You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: generic_soak.go
    path of file: ./repos/kubernetes/test/e2e/instrumentation/logging
    
    the code of the file until where you have to start completion: /*
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 logging

import (
	"context"
	"fmt"
	"strconv"
	"strings"
	"sync"
	"time"

	v1 "k8s.io/api/core/v1"
	"k8s.io/kubernetes/test/e2e/framework"
	e2econfig "k8s.io/kubernetes/test/e2e/framework/config"
	e2enode "k8s.io/kubernetes/test/e2e/framework/node"
	e2eoutput "k8s.io/kubernetes/test/e2e/framework/pod/output"
	instrumentation "k8s.io/kubernetes/test/e2e/instrumentation/common"
	imageutils "k8s.io/kubernetes/test/utils/image"
	admissionapi "k8s.io/pod-security-admission/api"

	"github.com/onsi/ginkgo/v2"
	"github.com/onsi/gomega"
)

var loggingSoak struct {
	Scale            int           `default:"1" usage:"number of waves of pods"`
	TimeBetweenWaves time.Duration `default:"5000ms" usage:"time to wait before dumping the next wave of pods"`
}
var _ = e2econfig.AddOptions(&loggingSoak, "instrumentation.logging.soak")

var _ = instrumentation.SIGDescribe("Logging soak [Performance]", framework.WithSlow(), framework.WithDisruptive(), func() {

	f := framework.NewDefaultFramework("logging-soak")
	f.NamespacePodSecurityLevel = admissionapi.LevelPrivileged

	// Not a global constant (irrelevant outside this test), also not a parameter (if you want more logs, use --scale=).
	k
    
func RunLogPodsWithSleepOf(ctx context.Context, f *framework.Framework, sleep time.Duration, podname string, timeout time.Duration) {

	nodes, err := e2enode.GetReadySchedulableNodes(ctx, f.ClientSet)
	framework.ExpectNoError(err)
	totalPods := len(nodes.Items)
	gomega.Expect(nodes.Items).ToNot(gomega.BeEmpty())

	kilobyte := strings.Repeat("logs-123", 128) // 8*128=1024 = 1KB of text.

	appName := "logging-soak" + podname
	podlables := e2enode.CreatePodsPerNodeForSimpleApp(
		ctx,
		f.ClientSet,
		f.Namespace.Name,
		appName,
		func(n v1.Node) v1.PodSpec {
			return v1.PodSpec{
				Containers: []v1.Container{{
					Name:  "logging-soak",
					Image: imageutils.GetE2EImage(imageutils.BusyBox),
					Args: []string{
						"/bin/sh",
						"-c",
						fmt.Sprintf("while true ; do echo %v ; sleep %v; done", kilobyte, sleep.Seconds()),
					},
				}},
				NodeName:      n.Name,
				RestartPolicy: v1.RestartPolicyAlways,
			}
		},
		totalPods,
	)

	logSoakVerification := f.NewClusterVerification(
		f.Namespace,
		framework.PodStateVerification{
			Selectors:   podlables,
			ValidPhases: []v1.PodPhase{v1.PodRunning, v1.PodSucceeded},
			// we don't validate total log data, since there is no guarantee all logs will be stored forever.
			// instead, we just validate that some logs are being created in std out.
			Verify: func(p v1.Pod) (bool, error) {
				s, err := e2eoutput.LookForStringInLog(f.Namespace.Name, p.Name, "logging-soak", "logs-123", 1*time.Second)
				return s != "", err
			},
		},
	)

	largeClusterForgiveness := time.Duration(len(nodes.Items)/5) * time.Second // i.e. a 100 node cluster gets an extra 20 seconds to complete.
	pods, err := logSoakVerification.WaitFor(ctx, totalPods, timeout+largeClusterForgiveness)

	if err != nil {
		framework.Failf("Error in wait... %v", err)
	} else if len(pods) < totalPods {
		framework.Failf("Only got %v out of %v", len(pods), totalPods)
	}
}