From b68da99b22614f0207645b3df2566f6187c571d2 Mon Sep 17 00:00:00 2001 From: Brian Elliott Date: Fri, 28 Sep 2012 03:43:33 +0000 Subject: Num instances scheduler filter Allow for scheduler filtering based on number of instances already assigned to that host. FLAGS.max_instances_per_host controls the maximum number of instances allowed per host. Change-Id: Id3e8973311ea5ac8db2d9e4e594a5288a9e3f94d --- nova/tests/scheduler/test_host_filters.py | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'nova/tests') diff --git a/nova/tests/scheduler/test_host_filters.py b/nova/tests/scheduler/test_host_filters.py index b1e1ec897..bc62ad6f1 100644 --- a/nova/tests/scheduler/test_host_filters.py +++ b/nova/tests/scheduler/test_host_filters.py @@ -1292,5 +1292,19 @@ class HostFiltersTestCase(test.TestCase): filt_cls = self.class_map['IoOpsFilter']() host = fakes.FakeHostState('host1', 'compute', {'num_io_ops': 8}) + + def test_filter_num_instances_passes(self): + self.flags(max_instances_per_host=5) + filt_cls = self.class_map['NumInstancesFilter']() + host = fakes.FakeHostState('host1', 'compute', + {'num_instances': 4}) + filter_properties = {} + self.assertTrue(filt_cls.host_passes(host, filter_properties)) + + def test_filter_num_instances_fails(self): + self.flags(max_instances_per_host=5) + filt_cls = self.class_map['NumInstancesFilter']() + host = fakes.FakeHostState('host1', 'compute', + {'num_instances': 5}) filter_properties = {} self.assertFalse(filt_cls.host_passes(host, filter_properties)) -- cgit