github.com/kubewharf/katalyst-core@v0.5.3/pkg/scheduler/util/resource.go (about)

     1  /*
     2  Copyright 2022 The Katalyst 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 util
    18  
    19  import (
    20  	"fmt"
    21  
    22  	"github.com/kubewharf/katalyst-core/pkg/consts"
    23  
    24  	v1 "k8s.io/api/core/v1"
    25  	pluginapi "k8s.io/kubelet/pkg/apis/resourceplugin/v1alpha1"
    26  )
    27  
    28  func IsRequestFullCPU(pod *v1.Pod) bool {
    29  	for _, initContainer := range pod.Spec.InitContainers {
    30  		for resName, resInfo := range initContainer.Resources.Requests {
    31  			if resName == v1.ResourceCPU {
    32  				if resInfo.MilliValue()%1000 != 0 {
    33  					return false
    34  				}
    35  			}
    36  		}
    37  	}
    38  	for _, container := range pod.Spec.Containers {
    39  		for resName, resInfo := range container.Resources.Requests {
    40  			if resName == v1.ResourceCPU {
    41  				if resInfo.MilliValue()%1000 != 0 {
    42  					return false
    43  				}
    44  			}
    45  		}
    46  	}
    47  	return true
    48  }
    49  
    50  func GetPodEffectiveRequest(pod *v1.Pod) v1.ResourceList {
    51  	resources := make(v1.ResourceList)
    52  
    53  	for _, container := range pod.Spec.Containers {
    54  		for name, quantity := range container.Resources.Requests {
    55  			if q, ok := resources[name]; ok {
    56  				quantity.Add(q)
    57  			}
    58  			resources[name] = quantity
    59  		}
    60  	}
    61  	for _, container := range pod.Spec.InitContainers {
    62  		for name, quantity := range container.Resources.Requests {
    63  			if q, ok := resources[name]; ok && quantity.Cmp(q) <= 0 {
    64  				continue
    65  			}
    66  			resources[name] = quantity
    67  		}
    68  	}
    69  
    70  	return resources
    71  }
    72  
    73  func GetContainerTypeAndIndex(pod *v1.Pod, container *v1.Container) (containerType pluginapi.ContainerType, containerIndex uint64, err error) {
    74  	if pod == nil || container == nil {
    75  		err = fmt.Errorf("got nil pod: %v or container: %v", pod, container)
    76  		return
    77  	}
    78  
    79  	foundContainer := false
    80  
    81  	for i, initContainer := range pod.Spec.InitContainers {
    82  		if container.Name == initContainer.Name {
    83  			foundContainer = true
    84  			containerType = pluginapi.ContainerType_INIT
    85  			containerIndex = uint64(i)
    86  			break
    87  		}
    88  	}
    89  
    90  	if !foundContainer {
    91  		mainContainerName := pod.Annotations[consts.MainContainerNameAnnotationKey]
    92  
    93  		if mainContainerName == "" && len(pod.Spec.Containers) > 0 {
    94  			mainContainerName = pod.Spec.Containers[0].Name
    95  		}
    96  
    97  		for i, appContainer := range pod.Spec.Containers {
    98  			if container.Name == appContainer.Name {
    99  				foundContainer = true
   100  
   101  				if container.Name == mainContainerName {
   102  					containerType = pluginapi.ContainerType_MAIN
   103  				} else {
   104  					containerType = pluginapi.ContainerType_SIDECAR
   105  				}
   106  
   107  				containerIndex = uint64(i)
   108  				break
   109  			}
   110  		}
   111  	}
   112  
   113  	if !foundContainer {
   114  		err = fmt.Errorf("GetContainerTypeAndIndex doesn't find container: %s in pod: %s/%s", container.Name, pod.Namespace, pod.Name)
   115  	}
   116  
   117  	return
   118  }