249 lines
8.2 KiB
Go
249 lines
8.2 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 lua
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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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"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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appsv1beta1 "k8s.io/api/apps/v1beta1"
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extensions "k8s.io/api/extensions/v1beta1"
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v1beta1 "k8s.io/api/extensions/v1beta1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/util/intstr"
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"k8s.io/client-go/kubernetes"
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"k8s.io/ingress-nginx/test/e2e/framework"
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)
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var _ = framework.IngressNginxDescribe("Dynamic Configuration", func() {
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f := framework.NewDefaultFramework("dynamic-configuration")
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BeforeEach(func() {
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err := enableDynamicConfiguration(f.KubeClientSet)
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Expect(err).NotTo(HaveOccurred())
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err = f.NewEchoDeploymentWithReplicas(1)
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Expect(err).NotTo(HaveOccurred())
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host := "foo.com"
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ing, err := ensureIngress(f, host)
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Expect(err).NotTo(HaveOccurred())
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Expect(ing).NotTo(BeNil())
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time.Sleep(5 * time.Second)
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err = f.WaitForNginxServer(host,
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func(server string) bool {
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return strings.Contains(server, "proxy_pass http://upstream_balancer;")
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})
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Expect(err).NotTo(HaveOccurred())
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resp, _, errs := gorequest.New().
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Get(f.NginxHTTPURL).
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Set("Host", host).
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End()
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Expect(len(errs)).Should(BeNumerically("==", 0))
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Expect(resp.StatusCode).Should(Equal(http.StatusOK))
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log, err := f.NginxLogs()
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Expect(err).ToNot(HaveOccurred())
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Expect(log).ToNot(ContainSubstring("could not dynamically reconfigure"))
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Expect(log).To(ContainSubstring("first sync of Nginx configuration"))
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})
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AfterEach(func() {
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err := disableDynamicConfiguration(f.KubeClientSet)
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Expect(err).NotTo(HaveOccurred())
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})
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Context("when only backends change", func() {
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It("should handle endpoints only changes", func() {
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resp, _, errs := gorequest.New().
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Get(fmt.Sprintf("%s?id=endpoints_only_changes", f.NginxHTTPURL)).
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Set("Host", "foo.com").
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End()
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Expect(len(errs)).Should(BeNumerically("==", 0))
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Expect(resp.StatusCode).Should(Equal(http.StatusOK))
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replicas := 2
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err := framework.UpdateDeployment(f.KubeClientSet, f.Namespace.Name, "http-svc", replicas,
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func(deployment *appsv1beta1.Deployment) error {
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deployment.Spec.Replicas = framework.NewInt32(int32(replicas))
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_, err := f.KubeClientSet.AppsV1beta1().Deployments(f.Namespace.Name).Update(deployment)
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return err
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})
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Expect(err).NotTo(HaveOccurred())
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time.Sleep(5 * time.Second)
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log, err := f.NginxLogs()
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Expect(err).ToNot(HaveOccurred())
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Expect(log).ToNot(BeEmpty())
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index := strings.Index(log, "id=endpoints_only_changes")
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restOfLogs := log[index:]
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By("POSTing new backends to Lua endpoint")
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Expect(restOfLogs).To(ContainSubstring("dynamic reconfiguration succeeded"))
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Expect(restOfLogs).ToNot(ContainSubstring("could not dynamically reconfigure"))
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By("skipping Nginx reload")
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Expect(restOfLogs).ToNot(ContainSubstring("backend reload required"))
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Expect(restOfLogs).ToNot(ContainSubstring("ingress backend successfully reloaded"))
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Expect(restOfLogs).To(ContainSubstring("skipping reload"))
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Expect(restOfLogs).ToNot(ContainSubstring("first sync of Nginx configuration"))
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})
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It("should handle annotation changes", func() {
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ingress, err := f.KubeClientSet.ExtensionsV1beta1().Ingresses(f.Namespace.Name).Get("foo.com", metav1.GetOptions{})
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Expect(err).ToNot(HaveOccurred())
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ingress.ObjectMeta.Annotations["nginx.ingress.kubernetes.io/load-balance"] = "round_robin"
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_, err = f.KubeClientSet.ExtensionsV1beta1().Ingresses(f.Namespace.Name).Update(ingress)
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Expect(err).ToNot(HaveOccurred())
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time.Sleep(5 * time.Second)
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log, err := f.NginxLogs()
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Expect(err).ToNot(HaveOccurred())
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Expect(log).ToNot(BeEmpty())
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index := strings.Index(log, fmt.Sprintf("reason: 'UPDATE' Ingress %s/foo.com", f.Namespace.Name))
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restOfLogs := log[index:]
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By("POSTing new backends to Lua endpoint")
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Expect(restOfLogs).To(ContainSubstring("dynamic reconfiguration succeeded"))
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Expect(restOfLogs).ToNot(ContainSubstring("could not dynamically reconfigure"))
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By("skipping Nginx reload")
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Expect(restOfLogs).ToNot(ContainSubstring("backend reload required"))
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Expect(restOfLogs).ToNot(ContainSubstring("ingress backend successfully reloaded"))
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Expect(restOfLogs).To(ContainSubstring("skipping reload"))
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Expect(restOfLogs).ToNot(ContainSubstring("first sync of Nginx configuration"))
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})
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})
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It("should handle a non backend update", func() {
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ingress, err := f.KubeClientSet.ExtensionsV1beta1().Ingresses(f.Namespace.Name).Get("foo.com", metav1.GetOptions{})
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Expect(err).ToNot(HaveOccurred())
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ingress.Spec.TLS = []v1beta1.IngressTLS{
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{
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Hosts: []string{"foo.com"},
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SecretName: "foo.com",
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},
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}
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_, _, _, err = framework.CreateIngressTLSSecret(f.KubeClientSet,
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ingress.Spec.TLS[0].Hosts,
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ingress.Spec.TLS[0].SecretName,
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ingress.Namespace)
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Expect(err).ToNot(HaveOccurred())
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_, err = f.KubeClientSet.ExtensionsV1beta1().Ingresses(f.Namespace.Name).Update(ingress)
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Expect(err).ToNot(HaveOccurred())
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time.Sleep(5 * time.Second)
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log, err := f.NginxLogs()
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Expect(err).ToNot(HaveOccurred())
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Expect(log).ToNot(BeEmpty())
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By("reloading Nginx")
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Expect(log).To(ContainSubstring("ingress backend successfully reloaded"))
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By("POSTing new backends to Lua endpoint")
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Expect(log).To(ContainSubstring("dynamic reconfiguration succeeded"))
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By("still be proxying requests through Lua balancer")
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err = f.WaitForNginxServer("foo.com",
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func(server string) bool {
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return strings.Contains(server, "proxy_pass http://upstream_balancer;")
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})
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Expect(err).NotTo(HaveOccurred())
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By("generating the respective ssl listen directive")
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err = f.WaitForNginxServer("foo.com",
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func(server string) bool {
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return strings.Contains(server, "server_name foo.com") &&
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strings.Contains(server, "listen 443")
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})
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Expect(err).ToNot(HaveOccurred())
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})
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})
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func enableDynamicConfiguration(kubeClientSet kubernetes.Interface) error {
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return framework.UpdateDeployment(kubeClientSet, "ingress-nginx", "nginx-ingress-controller", 1,
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func(deployment *appsv1beta1.Deployment) error {
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args := deployment.Spec.Template.Spec.Containers[0].Args
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args = append(args, "--enable-dynamic-configuration")
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deployment.Spec.Template.Spec.Containers[0].Args = args
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_, err := kubeClientSet.AppsV1beta1().Deployments("ingress-nginx").Update(deployment)
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return err
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})
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}
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func disableDynamicConfiguration(kubeClientSet kubernetes.Interface) error {
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return framework.UpdateDeployment(kubeClientSet, "ingress-nginx", "nginx-ingress-controller", 1,
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func(deployment *appsv1beta1.Deployment) error {
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args := deployment.Spec.Template.Spec.Containers[0].Args
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var newArgs []string
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for _, arg := range args {
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if arg != "--enable-dynamic-configuration" {
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newArgs = append(newArgs, arg)
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}
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}
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deployment.Spec.Template.Spec.Containers[0].Args = newArgs
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_, err := kubeClientSet.AppsV1beta1().Deployments("ingress-nginx").Update(deployment)
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return err
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})
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}
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func ensureIngress(f *framework.Framework, host string) (*extensions.Ingress, error) {
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return f.EnsureIngress(&v1beta1.Ingress{
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ObjectMeta: metav1.ObjectMeta{
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Name: host,
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Namespace: f.Namespace.Name,
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Annotations: map[string]string{
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"nginx.ingress.kubernetes.io/load-balance": "ewma",
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},
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},
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Spec: v1beta1.IngressSpec{
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Rules: []v1beta1.IngressRule{
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{
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Host: host,
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IngressRuleValue: v1beta1.IngressRuleValue{
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HTTP: &v1beta1.HTTPIngressRuleValue{
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Paths: []v1beta1.HTTPIngressPath{
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{
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Path: "/",
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Backend: v1beta1.IngressBackend{
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ServiceName: "http-svc",
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ServicePort: intstr.FromInt(80),
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},
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},
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},
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},
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},
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},
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},
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},
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})
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}
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