43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
package executor
|
|
|
|
import (
|
|
"os"
|
|
"sync"
|
|
|
|
dstructs "github.com/hashicorp/nomad/client/driver/structs"
|
|
cgroupConfig "github.com/opencontainers/runc/libcontainer/configs"
|
|
)
|
|
|
|
// resourceContainerContext is a platform-specific struct for managing a
|
|
// resource container. In the case of Linux, this is used to control Cgroups.
|
|
type resourceContainerContext struct {
|
|
groups *cgroupConfig.Cgroup
|
|
cgPaths map[string]string
|
|
cgLock sync.Mutex
|
|
}
|
|
|
|
// clientCleanup remoevs this host's Cgroup from the Nomad Client's context
|
|
func clientCleanup(ic *dstructs.IsolationConfig, pid int) error {
|
|
if err := DestroyCgroup(ic.Cgroup, ic.CgroupPaths, pid); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// cleanup removes this host's Cgroup from within an Executor's context
|
|
func (rc *resourceContainerContext) executorCleanup() error {
|
|
rc.cgLock.Lock()
|
|
defer rc.cgLock.Unlock()
|
|
if err := DestroyCgroup(rc.groups, rc.cgPaths, os.Getpid()); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (rc *resourceContainerContext) getIsolationConfig() *dstructs.IsolationConfig {
|
|
return &dstructs.IsolationConfig{
|
|
Cgroup: rc.groups,
|
|
CgroupPaths: rc.cgPaths,
|
|
}
|
|
}
|