56 lines
2 KiB
Go
56 lines
2 KiB
Go
/*
|
|
Copyright 2017 The Kubernetes Authors.
|
|
|
|
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 v1
|
|
|
|
// MatchToleration checks if the toleration matches tolerationToMatch. Tolerations are unique by <key,effect,operator,value>,
|
|
// if the two tolerations have same <key,effect,operator,value> combination, regard as they match.
|
|
// TODO: uniqueness check for tolerations in api validations.
|
|
func (t *Toleration) MatchToleration(tolerationToMatch *Toleration) bool {
|
|
return t.Key == tolerationToMatch.Key &&
|
|
t.Effect == tolerationToMatch.Effect &&
|
|
t.Operator == tolerationToMatch.Operator &&
|
|
t.Value == tolerationToMatch.Value
|
|
}
|
|
|
|
// ToleratesTaint checks if the toleration tolerates the taint.
|
|
// The matching follows the rules below:
|
|
// (1) Empty toleration.effect means to match all taint effects,
|
|
// otherwise taint effect must equal to toleration.effect.
|
|
// (2) If toleration.operator is 'Exists', it means to match all taint values.
|
|
// (3) Empty toleration.key means to match all taint keys.
|
|
// If toleration.key is empty, toleration.operator must be 'Exists';
|
|
// this combination means to match all taint values and all taint keys.
|
|
func (t *Toleration) ToleratesTaint(taint *Taint) bool {
|
|
if len(t.Effect) > 0 && t.Effect != taint.Effect {
|
|
return false
|
|
}
|
|
|
|
if len(t.Key) > 0 && t.Key != taint.Key {
|
|
return false
|
|
}
|
|
|
|
// TODO: Use proper defaulting when Toleration becomes a field of PodSpec
|
|
switch t.Operator {
|
|
// empty operator means Equal
|
|
case "", TolerationOpEqual:
|
|
return t.Value == taint.Value
|
|
case TolerationOpExists:
|
|
return true
|
|
default:
|
|
return false
|
|
}
|
|
}
|