github.com/rhatdan/docker@v0.7.7-0.20180119204836-47a0dcbcd20a/daemon/update_linux.go (about)

     1  package daemon
     2  
     3  import (
     4  	"time"
     5  
     6  	"github.com/docker/docker/api/types/container"
     7  	"github.com/docker/docker/libcontainerd"
     8  	specs "github.com/opencontainers/runtime-spec/specs-go"
     9  )
    10  
    11  func toContainerdResources(resources container.Resources) *libcontainerd.Resources {
    12  	var r libcontainerd.Resources
    13  
    14  	r.BlockIO = &specs.LinuxBlockIO{
    15  		Weight: &resources.BlkioWeight,
    16  	}
    17  
    18  	shares := uint64(resources.CPUShares)
    19  	r.CPU = &specs.LinuxCPU{
    20  		Shares: &shares,
    21  		Cpus:   resources.CpusetCpus,
    22  		Mems:   resources.CpusetMems,
    23  	}
    24  
    25  	var (
    26  		period uint64
    27  		quota  int64
    28  	)
    29  	if resources.NanoCPUs != 0 {
    30  		period = uint64(100 * time.Millisecond / time.Microsecond)
    31  		quota = resources.NanoCPUs * int64(period) / 1e9
    32  	}
    33  	if quota == 0 && resources.CPUQuota != 0 {
    34  		quota = resources.CPUQuota
    35  	}
    36  	if period == 0 && resources.CPUPeriod != 0 {
    37  		period = uint64(resources.CPUPeriod)
    38  	}
    39  
    40  	r.CPU.Period = &period
    41  	r.CPU.Quota = &quota
    42  
    43  	r.Memory = &specs.LinuxMemory{
    44  		Limit:       &resources.Memory,
    45  		Reservation: &resources.MemoryReservation,
    46  		Kernel:      &resources.KernelMemory,
    47  	}
    48  
    49  	if resources.MemorySwap > 0 {
    50  		r.Memory.Swap = &resources.MemorySwap
    51  	}
    52  
    53  	return &r
    54  }