Merge pull request #205 from resouer/preemption

Add preempt verb for scheduler

scheduler/scheduler-policy-config-with-extender.json

@@ -0,0 +1,31 @@
+{
+"kind" : "Policy",
+"apiVersion" : "v1",
+"predicates" : [
+	{"name" : "PodFitsHostPorts"},
+	{"name" : "PodFitsResources"},
+	{"name" : "NoDiskConflict"},
+	{"name" : "MatchNodeSelector"},
+	{"name" : "HostName"}
+	],
+"priorities" : [
+	{"name" : "LeastRequestedPriority", "weight" : 1},
+	{"name" : "BalancedResourceAllocation", "weight" : 1},
+	{"name" : "ServiceSpreadingPriority", "weight" : 1},
+	{"name" : "EqualPriority", "weight" : 1}
+	],
+"extenders" : [
+	{
+        "urlPrefix": "http://127.0.0.1:12346/scheduler",
+        "filterVerb": "filter",
+        "bindVerb": "bind",
+        "prioritizeVerb": "prioritize",
+        "preemptVerb": "preempt",
+        "weight": 5,
+        "enableHttps": false,
+        "nodeCacheCapable": false
+	}
+    ],
+"hardPodAffinitySymmetricWeight" : 10,
+"alwaysCheckAllPredicates" : false
+}