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Idle Hot Container Freeze/Preempt Support (#733)

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* fn: freeze/unfreeze and eject idle under resource contention
This commit is contained in:
Tolga Ceylan
2018-02-07 17:21:53 -08:00
committed by GitHub
parent 105947d031
commit f27d47f2dd
8 changed files with 184 additions and 22 deletions
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22
api/agent/drivers/docker/docker.go
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@@ -212,6 +212,28 @@ func (c *cookie) Run(ctx context.Context) (drivers.WaitResult, error) {
return c.drv.run(ctx, c.id, c.task)
}
func (c *cookie) Freeze(ctx context.Context) error {
ctx, log := common.LoggerWithFields(ctx, logrus.Fields{"stack": "Freeze"})
log.WithFields(logrus.Fields{"call_id": c.id}).Debug("docker pause")
err := c.drv.docker.PauseContainer(c.id, ctx)
if err != nil {
logrus.WithError(err).WithFields(logrus.Fields{"call_id": c.id}).Error("error pausing container")
}
return err
}
func (c *cookie) Unfreeze(ctx context.Context) error {
ctx, log := common.LoggerWithFields(ctx, logrus.Fields{"stack": "Unfreeze"})
log.WithFields(logrus.Fields{"call_id": c.id}).Debug("docker unpause")
err := c.drv.docker.UnpauseContainer(c.id, ctx)
if err != nil {
logrus.WithError(err).WithFields(logrus.Fields{"call_id": c.id}).Error("error unpausing container")
}
return err
}
func (drv *DockerDriver) removeContainer(ctx context.Context, container string) error {
err := drv.docker.RemoveContainer(docker.RemoveContainerOptions{
ID: container, Force: true, RemoveVolumes: true, Context: ctx})