Automatic merge from submit-queue
Remove alpha provisioning
This is the first part of https://github.com/kubernetes/features/issues/36
@kubernetes/sig-storage-misc
**Release note**:
```release-note
Alpha version of dynamic volume provisioning is removed in this release. Annotation
"volume.alpha.kubernetes.io/storage-class" does not have any special meaning. A default storage class
and DefaultStorageClass admission plugin can be used to preserve similar behavior of Kubernetes cluster,
see https://kubernetes.io/docs/user-guide/persistent-volumes/#class-1 for details.
```
...by removing the liveness/readiness probes from the cockroachdb
manifests, as explained in
github.com/kubernetes/test-infra/issues/1740#issuecomment-279555187
Automatic merge from submit-queue (batch tested with PRs 40335, 40320, 40324, 39103, 40315)
Add pod anti-affinity and a disruption budget to cockroachdb example
Pulling in some useful 1.5 features.
* Use an init container to eliminate potential edge case where losing
the first pet's could cause it to start a second logical cluster
* Exec the cockroach binary so that it runs as PID 1 in the container
* Make some small improvements to the README
That was only included in the initial config due to cargo-culting, and
has the potential to break node startup if it resolves its own address
to gossip to.
Automatic merge from submit-queue
Productionize the cockroachdb example a little more
Includes:
* A service for clients to use
* Readiness/liveness probes
* An extended graceful termination period
* Automatic prometheus monitoring (when prometheus is configured to watch for annotations on services, as in [CoreOS's recent blog post](https://coreos.com/blog/prometheus-and-kubernetes-up-and-running.html), for example)
I'm leaving the management of certs to future work, but if anyone that sees this needs help with them in the meantime, don't hesitate to reach out.
Successor to #28446
@bprashanth - if you're still interested in / open to an e2e test (as mentioned in https://github.com/cockroachdb/cockroach/issues/5967#issuecomment-230188807), let me know and I'll put one together. If so, I assume you'd want it as part of the `petset` test group rather than the `examples` tests?
cc @tschottdorf
**Release note**:
```release-note
NONE
```
Includes:
* A service for clients to use
* Readiness/liveness probes
* An extended graceful termination period
* Easy clean-up of all created resources
Shyam JVS