/
perf_utils.go
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/
perf_utils.go
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/*
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 framework
import (
"context"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
clientset "k8s.io/client-go/kubernetes"
"k8s.io/klog/v2"
testutils "k8s.io/kubernetes/test/utils"
)
const (
retries = 5
)
// IntegrationTestNodePreparer holds configuration information for the test node preparer.
type IntegrationTestNodePreparer struct {
client clientset.Interface
countToStrategy []testutils.CountToStrategy
nodeNamePrefix string
nodeSpec *v1.Node
}
// NewIntegrationTestNodePreparer creates an IntegrationTestNodePreparer configured with defaults.
func NewIntegrationTestNodePreparer(client clientset.Interface, countToStrategy []testutils.CountToStrategy, nodeNamePrefix string) testutils.TestNodePreparer {
return &IntegrationTestNodePreparer{
client: client,
countToStrategy: countToStrategy,
nodeNamePrefix: nodeNamePrefix,
}
}
// NewIntegrationTestNodePreparerWithNodeSpec creates an IntegrationTestNodePreparer configured with nodespec.
func NewIntegrationTestNodePreparerWithNodeSpec(client clientset.Interface, countToStrategy []testutils.CountToStrategy, nodeSpec *v1.Node) testutils.TestNodePreparer {
return &IntegrationTestNodePreparer{
client: client,
countToStrategy: countToStrategy,
nodeSpec: nodeSpec,
}
}
// PrepareNodes prepares countToStrategy test nodes.
func (p *IntegrationTestNodePreparer) PrepareNodes(nextNodeIndex int) error {
numNodes := 0
for _, v := range p.countToStrategy {
numNodes += v.Count
}
klog.Infof("Making %d nodes", numNodes)
baseNode := &v1.Node{
ObjectMeta: metav1.ObjectMeta{
GenerateName: p.nodeNamePrefix,
},
Status: v1.NodeStatus{
Capacity: v1.ResourceList{
v1.ResourcePods: *resource.NewQuantity(110, resource.DecimalSI),
v1.ResourceCPU: resource.MustParse("4"),
v1.ResourceMemory: resource.MustParse("32Gi"),
},
Phase: v1.NodeRunning,
Conditions: []v1.NodeCondition{
{Type: v1.NodeReady, Status: v1.ConditionTrue},
},
},
}
if p.nodeSpec != nil {
baseNode = p.nodeSpec
}
for i := 0; i < numNodes; i++ {
var err error
for retry := 0; retry < retries; retry++ {
_, err = p.client.CoreV1().Nodes().Create(context.TODO(), baseNode, metav1.CreateOptions{})
if err == nil {
break
}
}
if err != nil {
klog.Fatalf("Error creating node: %v", err)
}
}
nodes, err := GetReadySchedulableNodes(p.client)
if err != nil {
klog.Fatalf("Error listing nodes: %v", err)
}
index := nextNodeIndex
for _, v := range p.countToStrategy {
for i := 0; i < v.Count; i, index = i+1, index+1 {
if err := testutils.DoPrepareNode(p.client, &nodes.Items[index], v.Strategy); err != nil {
klog.Errorf("Aborting node preparation: %v", err)
return err
}
}
}
return nil
}
// CleanupNodes deletes existing test nodes.
func (p *IntegrationTestNodePreparer) CleanupNodes() error {
// TODO(#93794): make CleanupNodes only clean up the nodes created by this
// IntegrationTestNodePreparer to make this more intuitive.
nodes, err := GetReadySchedulableNodes(p.client)
if err != nil {
klog.Fatalf("Error listing nodes: %v", err)
}
var errRet error
for i := range nodes.Items {
if err := p.client.CoreV1().Nodes().Delete(context.TODO(), nodes.Items[i].Name, metav1.DeleteOptions{}); err != nil {
klog.Errorf("Error while deleting Node: %v", err)
errRet = err
}
}
return errRet
}