mirror of https://github.com/k3s-io/k3s
81 lines
2.3 KiB
Go
81 lines
2.3 KiB
Go
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// Copyright 2014 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package container defines types for sub-container events and also
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// defines an interface for container operation handlers.
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package container
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import info "github.com/google/cadvisor/info/v1"
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// ListType describes whether listing should be just for a
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// specific container or performed recursively.
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type ListType int
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const (
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ListSelf ListType = iota
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ListRecursive
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)
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type ContainerType int
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const (
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ContainerTypeRaw ContainerType = iota
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ContainerTypeDocker
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ContainerTypeRkt
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ContainerTypeSystemd
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ContainerTypeCrio
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ContainerTypeContainerd
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ContainerTypeMesos
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)
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// Interface for container operation handlers.
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type ContainerHandler interface {
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// Returns the ContainerReference
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ContainerReference() (info.ContainerReference, error)
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// Returns container's isolation spec.
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GetSpec() (info.ContainerSpec, error)
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// Returns the current stats values of the container.
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GetStats() (*info.ContainerStats, error)
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// Returns the subcontainers of this container.
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ListContainers(listType ListType) ([]info.ContainerReference, error)
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// Returns the processes inside this container.
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ListProcesses(listType ListType) ([]int, error)
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// Returns absolute cgroup path for the requested resource.
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GetCgroupPath(resource string) (string, error)
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// Returns container labels, if available.
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GetContainerLabels() map[string]string
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// Returns the container's ip address, if available
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GetContainerIPAddress() string
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// Returns whether the container still exists.
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Exists() bool
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// Cleanup frees up any resources being held like fds or go routines, etc.
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Cleanup()
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// Start starts any necessary background goroutines - must be cleaned up in Cleanup().
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// It is expected that most implementations will be a no-op.
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Start()
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// Type of handler
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Type() ContainerType
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}
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