245 lines
8 KiB
Go
245 lines
8 KiB
Go
/*
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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 annotations
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import (
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"fmt"
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"net/http"
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"time"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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"github.com/parnurzeal/gorequest"
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"k8s.io/ingress-nginx/test/e2e/framework"
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)
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const (
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waitForLuaSync = 5 * time.Second
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)
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var _ = framework.IngressNginxDescribe("Annotations - canary", func() {
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f := framework.NewDefaultFramework("canary")
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BeforeEach(func() {
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// Deployment for main backend
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f.NewEchoDeployment()
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// Deployment for canary backend
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f.NewDeployment("http-svc-canary", "gcr.io/kubernetes-e2e-test-images/echoserver:2.2", 8080, 1)
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})
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Context("when canaried by header", func() {
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It("should route requests to the canary pod if header is set to 'always'", func() {
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host := "foo"
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annotations := map[string]string{}
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ing := framework.NewSingleIngress(host, "/", host, f.IngressController.Namespace, "http-svc", 80, &annotations)
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f.EnsureIngress(ing)
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f.WaitForNginxServer(host,
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func(server string) bool {
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return Expect(server).Should(ContainSubstring("server_name foo"))
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})
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canaryAnnotations := map[string]string{
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"nginx.ingress.kubernetes.io/canary": "true",
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"nginx.ingress.kubernetes.io/canary-by-header": "CanaryByHeader",
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}
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canaryIngName := fmt.Sprintf("%v-canary", host)
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canaryIng := framework.NewSingleIngress(canaryIngName, "/", host, f.IngressController.Namespace, "http-svc-canary",
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80, &canaryAnnotations)
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f.EnsureIngress(canaryIng)
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time.Sleep(waitForLuaSync)
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resp, body, errs := gorequest.New().
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Get(f.IngressController.HTTPURL).
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Set("Host", host).
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Set("CanaryByHeader", "always").
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End()
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Expect(errs).Should(BeEmpty())
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Expect(resp.StatusCode).ShouldNot(Equal(http.StatusNotFound))
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Expect(body).Should(ContainSubstring("http-svc-canary"))
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})
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It("should not route requests to the canary pod if header is set to 'never'", func() {
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host := "foo"
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annotations := map[string]string{}
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ing := framework.NewSingleIngress(host, "/", host, f.IngressController.Namespace, "http-svc", 80, &annotations)
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f.EnsureIngress(ing)
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f.WaitForNginxServer(host,
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func(server string) bool {
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return Expect(server).Should(ContainSubstring("server_name foo"))
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})
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canaryAnnotations := map[string]string{
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"nginx.ingress.kubernetes.io/canary": "true",
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"nginx.ingress.kubernetes.io/canary-by-header": "CanaryByHeader",
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}
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canaryIngName := fmt.Sprintf("%v-canary", host)
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canaryIng := framework.NewSingleIngress(canaryIngName, "/", host, f.IngressController.Namespace, "http-svc-canary",
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80, &canaryAnnotations)
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f.EnsureIngress(canaryIng)
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time.Sleep(waitForLuaSync)
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resp, body, errs := gorequest.New().
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Get(f.IngressController.HTTPURL).
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Set("Host", host).
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Set("CanaryByHeader", "never").
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End()
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Expect(errs).Should(BeEmpty())
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Expect(resp.StatusCode).ShouldNot(Equal(http.StatusNotFound))
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Expect(body).ShouldNot(ContainSubstring("http-svc-canary"))
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})
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})
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Context("when canaried by cookie", func() {
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It("should route requests to the canary pod if cookie is set to 'always'", func() {
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host := "foo"
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annotations := map[string]string{}
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ing := framework.NewSingleIngress(host, "/", host, f.IngressController.Namespace, "http-svc", 80, &annotations)
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f.EnsureIngress(ing)
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f.WaitForNginxServer(host,
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func(server string) bool {
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return Expect(server).Should(ContainSubstring("server_name foo"))
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})
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canaryAnnotations := map[string]string{
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"nginx.ingress.kubernetes.io/canary": "true",
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"nginx.ingress.kubernetes.io/canary-by-cookie": "CanaryByCookie",
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}
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canaryIngName := fmt.Sprintf("%v-canary", host)
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canaryIng := framework.NewSingleIngress(canaryIngName, "/", host, f.IngressController.Namespace, "http-svc-canary",
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80, &canaryAnnotations)
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f.EnsureIngress(canaryIng)
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time.Sleep(waitForLuaSync)
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resp, body, errs := gorequest.New().
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Get(f.IngressController.HTTPURL).
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Set("Host", host).
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AddCookie(&http.Cookie{Name: "CanaryByCookie", Value: "always"}).
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End()
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Expect(errs).Should(BeEmpty())
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Expect(resp.StatusCode).ShouldNot(Equal(http.StatusNotFound))
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Expect(body).Should(ContainSubstring("http-svc-canary"))
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})
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It("should not route requests to the canary pod if cookie is set to 'never'", func() {
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host := "foo"
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annotations := map[string]string{}
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ing := framework.NewSingleIngress(host, "/", host, f.IngressController.Namespace, "http-svc", 80, &annotations)
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f.EnsureIngress(ing)
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Expect(ing).NotTo(BeNil())
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f.WaitForNginxServer(host,
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func(server string) bool {
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return Expect(server).Should(ContainSubstring("server_name foo"))
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})
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canaryAnnotations := map[string]string{
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"nginx.ingress.kubernetes.io/canary": "true",
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"nginx.ingress.kubernetes.io/canary-by-header": "CanaryByHeader",
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}
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canaryIngName := fmt.Sprintf("%v-canary", host)
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canaryIng := framework.NewSingleIngress(canaryIngName, "/", host, f.IngressController.Namespace, "http-svc-canary",
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80, &canaryAnnotations)
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f.EnsureIngress(canaryIng)
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time.Sleep(waitForLuaSync)
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resp, body, errs := gorequest.New().
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Get(f.IngressController.HTTPURL).
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Set("Host", host).
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AddCookie(&http.Cookie{Name: "CanaryByCookie", Value: "never"}).
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End()
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Expect(errs).Should(BeEmpty())
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Expect(resp.StatusCode).ShouldNot(Equal(http.StatusNotFound))
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Expect(body).ShouldNot(ContainSubstring("http-svc-canary"))
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})
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})
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Context("Single canary Ingress", func() {
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It("should not use canary as a catch-all server", func() {
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host := "foo"
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canaryIngName := fmt.Sprintf("%v-canary", host)
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annotations := map[string]string{
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"nginx.ingress.kubernetes.io/canary": "true",
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"nginx.ingress.kubernetes.io/canary-by-header": "CanaryByHeader",
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}
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ing := framework.NewSingleCatchAllIngress(canaryIngName, f.IngressController.Namespace, "http-svc-canary", 80, &annotations)
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f.EnsureIngress(ing)
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ing = framework.NewSingleCatchAllIngress(host, f.IngressController.Namespace, "http-svc", 80, nil)
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f.EnsureIngress(ing)
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f.WaitForNginxServer("_",
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func(server string) bool {
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upstreamName := fmt.Sprintf(`set $proxy_upstream_name "%s-%s-%s";`, f.IngressController.Namespace, "http-svc", "80")
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canaryUpstreamName := fmt.Sprintf(`set $proxy_upstream_name "%s-%s-%s";`, f.IngressController.Namespace, "http-svc-canary", "80")
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return Expect(server).Should(ContainSubstring(`set $ingress_name "`+host+`";`)) &&
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Expect(server).ShouldNot(ContainSubstring(`set $proxy_upstream_name "upstream-default-backend";`)) &&
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Expect(server).ShouldNot(ContainSubstring(canaryUpstreamName)) &&
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Expect(server).Should(ContainSubstring(upstreamName))
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})
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})
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It("should not use canary with domain as a server", func() {
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host := "foo"
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canaryIngName := fmt.Sprintf("%v-canary", host)
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annotations := map[string]string{
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"nginx.ingress.kubernetes.io/canary": "true",
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"nginx.ingress.kubernetes.io/canary-by-header": "CanaryByHeader",
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}
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ing := framework.NewSingleIngress(canaryIngName, "/", host, f.IngressController.Namespace, "http-svc-canary", 80, &annotations)
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f.EnsureIngress(ing)
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otherHost := "bar"
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ing = framework.NewSingleIngress(otherHost, "/", otherHost, f.IngressController.Namespace, "http-svc", 80, nil)
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f.EnsureIngress(ing)
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time.Sleep(waitForLuaSync)
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f.WaitForNginxConfiguration(func(cfg string) bool {
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return Expect(cfg).Should(ContainSubstring("server_name "+otherHost)) &&
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Expect(cfg).ShouldNot(ContainSubstring("server_name "+host))
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})
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})
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})
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})
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