Exemple #1
0
func libcontainerConfigToContainerSpec(config *libcontainer.Config, mi *info.MachineInfo) info.ContainerSpec {
	var spec info.ContainerSpec
	spec.HasMemory = true
	spec.Memory.Limit = math.MaxUint64
	spec.Memory.SwapLimit = math.MaxUint64
	if config.Cgroups.Memory > 0 {
		spec.Memory.Limit = uint64(config.Cgroups.Memory)
	}
	if config.Cgroups.MemorySwap > 0 {
		spec.Memory.SwapLimit = uint64(config.Cgroups.MemorySwap)
	}

	// Get CPU info
	spec.HasCpu = true
	spec.Cpu.Limit = 1024
	if config.Cgroups.CpuShares != 0 {
		spec.Cpu.Limit = uint64(config.Cgroups.CpuShares)
	}
	if config.Cgroups.CpusetCpus == "" {
		// All cores are active.
		spec.Cpu.Mask = fmt.Sprintf("0-%d", mi.NumCores-1)
	} else {
		spec.Cpu.Mask = config.Cgroups.CpusetCpus
	}

	spec.HasNetwork = true
	spec.HasDiskIo = true

	return spec
}
Exemple #2
0
func (self *rawContainerHandler) GetSpec() (info.ContainerSpec, error) {
	var spec info.ContainerSpec

	// The raw driver assumes unified hierarchy containers.

	// Get machine info.
	mi, err := self.machineInfoFactory.GetMachineInfo()
	if err != nil {
		return spec, err
	}

	// CPU.
	cpuRoot, ok := self.cgroupPaths["cpu"]
	if ok {
		if utils.FileExists(cpuRoot) {
			spec.HasCpu = true
			spec.Cpu.Limit = readInt64(cpuRoot, "cpu.shares")
		}
	}

	// Cpu Mask.
	// This will fail for non-unified hierarchies. We'll return the whole machine mask in that case.
	cpusetRoot, ok := self.cgroupPaths["cpuset"]
	if ok {
		if utils.FileExists(cpusetRoot) {
			spec.HasCpu = true
			spec.Cpu.Mask = readString(cpusetRoot, "cpuset.cpus")
			if spec.Cpu.Mask == "" {
				spec.Cpu.Mask = fmt.Sprintf("0-%d", mi.NumCores-1)
			}
		}
	}

	// Memory.
	memoryRoot, ok := self.cgroupPaths["memory"]
	if ok {
		if utils.FileExists(memoryRoot) {
			spec.HasMemory = true
			spec.Memory.Limit = readInt64(memoryRoot, "memory.limit_in_bytes")
			spec.Memory.SwapLimit = readInt64(memoryRoot, "memory.memsw.limit_in_bytes")
		}
	}

	// Fs.
	if self.name == "/" || self.externalMounts != nil {
		spec.HasFilesystem = true
	}

	//Network
	spec.HasNetwork = self.hasNetwork

	// DiskIo.
	if blkioRoot, ok := self.cgroupPaths["blkio"]; ok && utils.FileExists(blkioRoot) {
		spec.HasDiskIo = true
	}

	// Check physical network devices for root container.
	nd, err := self.GetRootNetworkDevices()
	if err != nil {
		return spec, err
	}
	if len(nd) != 0 {
		spec.HasNetwork = true
	}
	return spec, nil
}