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events: move types into service package

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When using events, it was found to be fairly unwieldy with a number of
extra packages. For the most part, when interacting with the events
service, we want types of the same version of the service. This has been
accomplished by moving all events types into the events package.

In addition, several fixes to the way events are marshaled have been
included. Specifically, we defer to the protobuf type registration
system to assemble events and type urls, with a little bit sheen on top
of add a containerd.io oriented namespace.

This has resulted in much cleaner event consumption and has removed the
reliance on error prone type urls, in favor of concrete types.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
This commit is contained in:
Stephen J Day
2017-06-22 19:12:25 -07:00
parent c4da4ed393
commit c05be46348
32 changed files with 642 additions and 900 deletions
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18
task.go
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@@ -13,11 +13,10 @@ import (
"github.com/containerd/containerd/api/services/containers/v1"
eventsapi "github.com/containerd/containerd/api/services/events/v1"
"github.com/containerd/containerd/api/services/tasks/v1"
"github.com/containerd/containerd/api/types/event"
tasktypes "github.com/containerd/containerd/api/types/task"
"github.com/containerd/containerd/content"
"github.com/containerd/containerd/events"
"github.com/containerd/containerd/rootfs"
"github.com/gogo/protobuf/proto"
"github.com/opencontainers/image-spec/specs-go/v1"
specs "github.com/opencontainers/runtime-spec/specs-go"
)
@@ -143,24 +142,27 @@ func (t *task) Status(ctx context.Context) (TaskStatus, error) {
// Wait is a blocking call that will wait for the task to exit and return the exit status
func (t *task) Wait(ctx context.Context) (uint32, error) {
// TODO (ehazlett): add filtering for specific event
events, err := t.client.EventService().Stream(ctx, &eventsapi.StreamEventsRequest{})
eventstream, err := t.client.EventService().Stream(ctx, &eventsapi.StreamEventsRequest{})
if err != nil {
return UnknownExitStatus, err
}
<-t.pidSync
evloop:
for {
evt, err := events.Recv()
evt, err := eventstream.Recv()
if err != nil {
return UnknownExitStatus, err
}
if evt.Event.TypeUrl == "types.containerd.io/containerd.v1.types.event.RuntimeEvent" {
e := &event.RuntimeEvent{}
if err := proto.Unmarshal(evt.Event.Value, e); err != nil {
switch {
case events.Is(evt.Event, &eventsapi.RuntimeEvent{}):
var e eventsapi.RuntimeEvent
if err := events.UnmarshalEvent(evt.Event, &e); err != nil {
return UnknownExitStatus, err
}
if e.Type != tasktypes.Event_EXIT {
continue
continue evloop
}
if e.ID == t.containerID && e.Pid == t.pid {