Merge pull request #11627 from davidopp/doc2

Add a known issues doc.

docs/README.md

@@ -55,6 +55,7 @@ Documentation for other releases can be found at
   folder.
 
 * If something went wrong, see the [troubleshooting](troubleshooting.md) document for how to debug.
+You should also check the [known issues](user-guide/known-issues.md) for the release you're using.
 
 
 <!-- BEGIN MUNGE: GENERATED_ANALYTICS -->

docs/troubleshooting.md

@@ -37,6 +37,8 @@ Sometimes things go wrong.  This guide is aimed at making them right.  It has tw
    * [Troubleshooting your application](user-guide/application-troubleshooting.md) - Useful for users who are deploying code into Kubernetes and wondering why it is not working.
    * [Troubleshooting your cluster](admin/cluster-troubleshooting.md) - Useful for cluster administrators and people whose Kubernetes cluster is unhappy.
 
+You should also check the [known issues](user-guide/known-issues.md) for the release you're using.
+
 # Getting help
 
 If your problem isn't answered by any of the guides above, there are variety of ways for you to get help from the Kubernetes team.

docs/user-guide/known-issues.md

@@ -0,0 +1,59 @@
+<!-- BEGIN MUNGE: UNVERSIONED_WARNING -->
+
+<!-- BEGIN STRIP_FOR_RELEASE -->
+
+<img src="http://kubernetes.io/img/warning.png" alt="WARNING"
+     width="25" height="25">
+<img src="http://kubernetes.io/img/warning.png" alt="WARNING"
+     width="25" height="25">
+<img src="http://kubernetes.io/img/warning.png" alt="WARNING"
+     width="25" height="25">
+<img src="http://kubernetes.io/img/warning.png" alt="WARNING"
+     width="25" height="25">
+<img src="http://kubernetes.io/img/warning.png" alt="WARNING"
+     width="25" height="25">
+
+<h2>PLEASE NOTE: This document applies to the HEAD of the source tree</h2>
+
+If you are using a released version of Kubernetes, you should
+refer to the docs that go with that version.
+
+<strong>
+The latest 1.0.x release of this document can be found
+[here](http://releases.k8s.io/release-1.0/docs/user-guide/known-issues.md).
+
+Documentation for other releases can be found at
+[releases.k8s.io](http://releases.k8s.io).
+</strong>
+--
+
+<!-- END STRIP_FOR_RELEASE -->
+
+<!-- END MUNGE: UNVERSIONED_WARNING -->
+
+## Known Issues
+
+This document summarizes known issues with existing Kubernetes releases.
+
+Please consult this document before filing new bugs.
+
+### Release 1.0.1
+
+   * `exec` liveness/readiness probes leak resources due to Docker exec leaking resources (#10659)
+   * `docker load` sometimes hangs which causes the `kube-apiserver` not to start.  Restarting the Docker daemon should fix the issue (#10868)
+   * The kubelet on the master node doesn't register with the `kube-apiserver` so statistics aren't collected for master daemons (#10891)
+   * Heapster and InfluxDB both leak memory (#10653)
+   * Wrong node cpu/memory limit metrics from Heapster (https://github.com/GoogleCloudPlatform/heapster/issues/399)
+   * Services that set `type=LoadBalancer` can not use port `10250` because of Google Compute Engine firewall limitations
+   * Add-on services can not be created or deleted via `kubectl` or the Kubernetes API (#11435)
+   * If a pod with a GCE PD is created and deleted in rapid succession, it may fail to attach/mount correctly leaving PD data inaccessible (or corrupted in the worst case). (https://github.com/GoogleCloudPlatform/kubernetes/issues/11231#issuecomment-122049113)
+      * Suggested temporary work around: introduce a 1-2 minute delay between deleting and recreating a pod with a PD on the same node.
+   * Explicit errors while detaching GCE PD could prevent PD from ever being detached (#11321)
+   * GCE PDs may sometimes fail to attach (#11302)
+   * If multiple Pods use the same RBD volume in read-write mode, it is possible data on the RBD volume could get corrupted. This problem has been found in environments where both apiserver and etcd rebooted and Pods were redistributed.
+      * A workaround is to ensure there is no other Ceph client using the RBD volume before mapping RBD image in read-write mode. For example, `rados -p poolname listwatchers image_name.rbd` can list RBD clients that are mapping the image.
+
+
+<!-- BEGIN MUNGE: GENERATED_ANALYTICS -->
+[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/docs/user-guide/known-issues.md?pixel)]()
+<!-- END MUNGE: GENERATED_ANALYTICS -->