122 lines
4.0 KiB
Go
122 lines
4.0 KiB
Go
/*
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* Copyright 2024 the KubeSphere Authors.
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* Please refer to the LICENSE file in the root directory of the project.
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* https://github.com/kubesphere/kubesphere/blob/master/LICENSE
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*/
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package node
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import (
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"context"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/types"
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"sigs.k8s.io/controller-runtime/pkg/client"
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runtimeclient "sigs.k8s.io/controller-runtime/pkg/client"
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"kubesphere.io/kubesphere/pkg/api"
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"kubesphere.io/kubesphere/pkg/apiserver/query"
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"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3"
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)
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// Those annotations were added to node only for display purposes
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const (
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nodeCPURequests = "node.kubesphere.io/cpu-requests"
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nodeMemoryRequests = "node.kubesphere.io/memory-requests"
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nodeCPULimits = "node.kubesphere.io/cpu-limits"
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nodeMemoryLimits = "node.kubesphere.io/memory-limits"
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nodeCPURequestsFraction = "node.kubesphere.io/cpu-requests-fraction"
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nodeCPULimitsFraction = "node.kubesphere.io/cpu-limits-fraction"
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nodeMemoryRequestsFraction = "node.kubesphere.io/memory-requests-fraction"
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nodeMemoryLimitsFraction = "node.kubesphere.io/memory-limits-fraction"
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nodeConfigOK corev1.NodeConditionType = "ConfigOK"
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nodeKubeletReady corev1.NodeConditionType = "KubeletReady"
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statusRunning = "running"
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statusWarning = "warning"
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statusUnschedulable = "unschedulable"
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)
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type nodesGetter struct {
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cache runtimeclient.Reader
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}
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func New(cache runtimeclient.Reader) v1alpha3.Interface {
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return &nodesGetter{cache: cache}
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}
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func (c *nodesGetter) Get(_, name string) (runtime.Object, error) {
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node := &corev1.Node{}
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return node, c.cache.Get(context.Background(), types.NamespacedName{Name: name}, node)
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}
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func (c *nodesGetter) List(_ string, q *query.Query) (*api.ListResult, error) {
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nodes := &corev1.NodeList{}
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if err := c.cache.List(context.Background(), nodes,
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client.MatchingLabelsSelector{Selector: q.Selector()}); err != nil {
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return nil, err
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}
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var result []runtime.Object
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for _, item := range nodes.Items {
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result = append(result, item.DeepCopy())
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}
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return v1alpha3.DefaultList(result, q, c.compare, c.filter), nil
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}
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func (c *nodesGetter) compare(left runtime.Object, right runtime.Object, field query.Field) bool {
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leftNode, ok := left.(*corev1.Node)
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if !ok {
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return false
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}
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rightNode, ok := right.(*corev1.Node)
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if !ok {
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return false
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}
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return v1alpha3.DefaultObjectMetaCompare(leftNode.ObjectMeta, rightNode.ObjectMeta, field)
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}
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func (c *nodesGetter) filter(object runtime.Object, filter query.Filter) bool {
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node, ok := object.(*corev1.Node)
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if !ok {
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return false
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}
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switch filter.Field {
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case query.FieldStatus:
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return getNodeStatus(node) == string(filter.Value)
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}
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return v1alpha3.DefaultObjectMetaFilter(node.ObjectMeta, filter)
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}
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func getNodeStatus(node *corev1.Node) string {
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if node.Spec.Unschedulable {
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return statusUnschedulable
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}
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for _, condition := range node.Status.Conditions {
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if isUnhealthyStatus(condition) {
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return statusWarning
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}
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}
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return statusRunning
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}
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var expectedConditions = map[corev1.NodeConditionType]corev1.ConditionStatus{
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corev1.NodeMemoryPressure: corev1.ConditionFalse,
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corev1.NodeDiskPressure: corev1.ConditionFalse,
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corev1.NodePIDPressure: corev1.ConditionFalse,
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corev1.NodeNetworkUnavailable: corev1.ConditionFalse,
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nodeConfigOK: corev1.ConditionTrue,
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nodeKubeletReady: corev1.ConditionTrue,
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corev1.NodeReady: corev1.ConditionTrue,
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}
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func isUnhealthyStatus(condition corev1.NodeCondition) bool {
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expectedStatus := expectedConditions[condition.Type]
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if expectedStatus != "" && condition.Status != expectedStatus {
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return true
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}
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return false
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}
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