func (p *LinuxResourcePool) acquirePoolResources(spec garden.ContainerSpec, id string, logger lager.Logger) (*linux_backend.Resources, error) {
resources := linux_backend.NewResources(0, nil, "", nil, p.externalIP)
subnet, ip, err := parseNetworkSpec(spec.Network)
if err != nil {
return nil, fmt.Errorf("create container: invalid network spec: %v", err)
}
if err := p.acquireUID(resources, spec.Privileged); err != nil {
return nil, err
}
if resources.Network, err = p.subnetPool.Acquire(subnet, ip, logger.Session("subnet-pool")); err != nil {
p.releasePoolResources(resources, logger)
return nil, err
}
return resources, nil
}
fakeCgroups = fake_cgroups_manager.New("/cgroups", "some-id")
fakeQuotaManager = new(fake_quota_manager.FakeQuotaManager)
fakeBandwidthManager = fake_bandwidth_manager.New()
fakeOomWatcher = new(fake_watcher.FakeWatcher)
var err error
containerDir, err = ioutil.TempDir("", "depot")
Expect(err).ToNot(HaveOccurred())
_, subnet, _ := net.ParseCIDR("2.3.4.0/30")
containerResources = linux_backend.NewResources(
1235,
&linux_backend.Network{
IP: net.ParseIP("1.2.3.4"),
Subnet: subnet,
},
"some-bridge",
[]uint32{},
nil,
)
})
JustBeforeEach(func() {
container = linux_container.NewLinuxContainer(
linux_backend.LinuxContainerSpec{
ID: "some-id",
ContainerPath: containerDir,
ContainerRootFSPath: "some-volume-path",
Resources: containerResources,
ContainerSpec: garden.ContainerSpec{
Handle: "some-handle",
func (p *LinuxResourcePool) Restore(snapshot io.Reader) (linux_backend.LinuxContainerSpec, error) {
var containerSnapshot linux_container.ContainerSnapshot
err := json.NewDecoder(snapshot).Decode(&containerSnapshot)
if err != nil {
return linux_backend.LinuxContainerSpec{}, err
}
id := containerSnapshot.ID
rLog := p.logger.Session("restore", lager.Data{
"id": id,
})
rLog.Debug("restoring")
resources := containerSnapshot.Resources
subnetLogger := rLog.Session("subnet-pool")
if err = p.subnetPool.Remove(resources.Network, subnetLogger); err != nil {
return linux_backend.LinuxContainerSpec{}, err
}
if err = p.bridges.Rereserve(resources.Bridge, resources.Network.Subnet, id); err != nil {
p.subnetPool.Release(resources.Network, subnetLogger)
return linux_backend.LinuxContainerSpec{}, err
}
for _, port := range resources.Ports {
err = p.portPool.Remove(port)
if err != nil {
p.subnetPool.Release(resources.Network, subnetLogger)
for _, port := range resources.Ports {
p.portPool.Release(port)
}
return linux_backend.LinuxContainerSpec{}, err
}
}
version, err := p.restoreContainerVersion(id)
if err != nil {
return linux_backend.LinuxContainerSpec{}, err
}
spec := linux_backend.LinuxContainerSpec{
ID: id,
ContainerPath: path.Join(p.depotPath, id),
ContainerRootFSPath: containerSnapshot.RootFSPath,
State: linux_backend.State(containerSnapshot.State),
Events: containerSnapshot.Events,
ContainerSpec: garden.ContainerSpec{
Handle: containerSnapshot.Handle,
GraceTime: containerSnapshot.GraceTime,
Properties: containerSnapshot.Properties,
},
Resources: linux_backend.NewResources(
resources.RootUID,
resources.Network,
resources.Bridge,
resources.Ports,
p.externalIP,
),
Limits: containerSnapshot.Limits,
NetIns: containerSnapshot.NetIns,
NetOuts: containerSnapshot.NetOuts,
Processes: containerSnapshot.Processes,
Version: version,
}
return spec, nil
}