func (s *TypesSuite) TestSortNetworkConfigsByInterfaceName(c *gc.C) {
expectedLength := len(expectedSortedNetworkConfigsByInterfaceName)
jsonExpected := s.networkConfigsAsJSON(c, expectedSortedNetworkConfigsByInterfaceName)
for i := 0; i < expectedLength; i++ {
shuffledInput := shuffleNetworkConfigs(expectedSortedNetworkConfigsByInterfaceName)
result := networkingcommon.SortNetworkConfigsByInterfaceName(shuffledInput)
c.Assert(result, gc.HasLen, expectedLength)
jsonResult := s.networkConfigsAsJSON(c, result)
c.Check(jsonResult, gc.Equals, jsonExpected)
}
}
func (p *ProvisionerAPI) prepareOrGetContainerInterfaceInfo(args params.Entities, maintain bool) (params.MachineNetworkConfigResults, error) {
result := params.MachineNetworkConfigResults{
Results: make([]params.MachineNetworkConfigResult, len(args.Entities)),
}
netEnviron, hostMachine, canAccess, err := p.prepareContainerAccessEnvironment()
if err != nil {
return result, errors.Trace(err)
}
instId, err := hostMachine.InstanceId()
if errors.IsNotProvisioned(err) {
err = errors.NotProvisionedf("cannot prepare container network config: host machine %q", hostMachine)
return result, err
} else if err != nil {
return result, errors.Trace(err)
}
for i, entity := range args.Entities {
tag, err := names.ParseMachineTag(entity.Tag)
if err != nil {
result.Results[i].Error = common.ServerError(err)
continue
}
// The auth function (canAccess) checks that the machine is a
// top level machine (we filter those out next) or that the
// machine has the host as a parent.
container, err := p.getMachine(canAccess, tag)
if err != nil {
result.Results[i].Error = common.ServerError(err)
continue
} else if !container.IsContainer() {
err = errors.Errorf("cannot prepare network config for %q: not a container", tag)
result.Results[i].Error = common.ServerError(err)
continue
} else if ciid, cerr := container.InstanceId(); maintain == true && cerr == nil {
// Since we want to configure and create NICs on the
// container before it starts, it must also be not
// provisioned yet.
err = errors.Errorf("container %q already provisioned as %q", container, ciid)
result.Results[i].Error = common.ServerError(err)
continue
} else if cerr != nil && !errors.IsNotProvisioned(cerr) {
// Any other error needs to be reported.
result.Results[i].Error = common.ServerError(cerr)
continue
}
if err := hostMachine.SetContainerLinkLayerDevices(container); err != nil {
result.Results[i].Error = common.ServerError(err)
continue
}
containerDevices, err := container.AllLinkLayerDevices()
if err != nil {
result.Results[i].Error = common.ServerError(err)
continue
}
preparedInfo := make([]network.InterfaceInfo, len(containerDevices))
preparedOK := true
for j, device := range containerDevices {
parentDevice, err := device.ParentDevice()
if err != nil || parentDevice == nil {
err = errors.Errorf(
"cannot get parent %q of container device %q: %v",
device.ParentName(), device.Name(), err,
)
result.Results[i].Error = common.ServerError(err)
preparedOK = false
break
}
parentAddrs, err := parentDevice.Addresses()
if err != nil {
result.Results[i].Error = common.ServerError(err)
preparedOK = false
break
}
if len(parentAddrs) == 0 {
err = errors.Errorf("host machine device %q has no addresses", parentDevice.Name())
result.Results[i].Error = common.ServerError(err)
preparedOK = false
break
}
firstAddress := parentAddrs[0]
parentDeviceSubnet, err := firstAddress.Subnet()
if err != nil || parentDeviceSubnet == nil {
err = errors.Errorf(
"cannot get subnet %q used by address %q of host machine device %q: %v",
firstAddress.SubnetID(), firstAddress.Value(), parentDevice.Name(), err,
)
result.Results[i].Error = common.ServerError(err)
preparedOK = false
break
}
info := network.InterfaceInfo{
InterfaceName: device.Name(),
MACAddress: device.MACAddress(),
ConfigType: network.ConfigStatic,
InterfaceType: network.InterfaceType(device.Type()),
NoAutoStart: !device.IsAutoStart(),
Disabled: !device.IsUp(),
MTU: int(device.MTU()),
CIDR: parentDeviceSubnet.CIDR(),
ProviderSubnetId: parentDeviceSubnet.ProviderId(),
VLANTag: parentDeviceSubnet.VLANTag(),
ParentInterfaceName: parentDevice.Name(),
}
logger.Tracef("prepared info for container interface %q: %+v", info.InterfaceName, info)
preparedOK = true
preparedInfo[j] = info
}
if !preparedOK {
// Error result is already set.
continue
}
allocatedInfo, err := netEnviron.AllocateContainerAddresses(instId, preparedInfo)
if err != nil {
result.Results[i].Error = common.ServerError(err)
continue
}
logger.Debugf("got allocated info from provider: %+v", allocatedInfo)
allocatedConfig := networkingcommon.NetworkConfigFromInterfaceInfo(allocatedInfo)
sortedAllocatedConfig := networkingcommon.SortNetworkConfigsByInterfaceName(allocatedConfig)
logger.Tracef("allocated sorted network config: %+v", sortedAllocatedConfig)
result.Results[i].Config = sortedAllocatedConfig
}
return result, nil
}