48601bcd0e
It is possible to change this behavior on an ingress level, which works well when you only have a few of them. When running several dozen ingress and with a high change rate of running pods it makes it easier to define this configuration on a global level. This change is completely backwards compatible, only adding the possibility of defining a new key in the configmap.
128 lines
4.3 KiB
Go
128 lines
4.3 KiB
Go
/*
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Copyright 2021 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 annotations
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import (
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"fmt"
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"net/http"
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"strings"
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"github.com/onsi/ginkgo"
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"github.com/stretchr/testify/assert"
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"k8s.io/ingress-nginx/test/e2e/framework"
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"k8s.io/ingress-nginx/internal/nginx"
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)
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var _ = framework.DescribeAnnotation("service-upstream", func() {
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f := framework.NewDefaultFramework("serviceupstream")
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host := "serviceupstream"
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ginkgo.BeforeEach(func() {
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f.NewEchoDeployment()
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})
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ginkgo.Context("when using the default value (false) and enabling in the annotations", func() {
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ginkgo.It("should use the Service Cluster IP and Port ", func() {
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annotations := map[string]string{
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"nginx.ingress.kubernetes.io/service-upstream": "true",
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}
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ing := framework.NewSingleIngress(host, "/", host, f.Namespace, framework.EchoService, 80, annotations)
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f.EnsureIngress(ing)
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f.WaitForNginxServer(host, func(server string) bool {
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return strings.Contains(server, fmt.Sprintf("server_name %s", host))
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})
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ginkgo.By("checking if the service is reached")
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f.HTTPTestClient().
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GET("/").
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WithHeader("Host", host).
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Expect().
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Status(http.StatusOK)
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ginkgo.By("checking if the Service Cluster IP and Port are used")
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s := f.GetService(f.Namespace, framework.EchoService)
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curlCmd := fmt.Sprintf("curl --fail --silent http://localhost:%v/configuration/backends", nginx.StatusPort)
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output, err := f.ExecIngressPod(curlCmd)
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assert.Nil(ginkgo.GinkgoT(), err)
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assert.Contains(ginkgo.GinkgoT(), output, fmt.Sprintf(`{"address":"%s"`, s.Spec.ClusterIP))
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})
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})
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ginkgo.Context("when enabling in the configmap", func() {
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ginkgo.It("should use the Service Cluster IP and Port ", func() {
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annotations := map[string]string{}
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f.UpdateNginxConfigMapData("service-upstream", "true")
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ing := framework.NewSingleIngress(host, "/", host, f.Namespace, framework.EchoService, 80, annotations)
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f.EnsureIngress(ing)
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f.WaitForNginxServer(host, func(server string) bool {
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return strings.Contains(server, fmt.Sprintf("server_name %s", host))
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})
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ginkgo.By("checking if the service is reached")
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f.HTTPTestClient().
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GET("/").
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WithHeader("Host", host).
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Expect().
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Status(http.StatusOK)
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ginkgo.By("checking if the Service Cluster IP and Port are used")
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s := f.GetService(f.Namespace, framework.EchoService)
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curlCmd := fmt.Sprintf("curl --fail --silent http://localhost:%v/configuration/backends", nginx.StatusPort)
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output, err := f.ExecIngressPod(curlCmd)
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assert.Nil(ginkgo.GinkgoT(), err)
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assert.Contains(ginkgo.GinkgoT(), output, fmt.Sprintf(`{"address":"%s"`, s.Spec.ClusterIP))
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})
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})
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ginkgo.Context("when enabling in the configmap and disabling in the annotations", func() {
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ginkgo.It("should not use the Service Cluster IP and Port", func() {
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annotations := map[string]string{
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"nginx.ingress.kubernetes.io/service-upstream": "false",
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}
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f.UpdateNginxConfigMapData("service-upstream", "true")
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ing := framework.NewSingleIngress(host, "/", host, f.Namespace, framework.EchoService, 80, annotations)
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f.EnsureIngress(ing)
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f.WaitForNginxServer(host, func(server string) bool {
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return strings.Contains(server, fmt.Sprintf("server_name %s", host))
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})
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ginkgo.By("checking if the service is reached")
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f.HTTPTestClient().
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GET("/").
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WithHeader("Host", host).
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Expect().
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Status(http.StatusOK)
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ginkgo.By("checking if the Service Cluster IP and Port are not used")
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s := f.GetService(f.Namespace, framework.EchoService)
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curlCmd := fmt.Sprintf("curl --fail --silent http://localhost:%v/configuration/backends", nginx.StatusPort)
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output, err := f.ExecIngressPod(curlCmd)
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assert.Nil(ginkgo.GinkgoT(), err)
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assert.NotContains(ginkgo.GinkgoT(), output, fmt.Sprintf(`{"address":"%s"`, s.Spec.ClusterIP))
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})
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})
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})
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