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s2i_ruby.go
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s2i_ruby.go
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package image_ecosystem
import (
"fmt"
"time"
g "github.com/onsi/ginkgo"
o "github.com/onsi/gomega"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/util/wait"
e2e "k8s.io/kubernetes/test/e2e/framework"
exutil "github.com/openshift/origin/test/extended/util"
)
var _ = g.Describe("[image_ecosystem][ruby][Slow] hot deploy for openshift ruby image", func() {
defer g.GinkgoRecover()
var (
railsTemplate = "https://raw.githubusercontent.com/openshift/rails-ex/master/openshift/templates/rails-postgresql.json"
oc = exutil.NewCLI("s2i-ruby", exutil.KubeConfigPath())
modifyCommand = []string{"sed", "-ie", `s%render :file => 'public/index.html'%%`, "app/controllers/welcome_controller.rb"}
removeCommand = []string{"rm", "-f", "public/index.html"}
dcName = "rails-postgresql-example"
rcNameOne = fmt.Sprintf("%s-1", dcName)
rcNameTwo = fmt.Sprintf("%s-2", dcName)
dcLabelOne = exutil.ParseLabelsOrDie(fmt.Sprintf("deployment=%s", rcNameOne))
dcLabelTwo = exutil.ParseLabelsOrDie(fmt.Sprintf("deployment=%s", rcNameTwo))
)
g.Context("", func() {
g.AfterEach(func() {
if g.CurrentGinkgoTestDescription().Failed {
exutil.DumpPodStates(oc)
exutil.DumpPodLogsStartingWith("", oc)
}
})
g.Describe("Rails example", func() {
g.It(fmt.Sprintf("should work with hot deploy"), func() {
oc.SetOutputDir(exutil.TestContext.OutputDir)
exutil.CheckOpenShiftNamespaceImageStreams(oc)
g.By(fmt.Sprintf("calling oc new-app -f %q", railsTemplate))
err := oc.Run("new-app").Args("-f", railsTemplate).Execute()
o.Expect(err).NotTo(o.HaveOccurred())
g.By("waiting for build to finish")
err = exutil.WaitForABuild(oc.BuildClient().Build().Builds(oc.Namespace()), rcNameOne, nil, nil, nil)
if err != nil {
exutil.DumpBuildLogs(dcName, oc)
}
o.Expect(err).NotTo(o.HaveOccurred())
err = exutil.WaitForDeploymentConfig(oc.KubeClient(), oc.AppsClient().Apps(), oc.Namespace(), dcName, 1, oc)
o.Expect(err).NotTo(o.HaveOccurred())
g.By("waiting for endpoint")
err = e2e.WaitForEndpoint(oc.KubeFramework().ClientSet, oc.Namespace(), dcName)
o.Expect(err).NotTo(o.HaveOccurred())
oldEndpoint, err := oc.KubeFramework().ClientSet.Core().Endpoints(oc.Namespace()).Get(dcName, metav1.GetOptions{})
o.Expect(err).NotTo(o.HaveOccurred())
assertPageContent := func(content string, dcLabel labels.Selector) {
_, err := exutil.WaitForPods(oc.KubeClient().Core().Pods(oc.Namespace()), dcLabel, exutil.CheckPodIsRunningFn, 1, 4*time.Minute)
o.ExpectWithOffset(1, err).NotTo(o.HaveOccurred())
result, err := CheckPageContains(oc, dcName, "", content)
o.ExpectWithOffset(1, err).NotTo(o.HaveOccurred())
o.ExpectWithOffset(1, result).To(o.BeTrue())
}
// with hot deploy disabled, making a change to
// welcome_controller.rb should not affect the app
g.By("testing application content")
assertPageContent("Welcome to your Rails application on OpenShift", dcLabelOne)
g.By("modifying the source code with disabled hot deploy")
err = RunInPodContainer(oc, dcLabelOne, modifyCommand)
o.Expect(err).NotTo(o.HaveOccurred())
g.By("testing application content source modification")
assertPageContent("Welcome to your Rails application on OpenShift", dcLabelOne)
pods, err := oc.KubeClient().Core().Pods(oc.Namespace()).List(metav1.ListOptions{LabelSelector: dcLabelOne.String()})
o.Expect(err).NotTo(o.HaveOccurred())
o.Expect(len(pods.Items)).To(o.Equal(1))
g.By("turning on hot-deploy")
err = oc.Run("env").Args("dc", dcName, "RAILS_ENV=development").Execute()
o.Expect(err).NotTo(o.HaveOccurred())
err = exutil.WaitForDeploymentConfig(oc.KubeClient(), oc.AppsClient().Apps(), oc.Namespace(), dcName, 2, oc)
o.Expect(err).NotTo(o.HaveOccurred())
g.By("waiting for a new endpoint")
err = e2e.WaitForEndpoint(oc.KubeFramework().ClientSet, oc.Namespace(), dcName)
o.Expect(err).NotTo(o.HaveOccurred())
// Ran into an issue where we'd try to hit the endpoint before it was updated, resulting in
// request timeouts against the previous pod's ip. So make sure the endpoint ip has changed before
// hitting it.
err = wait.Poll(1*time.Second, 1*time.Minute, func() (bool, error) {
newEndpoint, err := oc.KubeFramework().ClientSet.Core().Endpoints(oc.Namespace()).Get(dcName, metav1.GetOptions{})
if err != nil {
return false, err
}
if newEndpoint.Subsets[0].Addresses[0].IP == oldEndpoint.Subsets[0].Addresses[0].IP {
return false, nil
}
e2e.Logf("old endpoint was %#v, new endpoint is %#v", oldEndpoint, newEndpoint)
return true, nil
})
o.Expect(err).NotTo(o.HaveOccurred())
// now hot deploy is enabled, a change to welcome_controller.rb
// should affect the app
g.By("modifying the source code with enabled hot deploy")
assertPageContent("Welcome to your Rails application on OpenShift", dcLabelTwo)
err = RunInPodContainer(oc, dcLabelTwo, modifyCommand)
o.Expect(err).NotTo(o.HaveOccurred())
err = RunInPodContainer(oc, dcLabelTwo, removeCommand)
o.Expect(err).NotTo(o.HaveOccurred())
assertPageContent("Hello, Rails!", dcLabelTwo)
})
})
})
})