7f1a3965fd
- go test k8s.io/kubernetes/pkg/scheduler/algorithm/predicates -benchmem -run=^$ -bench .
68 lines
2.6 KiB
Go
68 lines
2.6 KiB
Go
/*
|
|
Copyright 2019 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 testing
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"k8s.io/api/core/v1"
|
|
)
|
|
|
|
// MakeNodesAndPods serves as a testing helper for EvenPodsSpread feature.
|
|
// It builds a fake cluster containing running Pods and Nodes.
|
|
// The size of Pods and Nodes are determined by input arguments.
|
|
// The specs of Pods and Nodes are generated with the following rules:
|
|
// - If `pod` has "node" as a topologyKey, each generated node is applied with a unique label: "node: node<i>".
|
|
// - If `pod` has "zone" as a topologyKey, each generated node is applied with a rotating label: "zone: zone[0-9]".
|
|
// - Depending on "lableSelector.MatchExpressions[0].Key" the `pod` has in each topologySpreadConstraint,
|
|
// each generated pod will be applied with label "key1", "key1,key2", ..., "key1,key2,...,keyN" in a rotating manner.
|
|
func MakeNodesAndPods(pod *v1.Pod, existingPodsNum, allNodesNum, filteredNodesNum int) (existingPods []*v1.Pod, allNodes []*v1.Node, filteredNodes []*v1.Node) {
|
|
var topologyKeys []string
|
|
var labels []string
|
|
zones := 10
|
|
for _, c := range pod.Spec.TopologySpreadConstraints {
|
|
topologyKeys = append(topologyKeys, c.TopologyKey)
|
|
labels = append(labels, c.LabelSelector.MatchExpressions[0].Key)
|
|
}
|
|
// build nodes
|
|
for i := 0; i < allNodesNum; i++ {
|
|
nodeWrapper := MakeNode().Name(fmt.Sprintf("node%d", i))
|
|
for _, tpKey := range topologyKeys {
|
|
if tpKey == "zone" {
|
|
nodeWrapper = nodeWrapper.Label("zone", fmt.Sprintf("zone%d", i%zones))
|
|
} else if tpKey == "node" {
|
|
nodeWrapper = nodeWrapper.Label("node", fmt.Sprintf("node%d", i))
|
|
}
|
|
}
|
|
node := nodeWrapper.Obj()
|
|
allNodes = append(allNodes, node)
|
|
if len(filteredNodes) < filteredNodesNum {
|
|
filteredNodes = append(filteredNodes, node)
|
|
}
|
|
}
|
|
// build pods
|
|
for i := 0; i < existingPodsNum; i++ {
|
|
podWrapper := MakePod().Name(fmt.Sprintf("pod%d", i)).Node(fmt.Sprintf("node%d", i%allNodesNum))
|
|
// apply labels[0], labels[0,1], ..., labels[all] to each pod in turn
|
|
for _, label := range labels[:i%len(labels)+1] {
|
|
podWrapper = podWrapper.Label(label, "")
|
|
}
|
|
existingPods = append(existingPods, podWrapper.Obj())
|
|
}
|
|
return
|
|
}
|