139 lines
3.5 KiB
Go
139 lines
3.5 KiB
Go
/*
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Copyright 2019 The KubeSphere Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package node
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import (
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"fmt"
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"k8s.io/client-go/informers"
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"kubesphere.io/kubesphere/pkg/models/resources/v1alpha2"
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"k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/labels"
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"kubesphere.io/kubesphere/pkg/server/params"
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"sort"
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)
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const (
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nodeConfigOK v1.NodeConditionType = "ConfigOK"
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nodeKubeletReady v1.NodeConditionType = "KubeletReady"
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)
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type nodeSearcher struct {
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informers informers.SharedInformerFactory
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}
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func NewNodeSearcher(informers informers.SharedInformerFactory) v1alpha2.Interface {
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return &nodeSearcher{informers: informers}
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}
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func (s *nodeSearcher) Get(_, name string) (interface{}, error) {
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return s.informers.Core().V1().Nodes().Lister().Get(name)
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}
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func getNodeStatus(node *v1.Node) string {
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if node.Spec.Unschedulable {
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return v1alpha2.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 v1alpha2.StatusWarning
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}
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}
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return v1alpha2.StatusRunning
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}
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var expectedConditions = map[v1.NodeConditionType]v1.ConditionStatus{
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v1.NodeMemoryPressure: v1.ConditionFalse,
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v1.NodeDiskPressure: v1.ConditionFalse,
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v1.NodePIDPressure: v1.ConditionFalse,
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v1.NodeNetworkUnavailable: v1.ConditionFalse,
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nodeConfigOK: v1.ConditionTrue,
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nodeKubeletReady: v1.ConditionTrue,
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v1.NodeReady: v1.ConditionTrue,
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}
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func isUnhealthyStatus(condition v1.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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func (*nodeSearcher) match(match map[string]string, item *v1.Node) bool {
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for k, v := range match {
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switch k {
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case v1alpha2.Role:
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labelKey := fmt.Sprintf("node-role.kubernetes.io/%s", v)
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if _, ok := item.Labels[labelKey]; !ok {
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return false
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}
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case v1alpha2.Status:
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if getNodeStatus(item) != v {
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return false
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}
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default:
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if !v1alpha2.ObjectMetaExactlyMath(k, v, item.ObjectMeta) {
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return false
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}
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}
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}
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return true
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}
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func (*nodeSearcher) fuzzy(fuzzy map[string]string, item *v1.Node) bool {
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for k, v := range fuzzy {
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if !v1alpha2.ObjectMetaFuzzyMath(k, v, item.ObjectMeta) {
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return false
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}
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}
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return true
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}
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func (s *nodeSearcher) Search(namespace string, conditions *params.Conditions, orderBy string, reverse bool) ([]interface{}, error) {
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nodes, err := s.informers.Core().V1().Nodes().Lister().List(labels.Everything())
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if err != nil {
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return nil, err
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}
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result := make([]*v1.Node, 0)
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if len(conditions.Match) == 0 && len(conditions.Fuzzy) == 0 {
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result = nodes
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} else {
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for _, item := range nodes {
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if s.match(conditions.Match, item) && s.fuzzy(conditions.Fuzzy, item) {
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result = append(result, item)
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}
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}
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}
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sort.Slice(result, func(i, j int) bool {
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if reverse {
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i, j = j, i
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}
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return v1alpha2.ObjectMetaCompare(result[i].ObjectMeta, result[j].ObjectMeta, orderBy)
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})
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r := make([]interface{}, 0)
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for _, i := range result {
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r = append(r, i)
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}
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return r, nil
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}
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