forked from rook/rook
Rohan CJ
b16d55f4a0
- Implement exportable TolerationSet with the following differences:
- Change map key to a string to ensure it is deterministic.
The old key was a struct that included a pointer.
- Sort the outputted list by this key to ensure the order is deterministic.
- Get the tolerations from the deployment instead of the pod as pod tolerations
are sometimes modified by the system. We only want user provided tolerations
in our deployment.
- Modify tests to try duplicate keys from different structs. The old way tested duplicate
keys using the same structs.
Signed-off-by: Rohan CJ <rohantmp@gmail.com>
58 lines
1.7 KiB
Go
58 lines
1.7 KiB
Go
/*
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Copyright 2019 The Rook Authors. All rights reserved.
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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 controllerconfig
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import (
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"fmt"
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"sort"
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"strings"
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corev1 "k8s.io/api/core/v1"
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)
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// TolerationSet is a set of unique tolerations.
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type TolerationSet struct {
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tolerations map[string]corev1.Toleration
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}
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// Add adds a toleration to the TolerationSet
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func (t *TolerationSet) Add(toleration corev1.Toleration) {
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key := getKey(toleration)
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if len(t.tolerations) == 0 {
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t.tolerations = make(map[string]corev1.Toleration)
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}
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t.tolerations[key] = toleration
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}
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func getKey(toleration corev1.Toleration) string {
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return fmt.Sprintf("%s-%s-%s-%s", toleration.Key, toleration.Operator, toleration.Effect, toleration.Value)
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}
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// ToList returns a list of all tolerations in the set. The order will always be the same for the same set.
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func (t *TolerationSet) ToList() []corev1.Toleration {
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tolerationList := make([]corev1.Toleration, 0)
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for _, toleration := range t.tolerations {
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tolerationList = append(tolerationList, toleration)
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}
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sort.SliceStable(tolerationList, func(i, j int) bool {
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a := getKey(tolerationList[i])
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b := getKey(tolerationList[j])
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return strings.Compare(a, b) == -1
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})
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return tolerationList
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}
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