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Add ability to set cgroups freezer

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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
This commit is contained in:
Michael Crosby 2014-04-30 16:07:12 -07:00
parent 2a711d16e0
commit 5f6fda8cfd
2 changed files with 15 additions and 4 deletions
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1
pkg/cgroups/cgroups.go
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@ -20,6 +20,7 @@ type Cgroup struct {
CpuQuota int64 `json:"cpu_quota,omitempty"` // CPU hardcap limit (in usecs). Allowed cpu time in a given period.
CpuPeriod int64 `json:"cpu_period,omitempty"` // CPU period to be used for hardcapping (in usecs). 0 to use system default.
CpusetCpus string `json:"cpuset_cpus,omitempty"` // CPU to use
Freezer string `json:"freezer,omitempty"` // set the freeze value for the process
UnitProperties [][2]string `json:"unit_properties,omitempty"` // systemd unit properties
}

16
pkg/cgroups/fs/freezer.go
View file

@ -2,25 +2,35 @@ package fs
import (
"fmt"
"github.com/dotcloud/docker/pkg/cgroups"
"io/ioutil"
"os"
"path/filepath"
"strconv"
"strings"
"github.com/dotcloud/docker/pkg/cgroups"
)
type freezerGroup struct {
}
func (s *freezerGroup) Set(d *data) error {
// we just want to join this group even though we don't set anything
if _, err := d.join("freezer"); err != nil && err != cgroups.ErrNotFound {
dir, err := d.join("freezer")
if err != nil {
if err != cgroups.ErrNotFound {
return err
}
return nil
}
if d.c.Freezer != "" {
if err := writeFile(dir, "freezer.state", d.c.Freezer); err != nil {
return err
}
}
return nil
}
func (s *freezerGroup) Remove(d *data) error {
return removePath(d.path("freezer"))
}