84 lines
2.1 KiB
Go
84 lines
2.1 KiB
Go
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/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package settings
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import (
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"net/http"
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"regexp"
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"strings"
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"time"
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"github.com/parnurzeal/gorequest"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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"k8s.io/ingress-nginx/test/e2e/framework"
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)
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var _ = framework.IngressNginxDescribe("Load Balance", func() {
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f := framework.NewDefaultFramework("load-balance")
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setting := "load-balance"
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BeforeEach(func() {
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f.NewEchoDeploymentWithReplicas(3)
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})
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AfterEach(func() {
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f.UpdateNginxConfigMapData(setting, "")
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})
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It("should evenly distribute requests with round-robin (default algorithm)", func() {
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host := "load-balance.com"
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f.EnsureIngress(framework.NewSingleIngress(host, "/", host, f.IngressController.Namespace, "http-svc", 80, nil))
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f.WaitForNginxServer(host,
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func(server string) bool {
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return strings.Contains(server, "server_name load-balance.com")
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})
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re, _ := regexp.Compile(`http-svc.*`)
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replicaRequestCount := map[string]int{}
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for i := 0; i < 600; i++ {
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_, body, errs := gorequest.New().
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Get(f.IngressController.HTTPURL).
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Set("Host", host).
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Retry(10, 1*time.Second, http.StatusNotFound, http.StatusServiceUnavailable).
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End()
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Expect(len(errs)).Should(BeNumerically("==", 0))
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replica := re.FindString(body)
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Expect(replica).ShouldNot(Equal(""))
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if _, ok := replicaRequestCount[replica]; !ok {
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replicaRequestCount[replica] = 1
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} else {
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replicaRequestCount[replica]++
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}
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}
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acceptableRequestRange := []int{198, 199, 200, 201, 202}
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for _, v := range replicaRequestCount {
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Expect(acceptableRequestRange).Should(ContainElement(v))
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}
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})
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})
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