kubelet: Add --exit-on-lock-contention flag

This patch adds the --exit-on-lock-contention flag, which must be used
in conjunction with the --lock-file flag. When provided, it causes the
kubelet to wait for inotify events for that lock file. When an 'open'
event is received, the kubelet will exit.

docs/admin/kubelet.md

@@ -92,6 +92,7 @@ kubelet
       --eviction-pressure-transition-period=5m0s: Duration for which the kubelet has to wait before transitioning out of an eviction pressure condition.
       --eviction-soft="": A set of eviction thresholds (e.g. memory.available<1.5Gi) that if met over a corresponding grace period would trigger a pod eviction.
       --eviction-soft-grace-period="": A set of eviction grace periods (e.g. memory.available=1m30s) that correspond to how long a soft eviction threshold must hold before triggering a pod eviction.
+      --exit-on-lock-contention[=false]: Whether kubelet should exit upon lock-file contention.
       --experimental-flannel-overlay[=false]: Experimental support for starting the kubelet with the default overlay network (flannel). Assumes flanneld is already running in client mode. [default=false]
       --experimental-nvidia-gpus=0: Number of NVIDIA GPU devices on this node. Only 0 (default) and 1 are currently supported.
       --file-check-frequency=20s: Duration between checking config files for new data
@@ -159,7 +160,7 @@ kubelet
       --volume-stats-agg-period=1m0s: Specifies interval for kubelet to calculate and cache the volume disk usage for all pods and volumes.  To disable volume calculations, set to 0.  Default: '1m'
 ```
 
-###### Auto generated by spf13/cobra on 13-May-2016
+###### Auto generated by spf13/cobra on 18-May-2016
 
 
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