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87aaf4c0ac
This change add a container manager inside the dockershim to move docker daemon and associated processes to a specified cgroup. The original kubelet container manager will continue checking the name of the cgroup, so that kubelet know how to report runtime stats.
66 lines
2.0 KiB
Go
66 lines
2.0 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package cm
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import (
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"k8s.io/kubernetes/pkg/api"
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)
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// Manages the containers running on a machine.
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type ContainerManager interface {
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// Runs the container manager's housekeeping.
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// - Ensures that the Docker daemon is in a container.
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// - Creates the system container where all non-containerized processes run.
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Start(*api.Node) error
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// Returns resources allocated to system cgroups in the machine.
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// These cgroups include the system and Kubernetes services.
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SystemCgroupsLimit() api.ResourceList
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// Returns a NodeConfig that is being used by the container manager.
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GetNodeConfig() NodeConfig
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// Returns internal Status.
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Status() Status
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// NewPodContainerManager is a factory method which returns a podContainerManager object
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// Returns a noop implementation if qos cgroup hierarchy is not enabled
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NewPodContainerManager() PodContainerManager
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// GetMountedSubsystems returns the mounted cgroup subsytems on the node
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GetMountedSubsystems() *CgroupSubsystems
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// GetQOSContainersInfo returns the names of top level QoS containers
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GetQOSContainersInfo() QOSContainersInfo
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}
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type NodeConfig struct {
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RuntimeCgroupsName string
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SystemCgroupsName string
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KubeletCgroupsName string
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ContainerRuntime string
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CgroupsPerQOS bool
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CgroupRoot string
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ProtectKernelDefaults bool
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RuntimeIntegrationType string
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}
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type Status struct {
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// Any soft requirements that were unsatisfied.
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SoftRequirements error
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}
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