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Merge pull request #36022 from janetkuo/statefulset-e2e-hostname 

Automatic merge from submit-queue

StatefulSet e2e: verify stateful pod hostname

cc @erictune @foxish @kubernetes/sig-apps
pull/6/head
Kubernetes Submit Queue 2016-11-04 01:53:27 -07:00 committed by GitHub
parent 4280eed6b2 76ab3a45b7
commit ccaba2ccd2
1 changed files with 18 additions and 1 deletions
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19
test/e2e/petset.go
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@ -125,11 +125,14 @@ var _ = framework.KubeDescribe("StatefulSet [Slow] [Feature:PetSet]", func() {
By("Verifying statefulset mounted data directory is usable")
ExpectNoError(pst.checkMount(ps, "/data"))
By("Verifying statefulset provides a stable hostname for each pod")
ExpectNoError(pst.checkHostname(ps))
cmd := "echo $(hostname) > /data/hostname; sync;"
By("Running " + cmd + " in all pets")
ExpectNoError(pst.execInPets(ps, cmd))
By("Restarting pet set " + ps.Name)
By("Restarting statefulset " + ps.Name)
pst.restart(ps)
pst.saturate(ps)
@ -572,6 +575,20 @@ func (p *statefulSetTester) execInPets(ps *apps.StatefulSet, cmd string) error {
return nil
}
func (p *statefulSetTester) checkHostname(ps *apps.StatefulSet) error {
cmd := "printf $(hostname)"
podList := p.getPodList(ps)
for _, pet := range podList.Items {
hostname, err := framework.RunHostCmd(pet.Namespace, pet.Name, cmd)
if err != nil {
return err
}
if hostname != pet.Name {
return fmt.Errorf("unexpected hostname (%s) and stateful pod name (%s) not equal", hostname, pet.Name)
}
}
return nil
}
func (p *statefulSetTester) saturate(ps *apps.StatefulSet) {
// TODO: Watch events and check that creation timestamps don't overlap
var i int32