internal_container_lifecycle.go

Documentation: k8s.io/kubernetes/pkg/kubelet/cm

     1  /*
     2  Copyright 2017 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package cm
    18  
    19  import (
    20  	"k8s.io/api/core/v1"
    21  	runtimeapi "k8s.io/cri-api/pkg/apis/runtime/v1"
    22  	"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager"
    23  	"k8s.io/kubernetes/pkg/kubelet/cm/memorymanager"
    24  	"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager"
    25  )
    26  
    27  type InternalContainerLifecycle interface {
    28  	PreCreateContainer(pod *v1.Pod, container *v1.Container, containerConfig *runtimeapi.ContainerConfig) error
    29  	PreStartContainer(pod *v1.Pod, container *v1.Container, containerID string) error
    30  	PostStopContainer(containerID string) error
    31  }
    32  
    33  // Implements InternalContainerLifecycle interface.
    34  type internalContainerLifecycleImpl struct {
    35  	cpuManager      cpumanager.Manager
    36  	memoryManager   memorymanager.Manager
    37  	topologyManager topologymanager.Manager
    38  }
    39  
    40  func (i *internalContainerLifecycleImpl) PreStartContainer(pod *v1.Pod, container *v1.Container, containerID string) error {
    41  	if i.cpuManager != nil {
    42  		i.cpuManager.AddContainer(pod, container, containerID)
    43  	}
    44  
    45  	if i.memoryManager != nil {
    46  		i.memoryManager.AddContainer(pod, container, containerID)
    47  	}
    48  
    49  	i.topologyManager.AddContainer(pod, container, containerID)
    50  
    51  	return nil
    52  }
    53  
    54  func (i *internalContainerLifecycleImpl) PostStopContainer(containerID string) error {
    55  	return i.topologyManager.RemoveContainer(containerID)
    56  }
    57
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