containerd/metrics/cgroups/cgroups.go
Michael Crosby 7cc1b64bd8 Add checkpoint and restore
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Update go-runc to 49b2a02ec1ed3e4ae52d30b54a291b75

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Add shim to restore creation

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Keep checkpoint path in service

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Add C/R to non-shim build

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Checkpoint rw and image

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Pause container on bind checkpoints

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Return dump.log in error on checkpoint failure

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Pause container for checkpoint

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Update runc to 639454475cb9c8b861cc599f8bcd5c8c790ae402

For checkpoint into to work you need runc version
639454475cb9c8b861cc599f8bcd5c8c790ae402 + and criu 3.0 as this is what
I have been testing with.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Move restore behind create calls

This remove the restore RPCs in favor of providing the checkpoint
information to the `Create` calls of a container.  If provided, the
container will be created/restored from the checkpoint instead of an
existing container.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Regen protos after rebase

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2017-05-22 15:34:45 -07:00

78 lines
1.6 KiB
Go

package cgroups
import (
"time"
"github.com/containerd/cgroups"
"github.com/containerd/cgroups/prometheus"
"github.com/containerd/containerd/plugin"
metrics "github.com/docker/go-metrics"
"golang.org/x/net/context"
)
const name = "cgroups"
func init() {
plugin.Register(name, &plugin.Registration{
Type: plugin.ContainerMonitorPlugin,
Init: New,
})
}
func New(ic *plugin.InitContext) (interface{}, error) {
var (
ns = metrics.NewNamespace("container", "", nil)
collector = prometheus.New(ns)
)
oom, err := prometheus.NewOOMCollector(ns)
if err != nil {
return nil, err
}
metrics.Register(ns)
return &cgroupsMonitor{
collector: collector,
oom: oom,
context: ic.Context,
}, nil
}
type cgroupsMonitor struct {
collector *prometheus.Collector
oom *prometheus.OOMCollector
context context.Context
events chan<- *plugin.Event
}
func (m *cgroupsMonitor) Monitor(c plugin.Container) error {
id := c.Info().ID
state, err := c.State(m.context)
if err != nil {
return err
}
cg, err := cgroups.Load(cgroups.V1, cgroups.PidPath(int(state.Pid())))
if err != nil {
return err
}
if err := m.collector.Add(id, cg); err != nil {
return err
}
return m.oom.Add(id, cg, m.trigger)
}
func (m *cgroupsMonitor) Stop(c plugin.Container) error {
m.collector.Remove(c.Info().ID)
return nil
}
func (m *cgroupsMonitor) Events(events chan<- *plugin.Event) {
m.events = events
}
func (m *cgroupsMonitor) trigger(id string, cg cgroups.Cgroup) {
m.events <- &plugin.Event{
Timestamp: time.Now(),
Type: plugin.OOMEvent,
ID: id,
}
}