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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,190 @@ | ||
| // Copyright © 2022 Alibaba Group Holding Ltd. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package infradriver | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "net" | ||
| "strings" | ||
|
|
||
| "github.com/sealerio/sealer/pkg/runtime" | ||
| "github.com/sirupsen/logrus" | ||
| k8sv1 "k8s.io/api/core/v1" | ||
| ) | ||
|
|
||
| type Taint struct { | ||
| IPList []string | ||
| TaintList | ||
| } | ||
|
|
||
| const ( | ||
| DelSymbol = "-" | ||
| EqualSymbol = "=" | ||
| ColonSymbol = ":" | ||
| ) | ||
|
|
||
| type taintList struct { | ||
| DelTaintList []k8sv1.Taint | ||
| AddTaintList []k8sv1.Taint | ||
| } | ||
| type TaintList map[string]*taintList | ||
|
|
||
| var TaintEffectValues = []k8sv1.TaintEffect{k8sv1.TaintEffectNoSchedule, k8sv1.TaintEffectNoExecute, k8sv1.TaintEffectPreferNoSchedule} | ||
|
|
||
| // FormatData key1=value1:NoSchedule;key1=value1:NoSchedule-; | ||
| //key1:NoSchedule;key1:NoSchedule-; | ||
| //key1=:NoSchedule-;key1=value1:NoSchedule | ||
| func (t *Taint) FormatData(ip net.IP, data string) error { | ||
| var key, value, effect string | ||
| items := strings.Split(data, "\n") | ||
| if t.TaintList == nil { | ||
| t.TaintList = make(map[string]*taintList) | ||
| } | ||
| for _, v := range items { | ||
| v = strings.TrimSpace(v) | ||
| if strings.HasPrefix(v, "#") || v == "" { | ||
| continue | ||
| } | ||
| if strings.Contains(v, EqualSymbol) && !strings.Contains(v, EqualSymbol+ColonSymbol) { | ||
| temps := strings.Split(v, EqualSymbol) | ||
| if len(temps) != 2 { | ||
| return fmt.Errorf("faild to split taint argument: %s", v) | ||
| } | ||
| key = temps[0] | ||
| taintArgs := strings.Split(temps[1], ColonSymbol) | ||
| if len(taintArgs) != 2 { | ||
| return fmt.Errorf("error: invalid taint data: %s", v) | ||
| } | ||
| value, effect = taintArgs[0], taintArgs[1] | ||
| effect = strings.TrimSuffix(effect, DelSymbol) | ||
| } | ||
|
|
||
| if !strings.Contains(v, EqualSymbol) { | ||
| temps := strings.Split(v, ColonSymbol) | ||
| if len(temps) != 2 { | ||
| return fmt.Errorf("faild to split taint argument: %s", v) | ||
| } | ||
| key, value, effect = temps[0], "", temps[1] | ||
| } | ||
|
|
||
| if strings.Contains(v, EqualSymbol+ColonSymbol) { | ||
| temps := strings.Split(v, EqualSymbol+ColonSymbol) | ||
| if len(temps) != 2 { | ||
| return fmt.Errorf("faild to split taint argument: %s", v) | ||
| } | ||
| key, value, effect = temps[0], "", temps[1] | ||
| } | ||
|
|
||
| //kubectl taint nodes xxx key- : remove all key related taints | ||
| if t.TaintList[ip.String()] == nil { | ||
| t.TaintList[ip.String()] = &taintList{} | ||
| } | ||
| if strings.HasSuffix(v, DelSymbol) && !strings.Contains(v, ColonSymbol) && !strings.Contains(v, EqualSymbol) { | ||
| t.TaintList[ip.String()].DelTaintList = append(t.TaintList[ip.String()].DelTaintList, k8sv1.Taint{Key: strings.TrimSuffix(v, DelSymbol), Value: "", Effect: ""}) | ||
| } | ||
|
|
||
| effect = strings.TrimSuffix(effect, DelSymbol) | ||
| if NotInEffect(k8sv1.TaintEffect(effect), TaintEffectValues) { | ||
| return fmt.Errorf("taint effect %s need in %v", v, TaintEffectValues) | ||
| } | ||
|
|
||
| taint := k8sv1.Taint{ | ||
| Key: key, | ||
| Value: value, | ||
| Effect: k8sv1.TaintEffect(effect), | ||
| } | ||
|
|
||
| if _, ok := t.TaintList[ip.String()]; !ok { | ||
| t.TaintList[ip.String()] = &taintList{} | ||
| } | ||
| if strings.HasSuffix(v, DelSymbol) { | ||
| t.TaintList[ip.String()].DelTaintList = append(t.TaintList[ip.String()].DelTaintList, taint) | ||
| continue | ||
| } | ||
| t.TaintList[ip.String()].AddTaintList = append(t.TaintList[ip.String()].AddTaintList, taint) | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| //Remove existing taint | ||
| func (t *Taint) removePresenceTaint(taint k8sv1.Taint, ip string) { | ||
| for k, v := range t.TaintList[ip].AddTaintList { | ||
| if v.Key == taint.Key && v.Value == taint.Value && v.Effect == taint.Effect { | ||
| logrus.Infof("taint %s already exist", t.TaintList[ip].AddTaintList[k].String()) | ||
| t.TaintList[ip].AddTaintList = append(t.TaintList[ip].AddTaintList[:k], t.TaintList[ip].AddTaintList[k+1:]...) | ||
| break | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func (t *Taint) isDelTaint(taint k8sv1.Taint, ip string) bool { | ||
| for _, v := range t.TaintList[ip].DelTaintList { | ||
| if v.Key == taint.Key && (v.Effect == taint.Effect || v.Effect == "") { | ||
| return true | ||
| } | ||
| } | ||
| return false | ||
| } | ||
|
|
||
| func NotInEffect(effect k8sv1.TaintEffect, effects []k8sv1.TaintEffect) bool { | ||
| for _, e := range effects { | ||
| if e == effect { | ||
| return false | ||
| } | ||
| } | ||
| return true | ||
| } | ||
|
|
||
| // UpdateTaints return nil mean's needn't update taint | ||
| func (t *Taint) UpdateTaints(taints []k8sv1.Taint, ip string) []k8sv1.Taint { | ||
| needDel := false | ||
| var updateTaints []k8sv1.Taint | ||
| for k, v := range taints { | ||
| t.removePresenceTaint(v, ip) | ||
| if t.isDelTaint(v, ip) { | ||
| needDel = true | ||
| continue | ||
| } | ||
| updateTaints = append(updateTaints, taints[k]) | ||
| } | ||
| if len(t.TaintList[ip].AddTaintList) == 0 && !needDel { | ||
| return nil | ||
| } | ||
| return append(updateTaints, t.TaintList[ip].AddTaintList...) | ||
| } | ||
|
|
||
| func (t *Taint) UpdateNodeTaint(ip net.IP, driver runtime.Driver) (k8sv1.Node, error) { | ||
| var node k8sv1.Node | ||
| nodeList := k8sv1.NodeList{} | ||
| if err := driver.List(context.TODO(), &nodeList); err != nil { | ||
| return k8sv1.Node{}, fmt.Errorf("failed to list cluster nodes: %v", err) | ||
| } | ||
|
|
||
| for _, node = range nodeList.Items { | ||
| updateTaints := t.UpdateTaints(node.Spec.Taints, ip.String()) | ||
| if updateTaints != nil { | ||
| node.Spec.Taints = updateTaints | ||
| } | ||
| if err := driver.Update(context.TODO(), &node); err != nil { | ||
| return k8sv1.Node{}, err | ||
| } | ||
| } | ||
| return node, nil | ||
| } | ||
|
|
||
| func NewCreateTaints() *Taint { | ||
| return &Taint{TaintList: make(map[string]*taintList)} | ||
| } |
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