Multiple e2e jobs are failing

[MrHohn]

Ref https://k8s-testgrid.appspot.com/sig-network-ingress-gce-e2e#Summary. Below test jobs are failing since 1/10/2018:

• https://k8s-testgrid.appspot.com/sig-network-ingress-gce-e2e#ingress-gce-e2e
• https://k8s-testgrid.appspot.com/sig-network-ingress-gce-e2e#ingress-gce-e2e-multi-zone
• https://k8s-testgrid.appspot.com/sig-network-ingress-gce-e2e#ingress-gce-e2e-scale
• https://k8s-testgrid.appspot.com/sig-network-ingress-gce-e2e#ingress-gce-downgrade-e2e

Likely some recent change broke the head? From the timestamp, probably #590?

Some errors from GCLB logs (https://storage.googleapis.com/kubernetes-jenkins/logs/ci-ingress-gce-e2e/3822/artifacts/e2e-3822-58614-master/glbc.log):

E0114 14:31:54.681044       1 taskqueue.go:62] Requeuing "ingress-3548/echoheaders-https" due to error: error running post-process routine: update ingress status error: ingresses.extensions "echoheaders-https" not found (ingresses)
...
E0114 14:49:22.544623       1 taskqueue.go:62] Requeuing "ingress-3942/multiple-certs" due to error: error running post-process routine: update ingress status error: ingresses.extensions "multiple-certs" not found (ingresses)
...
E0114 16:44:21.380627       1 taskqueue.go:62] Requeuing "ingress-6176/echomap" due to error: error running post-process routine: update ingress status error: ingresses.extensions "echomap" not found (ingresses)
...
E0114 13:13:36.986365       1 taskqueue.go:62] Requeuing "ingress-9079/hostname" due to error: error running post-process routine: update ingress status error: ingresses.extensions "hostname" not found (ingresses)

cc @agau4779 @rramkumar1

[MrHohn]

All tests are green now, thanks!