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
}
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.cgroupSubsystems.mountPoints["cpu"]
if ok {
cpuRoot = path.Join(cpuRoot, self.name)
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.cgroupSubsystems.mountPoints["cpuset"]
if ok {
cpusetRoot = path.Join(cpusetRoot, self.name)
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.cgroupSubsystems.mountPoints["memory"]
if ok {
memoryRoot = path.Join(memoryRoot, self.name)
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
if self.networkInterface != nil {
spec.HasNetwork = true
}
return spec, nil
}
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
}