github.com/shishir-a412ed/docker@v1.3.2-0.20180103180333-fda904911d87/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  	r.CPU.Period = &period
    34  	r.CPU.Quota = &quota
    35  
    36  	r.Memory = &specs.LinuxMemory{
    37  		Limit:       &resources.Memory,
    38  		Reservation: &resources.MemoryReservation,
    39  		Kernel:      &resources.KernelMemory,
    40  	}
    41  
    42  	if resources.MemorySwap > 0 {
    43  		r.Memory.Swap = &resources.MemorySwap
    44  	}
    45  
    46  	return &r
    47  }