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Source file src/k8s.io/kubernetes/pkg/kubelet/cm/dra/types.go

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

     1  /*
     2  Copyright 2022 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 dra
    18  
    19  import (
    20  	v1 "k8s.io/api/core/v1"
    21  	"k8s.io/apimachinery/pkg/types"
    22  	kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
    23  )
    24  
    25  // Manager manages all the DRA resource plugins running on a node.
    26  type Manager interface {
    27  	// PrepareResources prepares resources for a pod.
    28  	// It communicates with the DRA resource plugin to prepare resources.
    29  	PrepareResources(pod *v1.Pod) error
    30  
    31  	// UnprepareResources calls NodeUnprepareResource GRPC from DRA plugin to unprepare pod resources
    32  	UnprepareResources(pod *v1.Pod) error
    33  
    34  	// GetResources gets a ContainerInfo object from the claimInfo cache.
    35  	// This information is used by the caller to update a container config.
    36  	GetResources(pod *v1.Pod, container *v1.Container) (*ContainerInfo, error)
    37  
    38  	// PodMightNeedToUnprepareResources returns true if the pod with the given UID
    39  	// might need to unprepare resources.
    40  	PodMightNeedToUnprepareResources(UID types.UID) bool
    41  
    42  	// GetContainerClaimInfos gets Container ClaimInfo objects
    43  	GetContainerClaimInfos(pod *v1.Pod, container *v1.Container) ([]*ClaimInfo, error)
    44  }
    45  
    46  // ContainerInfo contains information required by the runtime to consume prepared resources.
    47  type ContainerInfo struct {
    48  	// The Annotations for the container
    49  	Annotations []kubecontainer.Annotation
    50  	// CDI Devices for the container
    51  	CDIDevices []kubecontainer.CDIDevice
    52  }
    53  

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