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Add release notes for v1.2.1 and cleanup/unify formatting/layout.
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k8s-merge-robot committed Apr 2, 2016
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<!-- BEGIN MUNGE: GENERATED_TOC -->

- [Release Notes for Kubernetes v1.3.0-alpha.1](#release-notes-for-kubernetes-v130-alpha1)
- [[Documentation](http://kubernetes.github.io) & [Examples](http://releases.k8s.io/HEAD/examples)](#documentationhttpkubernetesgithubio--exampleshttpreleasesk8sioheadexamples)
- [v1.2.1](#v121)
- [Downloads](#downloads)
- [Changes since v1.2.0 (last PR #23530)](#changes-since-v120-last-pr-23530)
- [Changes since v1.2.0](#changes-since-v120)
- [Other notable changes](#other-notable-changes)
- [v1.3.0-alpha.1](#v130-alpha1)
- [Downloads](#downloads)
- [Changes since v1.2.0](#changes-since-v120)
- [Action Required](#action-required)
- [Other notable changes](#other-notable-changes)
- [Release Notes for Kubernetes 1.2.0](#release-notes-for-kubernetes-120)
- [[Documentation](http://kubernetes.github.io) & [Examples](http://releases.k8s.io/release-1.2/examples)](#documentationhttpkubernetesgithubio--exampleshttpreleasesk8siorelease-12examples)
- [v1.2.0](#v120)
- [Downloads](#downloads)
- [Changes since v1.1.1](#changes-since-v111)
- [Major Themes](#major-themes)
- [Other notable improvements](#other-notable-improvements)
- [Experimental Features](#experimental-features)
- [Action required](#action-required)
- [Known Issues](#known-issues)
- [Docker Known Issues](#docker-known-issues)
- [1.9.1](#191)
- [Provider-specific Notes](#provider-specific-notes)
- [Various](#various)
- [AWS](#aws)
- [GCE](#gce)
- [Changelog](#changelog)
- [Major Themes](#major-themes)
- [Other notable improvements](#other-notable-improvements)
- [Experimental Features](#experimental-features)
- [Action required](#action-required)
- [Known Issues](#known-issues)
- [Docker Known Issues](#docker-known-issues)
- [1.9.1](#191)
- [Provider-specific Notes](#provider-specific-notes)
- [Various](#various)
- [AWS](#aws)
- [GCE](#gce)

<!-- END MUNGE: GENERATED_TOC -->

<!-- NEW RELEASE NOTES ENTRY -->

# Release Notes for Kubernetes v1.3.0-alpha.1
# v1.2.1

[Documentation](http://kubernetes.github.io) & [Examples](http://releases.k8s.io/release-1.2/examples)

## Downloads

binary | sha1 hash | md5 hash
------ | --------- | --------
[kubernetes.tar.gz](https://storage.googleapis.com/kubernetes-release/release/v1.2.1/kubernetes.tar.gz) | `1639807c5788e1c6b1ab51fd30b723fb5debd865` | `235a1da47972c96a560d718d3256ca4f`

## Changes since v1.2.0

### Other notable changes

* AWS: Fix problems with >2 security groups ([#23718](https://github.com/kubernetes/kubernetes/pull/23718), [@justinsb](https://github.com/justinsb))
* AWS: Fix problems with >2 security groups ([#23340](https://github.com/kubernetes/kubernetes/pull/23340), [@justinsb](https://github.com/justinsb))
* IngressTLS: allow secretName to be blank for SNI routing ([#23707](https://github.com/kubernetes/kubernetes/pull/23707), [@tam7t](https://github.com/tam7t))
* IngressTLS: allow secretName to be blank for SNI routing ([#23500](https://github.com/kubernetes/kubernetes/pull/23500), [@tam7t](https://github.com/tam7t))
* Heapster patch release to 1.0.2 ([#23487](https://github.com/kubernetes/kubernetes/pull/23487), [@piosz](https://github.com/piosz))
* Remove unnecessary override of /etc/init.d/docker on containervm image. ([#23593](https://github.com/kubernetes/kubernetes/pull/23593), [@dchen1107](https://github.com/dchen1107))
* Change kube-proxy & fluentd CPU request to 20m/80m. ([#23646](https://github.com/kubernetes/kubernetes/pull/23646), [@cjcullen](https://github.com/cjcullen))
* make docker-checker more robust ([#23662](https://github.com/kubernetes/kubernetes/pull/23662), [@ArtfulCoder](https://github.com/ArtfulCoder))
* validate that daemonsets don't have empty selectors on creation ([#23530](https://github.com/kubernetes/kubernetes/pull/23530), [@mikedanese](https://github.com/mikedanese))
* don't sync deployment when pod selector is empty ([#23467](https://github.com/kubernetes/kubernetes/pull/23467), [@mikedanese](https://github.com/mikedanese))
* Support differentiation of OS distro in e2e tests ([#23466](https://github.com/kubernetes/kubernetes/pull/23466), [@andyzheng0831](https://github.com/andyzheng0831))
* don't sync daemonsets with selectors that match all pods ([#23223](https://github.com/kubernetes/kubernetes/pull/23223), [@mikedanese](https://github.com/mikedanese))
* Trusty: Avoid reaching GCE custom metadata size limit ([#22818](https://github.com/kubernetes/kubernetes/pull/22818), [@andyzheng0831](https://github.com/andyzheng0831))
* Update kubectl help for 1.2 resources ([#23305](https://github.com/kubernetes/kubernetes/pull/23305), [@janetkuo](https://github.com/janetkuo))
* Removing URL query param from swagger UI to fix the XSS issue ([#23234](https://github.com/kubernetes/kubernetes/pull/23234), [@nikhiljindal](https://github.com/nikhiljindal))
* Fix hairpin mode ([#23325](https://github.com/kubernetes/kubernetes/pull/23325), [@MurgaNikolay](https://github.com/MurgaNikolay))
* Bump to container-vm-v20160321 ([#23313](https://github.com/kubernetes/kubernetes/pull/23313), [@zmerlynn](https://github.com/zmerlynn))
* Remove the restart-kube-proxy and restart-apiserver functions ([#23180](https://github.com/kubernetes/kubernetes/pull/23180), [@roberthbailey](https://github.com/roberthbailey))
* Copy annotations back from RS to Deployment on rollback ([#23160](https://github.com/kubernetes/kubernetes/pull/23160), [@janetkuo](https://github.com/janetkuo))
* Trusty: Support hybrid cluster with nodes on ContainerVM ([#23079](https://github.com/kubernetes/kubernetes/pull/23079), [@andyzheng0831](https://github.com/andyzheng0831))
* update expose command description to add deployment ([#23246](https://github.com/kubernetes/kubernetes/pull/23246), [@AdoHe](https://github.com/AdoHe))
* Add a rate limiter to the GCE cloudprovider ([#23019](https://github.com/kubernetes/kubernetes/pull/23019), [@alex-mohr](https://github.com/alex-mohr))
* Add a Deployment example for kubectl expose. ([#23222](https://github.com/kubernetes/kubernetes/pull/23222), [@madhusudancs](https://github.com/madhusudancs))
* Use versioned object when computing patch ([#23145](https://github.com/kubernetes/kubernetes/pull/23145), [@liggitt](https://github.com/liggitt))
* kubelet: send all recevied pods in one update ([#23141](https://github.com/kubernetes/kubernetes/pull/23141), [@yujuhong](https://github.com/yujuhong))
* Add a SSHKey sync check to the master's healthz (when using SSHTunnels). ([#23167](https://github.com/kubernetes/kubernetes/pull/23167), [@cjcullen](https://github.com/cjcullen))
* Validate minimum CPU limits to be >= 10m ([#23143](https://github.com/kubernetes/kubernetes/pull/23143), [@vishh](https://github.com/vishh))
* kubernetes/kubernetes#23034 Fix controller-manager race condition issue which cause endpoints flush during restart ([#23035](https://github.com/kubernetes/kubernetes/pull/23035), [@xinxiaogang](https://github.com/xinxiaogang))
* MESOS: forward globally declared cadvisor housekeeping flags ([#22974](https://github.com/kubernetes/kubernetes/pull/22974), [@jdef](https://github.com/jdef))
* Trusty: support developer workflow on base image ([#22960](https://github.com/kubernetes/kubernetes/pull/22960), [@andyzheng0831](https://github.com/andyzheng0831))

# v1.3.0-alpha.1

## [Documentation](http://kubernetes.github.io) & [Examples](http://releases.k8s.io/HEAD/examples)
[Documentation](http://kubernetes.github.io) & [Examples](http://releases.k8s.io/HEAD/examples)

## Downloads

binary | sha1 hash | md5 hash
------ | --------- | --------
[kubernetes.tar.gz](https://storage.googleapis.com/kubernetes-release/release/v1.3.0-alpha.1/kubernetes.tar.gz) | `e0041b08e220a4704ea2ad90a6ec7c8f2120c2d3` | `7bb2df32aea94678f72a8d1f43a12098`

## Changes since v1.2.0 (last PR #23530)
## Changes since v1.2.0

### Action Required

Expand Down Expand Up @@ -71,9 +117,9 @@ binary | sha1 hash | md5 hash
* update wide option output ([#22772](https://github.com/kubernetes/kubernetes/pull/22772), [@AdoHe](https://github.com/AdoHe))
* Change scheduler logic from random to round-robin ([#22430](https://github.com/kubernetes/kubernetes/pull/22430), [@gmarek](https://github.com/gmarek))

# Release Notes for Kubernetes 1.2.0
# v1.2.0

## [Documentation](http://kubernetes.github.io) & [Examples](http://releases.k8s.io/release-1.2/examples)
[Documentation](http://kubernetes.github.io) & [Examples](http://releases.k8s.io/release-1.2/examples)

## Downloads

Expand All @@ -83,7 +129,7 @@ binary | sha1 hash | md5 hash

## Changes since v1.1.1

## Major Themes
### Major Themes

* <strong>Significant scale improvements</strong>. Increased cluster scale by 400% to 1000 nodes with 30,000 pods per cluster.
Kubelet supports 100 pods per node with 4x reduced system overhead.
Expand Down Expand Up @@ -120,7 +166,7 @@ interacting with the system. Note: the GUI is enabled by default in 1.2 clusters

<img src="docs/images/newgui.png" width="" alt="Dashboard UI screenshot showing cards that represent applications that run inside a cluster" title="Dashboard UI apps screen">

## Other notable improvements
### Other notable improvements

* Job was Beta in 1.1 and is GA in 1.2 .
* <code>apiVersion: batch/v1 </code>is now available. You now do not need to specify the <code>.spec.selector</code> field — a [unique selector is automatically generated ](http://kubernetes.io/docs/user-guide/jobs/#pod-selector)for you.
Expand Down Expand Up @@ -186,7 +232,7 @@ Pod’s SELinux context, if specified
Volumes (SMB 2.1 and 3.0) into a Pod. See [example](https://github.com/kubernetes/kubernetes/blob/release-1.2/examples/azure_file/README.md) for details.
* Logs usage and root filesystem usage of a container, volumes usage of a pod and node disk usage are exposed through Kubelet new metrics API.

## Experimental Features
### Experimental Features

* Dynamic Provisioning of PersistentVolumes: Kubernetes previously required all
volumes to be manually provisioned by a cluster administrator before use. With
Expand Down Expand Up @@ -218,7 +264,7 @@ volume plugin path on each kubelet node. This is an alpha feature and may
change in future.
* Kubelet exposes a new Alpha metrics API - /stats/summary in a user friendly format with reduced system overhead. The measurement is done in PR [#22542](https://github.com/kubernetes/kubernetes/pull/22542).

## Action required
### Action required

* Docker v1.9.1 is officially recommended. Docker v1.8.3 and Docker v1.10 are
supported. If you are using an older release of Docker, please upgrade. Known
Expand Down Expand Up @@ -290,7 +336,7 @@ change. More details [here](https://docs.influxdata.com/influxdb/v0.9/administra
* We have renamed “minions” to “nodes”. If you were specifying NUM\_MINIONS or
MINION\_SIZE to kube-up, you should now specify NUM\_NODES or NODE\_SIZE.

## Known Issues
### Known Issues

* Paused deployments can't be resized and don't clean up old ReplicaSets.
* Minimum memory limit is 4MB. This is a docker limitation
Expand Down Expand Up @@ -325,9 +371,9 @@ rollout” commands instead, if you want to rolling update Replica Sets.
* When live upgrading Kubelet to 1.2 without draining the pods running on the node,
the containers will be restarted by Kubelet (see details in [#23104](https://github.com/kubernetes/kubernetes/issues/23104)).

### Docker Known Issues
#### Docker Known Issues

#### 1.9.1
##### 1.9.1

* Listing containers can be slow at times which will affect kubelet performance.
More information [here](https://github.com/docker/docker/issues/17720)
Expand All @@ -338,15 +384,15 @@ restarting the daemon alleviates this issue, but hasn’t been verified to
completely eliminate the IP allocation issue. More information [here](https://github.com/kubernetes/kubernetes/issues/21523#issuecomment-191498969)
* Daemon becomes unresponsive (rarely) due to kernel deadlocks. More information [here](https://github.com/kubernetes/kubernetes/issues/21866#issuecomment-189492391)

## Provider-specific Notes
### Provider-specific Notes

### Various
#### Various

Core changes:

* Support for load balancers with source ranges

### AWS
#### AWS

Core changes:

Expand All @@ -368,27 +414,10 @@ With kube-up:
* Use an elastic IP for the master by default
* Experimental support for node spot instances (set NODE\_SPOT\_PRICE=0.05)

### GCE
#### GCE

* Ubuntu Trusty support added

## Changelog

(Linked [github releases](https://github.com/kubernetes/kubernetes/releases) 1.2.0-beta-1 to 1.1.2 that are part of 1.2.0)

* [v1.2.0-beta.1](https://github.com/kubernetes/kubernetes/releases/tag/v1.2.0-beta.1)
* [v1.2.0-beta.0](https://github.com/kubernetes/kubernetes/releases/tag/v1.2.0-beta.0)
* [v1.2.0-alpha.8](https://github.com/kubernetes/kubernetes/releases/tag/v1.2.0-alpha.8)
* [v1.2.0-alpha.7](https://github.com/kubernetes/kubernetes/releases/tag/v1.2.0-alpha.7)
* [v1.2.0-alpha.6](https://github.com/kubernetes/kubernetes/releases/tag/v1.2.0-alpha.6)
* [v1.2.0-alpha.5](https://github.com/kubernetes/kubernetes/releases/tag/v1.2.0-alpha.5)
* [v1.2.0-alpha.4](https://github.com/kubernetes/kubernetes/releases/tag/v1.2.0-alpha.4)
* [v1.1.8](https://github.com/kubernetes/kubernetes/releases/tag/v1.1.8)
* [v1.1.7](https://github.com/kubernetes/kubernetes/releases/tag/v1.1.7)
* [v1.1.4](https://github.com/kubernetes/kubernetes/releases/tag/v1.1.4)
* [v1.1.3](https://github.com/kubernetes/kubernetes/releases/tag/v1.1.3)
* [v1.1.2](https://github.com/kubernetes/kubernetes/releases/tag/v1.1.2)

Please see the [Releases Page](https://github.com/kubernetes/kubernetes/releases) for older releases.


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TeamCity OSS :: Kubernetes Mesos :: 4 - Smoke Tests Build 20421 outcome was SUCCESS
Summary: Tests passed: 1, ignored: 267 Build time: 00:10:40

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