager,
bandwidth_manager.New(spec.ContainerPath, spec.ID, p.runner),
process_tracker.New(spec.ContainerPath, p.runner),
p.ProvideFilter(spec.ID),
p.ipTablesMgr,
devices.Link{Name: p.sysconfig.NetworkInterfacePrefix + spec.ID + "-0"},
oomWatcher,
p.log.Session("container", lager.Data{"handle": spec.Handle}),
)
}
cgroupsPath = path.Join("path", "to", "cgroups")
cgroupsManager = fake_cgroups_manager.New(cgroupsPath, "123456")
containerPath = path.Join("path", "to", "container")
oomChan = make(chan struct{})
oNoom = func() {
close(oomChan)
}
})
JustBeforeEach(func() {
oomNotifier = linux_container.NewOomNotifier(
runner,
containerPath,
cgroupsManager,
)
})
Describe("Watch", func() {
It("calls the oom binary", func() {
Expect(oomNotifier.Watch(oNoom)).To(Succeed())
Expect(runner).To(HaveStartedExecuting(
fake_command_runner.CommandSpec{
Path: path.Join(containerPath, "bin", "oom"),
Args: []string{path.Join(cgroupsPath, "memory", "instance-123456")},
},
))