2616e87cad
These PR does a few things. It ensures that the freezer cgroup is joined in the systemd driver. It also provides a public api for setting the freezer state via the cgroups package. Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
40 lines
1.8 KiB
Go
40 lines
1.8 KiB
Go
package cgroups
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import (
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"errors"
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"github.com/dotcloud/docker/pkg/libcontainer/devices"
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)
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var (
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ErrNotFound = errors.New("mountpoint not found")
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)
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type FreezerState string
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const (
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Undefined FreezerState = ""
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Frozen FreezerState = "FROZEN"
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Thawed FreezerState = "THAWED"
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)
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type Cgroup struct {
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Name string `json:"name,omitempty"`
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Parent string `json:"parent,omitempty"` // name of parent cgroup or slice
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AllowAllDevices bool `json:"allow_all_devices,omitempty"` // If this is true allow access to any kind of device within the container. If false, allow access only to devices explicitly listed in the allowed_devices list.
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AllowedDevices []*devices.Device `json:"allowed_devices,omitempty"`
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Memory int64 `json:"memory,omitempty"` // Memory limit (in bytes)
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MemoryReservation int64 `json:"memory_reservation,omitempty"` // Memory reservation or soft_limit (in bytes)
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MemorySwap int64 `json:"memory_swap,omitempty"` // Total memory usage (memory + swap); set `-1' to disable swap
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CpuShares int64 `json:"cpu_shares,omitempty"` // CPU shares (relative weight vs. other containers)
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CpuQuota int64 `json:"cpu_quota,omitempty"` // CPU hardcap limit (in usecs). Allowed cpu time in a given period.
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CpuPeriod int64 `json:"cpu_period,omitempty"` // CPU period to be used for hardcapping (in usecs). 0 to use system default.
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CpusetCpus string `json:"cpuset_cpus,omitempty"` // CPU to use
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Freezer FreezerState `json:"freezer,omitempty"` // set the freeze value for the process
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Slice string `json:"slice,omitempty"` // Parent slice to use for systemd
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}
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type ActiveCgroup interface {
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Cleanup() error
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}
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