代码拉取完成,页面将自动刷新
/*
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 clusterselector
import (
"encoding/json"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/selection"
federation_v1beta1 "k8s.io/kubernetes/federation/apis/federation/v1beta1"
)
// Parses the cluster selector annotation to find out if the object with that annotation should be forwarded to a cluster with the given clusterLabels.
func SendToCluster(clusterLabels map[string]string, annotations map[string]string) (bool, error) {
// Check if a ClusterSelector annotation exists and send to all clusters when it does not exist
val, ok := annotations[federation_v1beta1.FederationClusterSelectorAnnotation]
if !ok {
return true, nil
}
selector, err := getSelector(val)
if err != nil {
return false, err
}
return selector.Matches(labels.Set(clusterLabels)), nil
}
func getSelector(annotation string) (labels.Selector, error) {
selector := labels.NewSelector()
requirements := make([]federation_v1beta1.ClusterSelectorRequirement, 0)
err := json.Unmarshal([]byte(annotation), &requirements)
if err != nil {
return nil, err
}
for _, requirement := range requirements {
r, err := labels.NewRequirement(requirement.Key, ConvertOperator(requirement.Operator), requirement.Values)
if err != nil {
// Stop processing and assume failure since we have no way of knowing the end users intent for this or any other clusters.
return nil, err
}
selector = selector.Add(*r)
}
return selector, nil
}
// ConvertOperator converts a string operator into selection.Operator type
func ConvertOperator(source string) selection.Operator {
var op selection.Operator
switch source {
case "!", "DoesNotExist":
op = selection.DoesNotExist
case "=":
op = selection.Equals
case "==":
op = selection.DoubleEquals
case "in", "In":
op = selection.In
case "!=":
op = selection.NotEquals
case "notin", "NotIn":
op = selection.NotIn
case "exists", "Exists":
op = selection.Exists
case "gt", "Gt", ">":
op = selection.GreaterThan
case "lt", "Lt", "<":
op = selection.LessThan
}
return op
}
此处可能存在不合适展示的内容,页面不予展示。您可通过相关编辑功能自查并修改。
如您确认内容无涉及 不当用语 / 纯广告导流 / 暴力 / 低俗色情 / 侵权 / 盗版 / 虚假 / 无价值内容或违法国家有关法律法规的内容,可点击提交进行申诉,我们将尽快为您处理。