Files
containerd/cmd/containerd-stress/worker.go
Michael Crosby 94602aea63 Add execs to stress tests
This improves the exec support so that they can run along with the
normal stress tests.  You don't have to pick exec stres or container
stress.  They both run at the same time and report the different values.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2018-01-19 13:44:54 -05:00

100 lines
2.1 KiB
Go

package main
import (
"context"
"fmt"
"path/filepath"
"strings"
"sync"
"time"
"github.com/containerd/containerd"
"github.com/containerd/containerd/cio"
"github.com/containerd/containerd/oci"
specs "github.com/opencontainers/runtime-spec/specs-go"
"github.com/sirupsen/logrus"
)
type worker struct {
id int
wg *sync.WaitGroup
count int
failures int
client *containerd.Client
image containerd.Image
spec *specs.Spec
commit string
}
func (w *worker) run(ctx, tctx context.Context) {
defer func() {
w.wg.Done()
logrus.Infof("worker %d finished", w.id)
}()
for {
select {
case <-tctx.Done():
return
default:
}
w.count++
id := w.getID()
logrus.Debugf("starting container %s", id)
start := time.Now()
if err := w.runContainer(ctx, id); err != nil {
if err != context.DeadlineExceeded ||
!strings.Contains(err.Error(), context.DeadlineExceeded.Error()) {
w.failures++
logrus.WithError(err).Errorf("running container %s", id)
errCounter.WithValues(err.Error()).Inc()
}
continue
}
// only log times are success so we don't scew the results from failures that go really fast
ct.WithValues(w.commit).UpdateSince(start)
}
}
func (w *worker) runContainer(ctx context.Context, id string) error {
// fix up cgroups path for a default config
w.spec.Linux.CgroupsPath = filepath.Join("/", "stress", id)
c, err := w.client.NewContainer(ctx, id,
containerd.WithNewSnapshot(id, w.image),
containerd.WithSpec(w.spec, oci.WithUsername("games")),
)
if err != nil {
return err
}
defer c.Delete(ctx, containerd.WithSnapshotCleanup)
task, err := c.NewTask(ctx, cio.NullIO)
if err != nil {
return err
}
defer task.Delete(ctx, containerd.WithProcessKill)
statusC, err := task.Wait(ctx)
if err != nil {
return err
}
if err := task.Start(ctx); err != nil {
return err
}
status := <-statusC
_, _, err = status.Result()
if err != nil {
if err == context.DeadlineExceeded || err == context.Canceled {
return nil
}
w.failures++
}
return nil
}
func (w *worker) getID() string {
return fmt.Sprintf("%d-%d", w.id, w.count)
}