func libcontainerConfigToContainerSpec(config *libcontainer.Config, mi *info.MachineInfo) *info.ContainerSpec {
spec := new(info.ContainerSpec)
spec.Memory = new(info.MemorySpec)
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.Cpu = new(info.CpuSpec)
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
}
return spec
}
func libcontainerConfigToContainerSpec(config *libcontainer.Container, mi *info.MachineInfo) *info.ContainerSpec {
spec := new(info.ContainerSpec)
spec.Memory = new(info.MemorySpec)
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.Cpu = new(info.CpuSpec)
spec.Cpu.Limit = 1024
if config.Cgroups.CpuShares != 0 {
spec.Cpu.Limit = uint64(config.Cgroups.CpuShares)
}
n := (mi.NumCores + 63) / 64
spec.Cpu.Mask.Data = make([]uint64, n)
for i := 0; i < n; i++ {
spec.Cpu.Mask.Data[i] = math.MaxUint64
}
// TODO(vmarmol): Get CPUs from config.Cgroups.CpusetCpus
return spec
}
func dockerConfigToContainerSpec(config *dockerContainerSpec, mi *info.MachineInfo) *info.ContainerSpec {
spec := new(info.ContainerSpec)
spec.Memory = new(info.MemorySpec)
spec.Memory.Limit = math.MaxUint64
spec.Memory.SwapLimit = math.MaxUint64
if config.Config.Memory > 0 {
spec.Memory.Limit = uint64(config.Config.Memory)
}
if config.Config.MemorySwap > 0 {
spec.Memory.SwapLimit = uint64(config.Config.MemorySwap - config.Config.Memory)
}
if mi != nil {
spec.Cpu = new(info.CpuSpec)
spec.Cpu.Limit = math.MaxUint64
n := mi.NumCores / 64
if mi.NumCores%64 > 0 {
n++
}
spec.Cpu.Mask.Data = make([]uint64, n)
for i := 0; i < n; i++ {
spec.Cpu.Mask.Data[i] = math.MaxUint64
}
}
return spec
}
func (self *rawContainerHandler) GetSpec() (*info.ContainerSpec, error) {
spec := new(info.ContainerSpec)
// The raw driver assumes unified hierarchy containers.
// Get machine info.
mi, err := self.machineInfoFactory.GetMachineInfo()
if err != nil {
return nil, err
}
// CPU.
cpuRoot, ok := self.cgroupSubsystems.mountPoints["cpu"]
if ok {
cpuRoot = path.Join(cpuRoot, self.name)
if utils.FileExists(cpuRoot) {
spec.Cpu = new(info.CpuSpec)
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 {
if spec.Cpu == nil {
spec.Cpu = new(info.CpuSpec)
}
cpusetRoot = path.Join(cpusetRoot, self.name)
if utils.FileExists(cpusetRoot) {
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.Memory = new(info.MemorySpec)
spec.Memory.Limit = readInt64(memoryRoot, "memory.limit_in_bytes")
spec.Memory.SwapLimit = readInt64(memoryRoot, "memory.memsw.limit_in_bytes")
}
}
return spec, nil
}
func (self *rawContainerHandler) GetSpec() (*info.ContainerSpec, error) {
spec := new(info.ContainerSpec)
// The raw driver assumes unified hierarchy containers.
// CPU.
cpuRoot, ok := self.cgroupSubsystems.mountPoints["cpu"]
if ok {
cpuRoot = filepath.Join(cpuRoot, self.name)
if utils.FileExists(cpuRoot) {
// Get machine info.
mi, err := self.machineInfoFactory.GetMachineInfo()
if err != nil {
return nil, err
}
spec.Cpu = new(info.CpuSpec)
spec.Cpu.Limit = readInt64(cpuRoot, "cpu.shares")
// TODO(vmarmol): Get CPUs from config.Cgroups.CpusetCpus
n := (mi.NumCores + 63) / 64
spec.Cpu.Mask.Data = make([]uint64, n)
for i := 0; i < n; i++ {
spec.Cpu.Mask.Data[i] = math.MaxUint64
}
}
}
// Memory.
memoryRoot, ok := self.cgroupSubsystems.mountPoints["memory"]
if ok {
memoryRoot = filepath.Join(memoryRoot, self.name)
if utils.FileExists(memoryRoot) {
spec.Memory = new(info.MemorySpec)
spec.Memory.Limit = readInt64(memoryRoot, "memory.limit_in_bytes")
spec.Memory.SwapLimit = readInt64(memoryRoot, "memory.limit_in_bytes")
}
}
return spec, nil
}
func protobufToContainerSpec(pspec *ContainerSpec) *info.ContainerSpec {
ret := new(info.ContainerSpec)
if pspec.GetCpu() != nil {
cpuspec := new(info.CpuSpec)
cpuspec.Limit = pspec.GetCpu().GetLimit()
cpuspec.MaxLimit = pspec.GetCpu().GetMaxLimit()
if pspec.GetCpu().GetMask() != nil {
cpuspec.Mask.Data = pspec.GetCpu().GetMask().GetData()
}
ret.Cpu = cpuspec
}
if pspec.GetMemory() != nil {
pmem := pspec.GetMemory()
memspec := new(info.MemorySpec)
memspec.Limit = uint64(pmem.GetLimit())
memspec.Reservation = uint64(pmem.GetReservation())
memspec.SwapLimit = uint64(pmem.GetSwapLimit())
ret.Memory = memspec
}
return ret
}