kubernetes/pkg/scheduler/algorithm/predicates/utils_test.go
Yongkun Anfernee Gui 68c2c79362 Refactor HostIP predicate algorithm
- Remove string decode logic. It's not really helping to find the
  conflict ports, and it's expensive to do encoding/decoding
- Not to parse the container ports information in predicate meta, use
  straight []*v1.ContainerPort
- Use better data structure to search port conflict based on ip
  addresses
- Collect scattered source code into common place
2018-01-08 17:10:21 -08:00

71 lines
1.9 KiB
Go

/*
Copyright 2016 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 predicates
import (
"fmt"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
)
// ExampleUtils is a https://blog.golang.org/examples styled unit test.
func ExampleFindLabelsInSet() {
labelSubset := labels.Set{}
labelSubset["label1"] = "value1"
labelSubset["label2"] = "value2"
// Lets make believe that these pods are on the cluster.
// Utility functions will inspect their labels, filter them, and so on.
nsPods := []*v1.Pod{
{
ObjectMeta: metav1.ObjectMeta{
Name: "pod1",
Namespace: "ns1",
Labels: map[string]string{
"label1": "wontSeeThis",
"label2": "wontSeeThis",
"label3": "will_see_this",
},
},
}, // first pod which will be used via the utilities
{
ObjectMeta: metav1.ObjectMeta{
Name: "pod2",
Namespace: "ns1",
},
},
{
ObjectMeta: metav1.ObjectMeta{
Name: "pod3ThatWeWontSee",
},
},
}
fmt.Println(FindLabelsInSet([]string{"label1", "label2", "label3"}, nsPods[0].ObjectMeta.Labels)["label3"])
AddUnsetLabelsToMap(labelSubset, []string{"label1", "label2", "label3"}, nsPods[0].ObjectMeta.Labels)
fmt.Println(labelSubset)
for _, pod := range FilterPodsByNamespace(nsPods, "ns1") {
fmt.Print(pod.Name, ",")
}
// Output:
// will_see_this
// label1=value1,label2=value2,label3=will_see_this
// pod1,pod2,
}