/
data.go
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/
data.go
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package handlers
import (
"context"
"sort"
"github.com/alibaba/kubedl/pkg/util/resource_utils"
"k8s.io/apimachinery/pkg/api/resource"
"k8s.io/apimachinery/pkg/fields"
corev1 "k8s.io/api/core/v1"
resources "k8s.io/apiserver/pkg/quota/v1"
"k8s.io/klog"
"sigs.k8s.io/controller-runtime/pkg/client"
clientmgr "github.com/alibaba/kubedl/console/backend/pkg/client"
"github.com/alibaba/kubedl/console/backend/pkg/model"
)
const (
ResourceGPU = "nvidia.com/gpu"
IndexNodeName = "spec.nodeName"
IndexPhase = "status.phase"
GPUType = "aliyun.accelerator/nvidia_name"
)
func NewDataHandler() *DataHandler {
clientmgr.IndexField(&corev1.Pod{}, IndexNodeName, func(obj client.Object) []string {
pod, ok := obj.(*corev1.Pod)
if !ok {
return []string{}
}
if len(pod.Spec.NodeName) == 0 {
return []string{}
}
return []string{pod.Spec.NodeName}
})
clientmgr.IndexField(&corev1.Pod{}, IndexPhase, func(obj client.Object) []string {
pod, ok := obj.(*corev1.Pod)
if !ok {
return []string{}
}
return []string{string(pod.Status.Phase)}
})
return &DataHandler{client: clientmgr.GetCtrlClient()}
}
type DataHandler struct {
client client.Client
}
// GetClusterTotalResource sum all nodes allocatable resource(cpu/memory/gpu)
func (ov *DataHandler) GetClusterTotalResource() (model.ClusterTotalResource, error) {
nodes := &corev1.NodeList{}
err := ov.client.List(context.TODO(), nodes)
if err != nil {
klog.Errorf("GetClusterTotalResource Failed to list nodes")
return model.ClusterTotalResource{}, err
}
totalResource := corev1.ResourceList{}
for _, node := range nodes.Items {
allocatable := node.Status.Allocatable.DeepCopy()
totalResource = resources.Add(totalResource, allocatable)
}
clusterTotal := model.ClusterTotalResource{
TotalCPU: totalResource.Cpu().MilliValue(),
TotalMemory: totalResource.Memory().Value(),
TotalGPU: getGpu(totalResource).MilliValue()}
return clusterTotal, nil
}
// GetClusterRequestResource sum all pods request resource(cpu/memory/gpu)
func (ov *DataHandler) GetClusterRequestResource(podPhase string) (model.ClusterRequestResource, error) {
namespaces := &corev1.NamespaceList{}
err := ov.client.List(context.TODO(), namespaces)
if err != nil {
klog.Errorf("GetClusterRequestResource Failed to list namespaces")
return model.ClusterRequestResource{}, err
}
totalRequest := corev1.ResourceList{}
for _, namespace := range namespaces.Items {
// query pod list in namespace
podList := &corev1.PodList{}
err = ov.client.List(context.TODO(), podList, &client.ListOptions{
FieldSelector: fields.OneTermEqualSelector(IndexPhase, podPhase),
Namespace: namespace.Name})
if err != nil {
klog.Errorf("GetClusterRequestResource Failed to get pod list on node: %v error: %v", namespace.Name, err)
return model.ClusterRequestResource{}, err
}
totalRequest = resources.Add(totalRequest, getPodRequest(podList, corev1.PodPhase(podPhase)))
}
clusterRequest := model.ClusterRequestResource{
RequestCPU: totalRequest.Cpu().MilliValue(),
RequestMemory: totalRequest.Memory().Value(),
RequestGPU: getGpu(totalRequest).MilliValue()}
return clusterRequest, nil
}
// GetClusterNodeInfos sum all pods allocatable and request resource(cpu/memory/gpu) in a node
func (ov *DataHandler) GetClusterNodeInfos() (model.ClusterNodeInfoList, error) {
nodes := &corev1.NodeList{}
err := ov.client.List(context.TODO(), nodes)
if err != nil {
klog.Errorf("GetClusterTotalResource Failed to list nodes")
return model.ClusterNodeInfoList{}, err
}
var clusterNodeInfos []model.ClusterNodeInfo
for _, node := range nodes.Items {
// query pod list in node
podList := &corev1.PodList{}
err = ov.client.List(context.TODO(), podList, &client.ListOptions{
FieldSelector: fields.OneTermEqualSelector(IndexNodeName, node.Name),
})
if err != nil {
klog.Errorf("GetClusterNodeInfos Failed to get pod list on node: %v error: %v", node.Name, err)
return model.ClusterNodeInfoList{}, err
}
podsRequest := getPodRequest(podList, corev1.PodRunning)
allocatable := node.Status.Allocatable.DeepCopy()
clusterNodeInfo := model.ClusterNodeInfo{
NodeName: node.Name,
InstanceType: getInstanceType(&node),
GPUType: node.Labels[GPUType],
TotalCPU: allocatable.Cpu().MilliValue(),
TotalMemory: allocatable.Memory().Value(),
TotalGPU: getGpu(allocatable).MilliValue(),
RequestCPU: podsRequest.Cpu().MilliValue(),
RequestMemory: podsRequest.Memory().Value(),
RequestGPU: getGpu(podsRequest).MilliValue(),
}
clusterNodeInfos = append(clusterNodeInfos, clusterNodeInfo)
}
// sort by node name
sort.SliceStable(clusterNodeInfos, func(i, j int) bool {
return clusterNodeInfos[i].NodeName > clusterNodeInfos[j].NodeName
})
return model.ClusterNodeInfoList{Items: clusterNodeInfos}, nil
}
// sum podlist request
func getPodRequest(podList *corev1.PodList, phase corev1.PodPhase) corev1.ResourceList {
totalRequest := corev1.ResourceList{}
for _, pod := range podList.Items {
if pod.Status.Phase != phase {
continue
}
totalRequest = resources.Add(totalRequest, resource_utils.ComputePodResourceRequest(&pod))
}
return totalRequest
}
// get node instance type ,get from labels compatible
func getInstanceType(node *corev1.Node) string {
instanceType := node.Labels["node.kubernetes.io/instance-type"]
if instanceType == "" {
instanceType = node.Labels["beta.kubernetes.io/instance-type"]
}
return instanceType
}
// get gpu from custom resource map
func getGpu(resourceList corev1.ResourceList) *resource.Quantity {
if val, ok := (resourceList)[ResourceGPU]; ok {
return &val
}
return &resource.Quantity{Format: resource.DecimalSI}
}