Add option to require API tokens to exist in admission

e2e: call coreDump always when a report dir is specified

Fixed flakiness of e2e reboot test.

Use blank default for old-etcd-prefix

Use the same redis configs in examples/guestbook-go as in examples/guestbook

make service_account e2e test verify that RootCA cert file exists

Don't repeat field name in errors

Do not hardcode version

Fix imagePullSecrets example.

Removed cluster/saltbase/salt/_states/container_bridge.py since it is…

Ansible improvements to support more addons and better cert/token handling

examples/cassandra - create the service before any pod is started

Fewer knobs == more winning. Also rename from kube.local to
cluster.local. Some e2e tests really want that.

We can now revoke one token at a time!

Before we used the kubecfg certificate for everything. Mint one token
for each service and push it around where it belongs.

Wait until a token shows up to start addons (redux)

Fixed flakiness of e2e reboot test caused by restarts of pods with liviness probe during node reboot. Fixes #9062.

The version is inferred automatically by client.New in
SetKubernetesDefaults(), and also negotiated.

bug: fix possible nil pointer derefrence in test

Add `kubetcl patch`

Fix broken TOC links.

Ubuntu cluster: run flannel on master

Add explicit dependency of docker pkg on the deb download

Add command "kubectl replace"

gce getting started clarifications