var _ = g.Describe("[image_ecosystem][mongodb][Slow] openshift mongodb replication (with petset)", func() {
defer g.GinkgoRecover()
const templatePath = "https://raw.githubusercontent.com/sclorg/mongodb-container/master/examples/petset/mongodb-petset-persistent.yaml"
oc := exutil.NewCLI("mongodb-petset-replica", exutil.KubeConfigPath()).Verbose()
g.Describe("creating from a template", func() {
g.It(fmt.Sprintf("should process and create the %q template", templatePath), func() {
oc.SetOutputDir(exutil.TestContext.OutputDir)
g.By("creating persistent volumes")
_, err := exutil.SetupHostPathVolumes(
oc.AdminKubeREST().PersistentVolumes(),
oc.Namespace(),
"256Mi",
3,
)
o.Expect(err).NotTo(o.HaveOccurred())
defer func() {
// We're removing only PVs because all other things will be removed
// together with namespace.
err := exutil.CleanupHostPathVolumes(oc.AdminKubeREST().PersistentVolumes(), oc.Namespace())
if err != nil {
fmt.Fprintf(g.GinkgoWriter, "WARNING: couldn't cleanup persistent volumes: %v", err)
}
}()
g.By("creating a new app")
o.Expect(
func replicationTestFactory(oc *exutil.CLI, template string) func() {
return func() {
oc.SetOutputDir(exutil.TestContext.OutputDir)
defer cleanup(oc)
_, err := exutil.SetupHostPathVolumes(oc.AdminKubeREST().PersistentVolumes(), oc.Namespace(), "512Mi", 1)
o.Expect(err).NotTo(o.HaveOccurred())
err = testutil.WaitForPolicyUpdate(oc.REST(), oc.Namespace(), "create", "templates", true)
o.Expect(err).NotTo(o.HaveOccurred())
err = oc.Run("new-app").Args("-f", template).Execute()
o.Expect(err).NotTo(o.HaveOccurred())
err = oc.Run("new-app").Args("-f", helperTemplate, "-p", fmt.Sprintf("DATABASE_SERVICE_NAME=%s", helperName)).Execute()
o.Expect(err).NotTo(o.HaveOccurred())
err = oc.KubeFramework().WaitForAnEndpoint(helperName)
o.Expect(err).NotTo(o.HaveOccurred())
tableCounter := 0
assertReplicationIsWorking := func(masterDeployment, slaveDeployment string, slaveCount int) (exutil.Database, []exutil.Database, exutil.Database) {
tableCounter++
table := fmt.Sprintf("table_%0.2d", tableCounter)
master, slaves, helper := CreateMySQLReplicationHelpers(oc.KubeREST().Pods(oc.Namespace()), masterDeployment, slaveDeployment, fmt.Sprintf("%s-1", helperName), slaveCount)
o.Expect(exutil.WaitUntilAllHelpersAreUp(oc, []exutil.Database{master, helper})).NotTo(o.HaveOccurred())
o.Expect(exutil.WaitUntilAllHelpersAreUp(oc, slaves)).NotTo(o.HaveOccurred())
// Test if we can query as root
oc.KubeFramework().WaitForAnEndpoint("mysql-master")
err := helper.TestRemoteLogin(oc, "mysql-master")
o.Expect(err).NotTo(o.HaveOccurred())
// Create a new table with random name
_, err = master.Query(oc, fmt.Sprintf("CREATE TABLE %s (col1 VARCHAR(20), col2 VARCHAR(20));", table))
o.Expect(err).NotTo(o.HaveOccurred())
// Write new data to the table through master
_, err = master.Query(oc, fmt.Sprintf("INSERT INTO %s (col1, col2) VALUES ('val1', 'val2');", table))
o.Expect(err).NotTo(o.HaveOccurred())
// Make sure data is present on master
err = exutil.WaitForQueryOutput(oc, master, 10*time.Second, false, fmt.Sprintf("SELECT * FROM %s\\G;", table), "col1: val1\ncol2: val2")
o.Expect(err).NotTo(o.HaveOccurred())
// Make sure data was replicated to all slaves
for _, slave := range slaves {
err = exutil.WaitForQueryOutput(oc, slave, 90*time.Second, false, fmt.Sprintf("SELECT * FROM %s\\G;", table), "col1: val1\ncol2: val2")
o.Expect(err).NotTo(o.HaveOccurred())
}
return master, slaves, helper
}
g.By("after initial deployment")
master, _, _ := assertReplicationIsWorking("mysql-master-1", "mysql-slave-1", 1)
g.By("after master is restarted by changing the Deployment Config")
err = oc.Run("env").Args("dc", "mysql-master", "MYSQL_ROOT_PASSWORD=newpass").Execute()
o.Expect(err).NotTo(o.HaveOccurred())
err = exutil.WaitUntilPodIsGone(oc.KubeREST().Pods(oc.Namespace()), master.PodName(), 1*time.Minute)
master, _, _ = assertReplicationIsWorking("mysql-master-2", "mysql-slave-1", 1)
g.By("after master is restarted by deleting the pod")
err = oc.Run("delete").Args("pod", "-l", "deployment=mysql-master-2").Execute()
o.Expect(err).NotTo(o.HaveOccurred())
err = exutil.WaitUntilPodIsGone(oc.KubeREST().Pods(oc.Namespace()), master.PodName(), 1*time.Minute)
o.Expect(err).NotTo(o.HaveOccurred())
_, slaves, _ := assertReplicationIsWorking("mysql-master-2", "mysql-slave-1", 1)
g.By("after slave is restarted by deleting the pod")
err = oc.Run("delete").Args("pod", "-l", "deployment=mysql-slave-1").Execute()
o.Expect(err).NotTo(o.HaveOccurred())
err = exutil.WaitUntilPodIsGone(oc.KubeREST().Pods(oc.Namespace()), slaves[0].PodName(), 1*time.Minute)
o.Expect(err).NotTo(o.HaveOccurred())
assertReplicationIsWorking("mysql-master-2", "mysql-slave-1", 1)
pods, err := oc.KubeREST().Pods(oc.Namespace()).List(kapi.ListOptions{LabelSelector: exutil.ParseLabelsOrDie("deployment=mysql-slave-1")})
o.Expect(err).NotTo(o.HaveOccurred())
o.Expect(len(pods.Items)).To(o.Equal(1))
g.By("after slave is scaled to 0 and then back to 4 replicas")
err = oc.Run("scale").Args("dc", "mysql-slave", "--replicas=0").Execute()
o.Expect(err).NotTo(o.HaveOccurred())
err = exutil.WaitUntilPodIsGone(oc.KubeREST().Pods(oc.Namespace()), pods.Items[0].Name, 1*time.Minute)
o.Expect(err).NotTo(o.HaveOccurred())
err = oc.Run("scale").Args("dc", "mysql-slave", "--replicas=4").Execute()
o.Expect(err).NotTo(o.HaveOccurred())
assertReplicationIsWorking("mysql-master-2", "mysql-slave-1", 4)
}
}
func replicationTestFactory(oc *exutil.CLI, tc testCase) func() {
return func() {
oc.SetOutputDir(exutil.TestContext.OutputDir)
defer cleanup(oc)
_, err := exutil.SetupHostPathVolumes(oc.AdminKubeClient().Core().PersistentVolumes(), oc.Namespace(), "1Gi", 2)
o.Expect(err).NotTo(o.HaveOccurred())
err = testutil.WaitForPolicyUpdate(oc.Client(), oc.Namespace(), "create", templateapi.Resource("templates"), true)
o.Expect(err).NotTo(o.HaveOccurred())
exutil.CheckOpenShiftNamespaceImageStreams(oc)
err = oc.Run("new-app").Args("-f", tc.TemplatePath).Execute()
o.Expect(err).NotTo(o.HaveOccurred())
err = oc.Run("new-app").Args("-f", helperTemplate, "-p", fmt.Sprintf("DATABASE_SERVICE_NAME=%s", helperName)).Execute()
o.Expect(err).NotTo(o.HaveOccurred())
// oc.KubeFramework().WaitForAnEndpoint currently will wait forever; for now, prefacing with our WaitForADeploymentToComplete,
// which does have a timeout, since in most cases a failure in the service coming up stems from a failed deployment
g.By("waiting for the deployment to complete")
err = exutil.WaitForADeploymentToComplete(oc.KubeClient().Core().ReplicationControllers(oc.Namespace()), helperName, oc)
o.Expect(err).NotTo(o.HaveOccurred())
g.By("waiting for an endpoint")
err = oc.KubeFramework().WaitForAnEndpoint(helperName)
o.Expect(err).NotTo(o.HaveOccurred())
tableCounter := 0
assertReplicationIsWorking := func(masterDeployment, slaveDeployment string, slaveCount int) (exutil.Database, []exutil.Database, exutil.Database) {
tableCounter++
table := fmt.Sprintf("table_%0.2d", tableCounter)
g.By("creating replication helpers")
master, slaves, helper := CreateMySQLReplicationHelpers(oc.KubeClient().Core().Pods(oc.Namespace()), masterDeployment, slaveDeployment, fmt.Sprintf("%s-1", helperName), slaveCount)
o.Expect(exutil.WaitUntilAllHelpersAreUp(oc, []exutil.Database{master, helper})).NotTo(o.HaveOccurred())
o.Expect(exutil.WaitUntilAllHelpersAreUp(oc, slaves)).NotTo(o.HaveOccurred())
// Test if we can query as root
g.By("wait for mysql-master endpoint")
oc.KubeFramework().WaitForAnEndpoint("mysql-master")
err := helper.TestRemoteLogin(oc, "mysql-master")
o.Expect(err).NotTo(o.HaveOccurred())
// Create a new table with random name
g.By("create new table")
_, err = master.Query(oc, fmt.Sprintf("CREATE TABLE %s (col1 VARCHAR(20), col2 VARCHAR(20));", table))
o.Expect(err).NotTo(o.HaveOccurred())
// Write new data to the table through master
_, err = master.Query(oc, fmt.Sprintf("INSERT INTO %s (col1, col2) VALUES ('val1', 'val2');", table))
o.Expect(err).NotTo(o.HaveOccurred())
// Make sure data is present on master
err = exutil.WaitForQueryOutputContains(oc, master, 10*time.Second, false, fmt.Sprintf("SELECT * FROM %s\\G;", table), "col1: val1\ncol2: val2")
o.Expect(err).NotTo(o.HaveOccurred())
// Make sure data was replicated to all slaves
for _, slave := range slaves {
err = exutil.WaitForQueryOutputContains(oc, slave, 90*time.Second, false, fmt.Sprintf("SELECT * FROM %s\\G;", table), "col1: val1\ncol2: val2")
o.Expect(err).NotTo(o.HaveOccurred())
}
return master, slaves, helper
}
g.By("after initial deployment")
master, _, _ := assertReplicationIsWorking("mysql-master-1", "mysql-slave-1", 1)
if tc.SkipReplication {
return
}
g.By("after master is restarted by changing the Deployment Config")
err = oc.Run("env").Args("dc", "mysql-master", "MYSQL_ROOT_PASSWORD=newpass").Execute()
o.Expect(err).NotTo(o.HaveOccurred())
err = exutil.WaitUntilPodIsGone(oc.KubeClient().Core().Pods(oc.Namespace()), master.PodName(), 1*time.Minute)
master, _, _ = assertReplicationIsWorking("mysql-master-2", "mysql-slave-1", 1)
g.By("after master is restarted by deleting the pod")
err = oc.Run("delete").Args("pod", "-l", "deployment=mysql-master-2").Execute()
o.Expect(err).NotTo(o.HaveOccurred())
err = exutil.WaitUntilPodIsGone(oc.KubeClient().Core().Pods(oc.Namespace()), master.PodName(), 1*time.Minute)
o.Expect(err).NotTo(o.HaveOccurred())
_, slaves, _ := assertReplicationIsWorking("mysql-master-2", "mysql-slave-1", 1)
g.By("after slave is restarted by deleting the pod")
err = oc.Run("delete").Args("pod", "-l", "deployment=mysql-slave-1").Execute()
o.Expect(err).NotTo(o.HaveOccurred())
err = exutil.WaitUntilPodIsGone(oc.KubeClient().Core().Pods(oc.Namespace()), slaves[0].PodName(), 1*time.Minute)
o.Expect(err).NotTo(o.HaveOccurred())
assertReplicationIsWorking("mysql-master-2", "mysql-slave-1", 1)
pods, err := oc.KubeClient().Core().Pods(oc.Namespace()).List(kapi.ListOptions{LabelSelector: exutil.ParseLabelsOrDie("deployment=mysql-slave-1")})
o.Expect(err).NotTo(o.HaveOccurred())
o.Expect(len(pods.Items)).To(o.Equal(1))
// NOTE: Commented out, current template does not support multiple replicas.
/*
g.By("after slave is scaled to 0 and then back to 4 replicas")
err = oc.Run("scale").Args("dc", "mysql-slave", "--replicas=0").Execute()
o.Expect(err).NotTo(o.HaveOccurred())
err = exutil.WaitUntilPodIsGone(oc.KubeClient().Core().Pods(oc.Namespace()), pods.Items[0].Name, 1*time.Minute)
o.Expect(err).NotTo(o.HaveOccurred())
err = oc.Run("scale").Args("dc", "mysql-slave", "--replicas=4").Execute()
o.Expect(err).NotTo(o.HaveOccurred())
assertReplicationIsWorking("mysql-master-2", "mysql-slave-1", 4)
*/
}
}
