k3s/vendor/github.com/google/cadvisor/manager/watcher/watcher.go

53 lines
1.5 KiB
Go

// Copyright 2016 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package container defines types for sub-container events and also
// defines an interface for container operation handlers.
package watcher
// SubcontainerEventType indicates an addition or deletion event.
type ContainerEventType int
const (
ContainerAdd ContainerEventType = iota
ContainerDelete
)
type ContainerWatchSource int
const (
Raw ContainerWatchSource = iota
Rkt
)
// ContainerEvent represents a
type ContainerEvent struct {
// The type of event that occurred.
EventType ContainerEventType
// The full container name of the container where the event occurred.
Name string
// The watcher that detected this change event
WatchSource ContainerWatchSource
}
type ContainerWatcher interface {
// Registers a channel to listen for events affecting subcontainers (recursively).
Start(events chan ContainerEvent) error
// Stops watching for subcontainer changes.
Stop() error
}