# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# under the License.
import copy
import os
import eventlet
import unittest
import mox
from nose.plugins.attrib import attr
from heat.tests.v1_1 import fakes
from heat.common import context
from heat.common import template_format
from heat.engine.resources import autoscaling as asc
from heat.engine.resources import instance
from heat.engine.resources import loadbalancer
from heat.engine import parser
@attr(tag=['unit', 'resource'])
@attr(speed='fast')
[docs]class InstanceGroupTest(unittest.TestCase):
[docs] def setUp(self):
self.fc = fakes.FakeClient()
self.m = mox.Mox()
self.m.StubOutWithMock(loadbalancer.LoadBalancer, 'reload')
[docs] def tearDown(self):
self.m.UnsetStubs()
print "InstanceGroupTest teardown complete"
[docs] def load_template(self):
self.path = os.path.dirname(os.path.realpath(__file__)).\
replace('heat/tests', 'templates')
f = open("%s/InstanceGroup.template" % self.path)
t = template_format.parse(f.read())
f.close()
return t
[docs] def parse_stack(self, t):
ctx = context.RequestContext.from_dict({
'tenant': 'test_tenant',
'username': 'test_username',
'password': 'password',
'auth_url': 'http://localhost:5000/v2.0'})
template = parser.Template(t)
params = parser.Parameters('test_stack', template, {'KeyName': 'test'})
stack = parser.Stack(ctx, 'test_stack', template, params)
return stack
def _stub_create(self, num):
self.m.StubOutWithMock(eventlet, 'sleep')
self.m.StubOutWithMock(instance.Instance, 'create')
self.m.StubOutWithMock(instance.Instance, 'check_active')
for x in range(num):
instance.Instance.create().AndReturn(None)
instance.Instance.check_active().AndReturn(False)
eventlet.sleep(mox.IsA(int)).AndReturn(None)
instance.Instance.check_active().MultipleTimes().AndReturn(True)
[docs] def create_instance_group(self, t, stack, resource_name):
resource = asc.InstanceGroup(resource_name,
t['Resources'][resource_name],
stack)
self.assertEqual(None, resource.validate())
self.assertEqual(None, resource.create())
self.assertEqual(asc.InstanceGroup.CREATE_COMPLETE, resource.state)
return resource
[docs] def test_instance_group(self):
t = self.load_template()
stack = self.parse_stack(t)
# start with min then delete
self._stub_create(1)
self.m.StubOutWithMock(instance.Instance, 'FnGetAtt')
instance.Instance.FnGetAtt('PublicIp').AndReturn('1.2.3.4')
self.m.ReplayAll()
resource = self.create_instance_group(t, stack, 'JobServerGroup')
self.assertEqual('JobServerGroup', resource.FnGetRefId())
self.assertEqual('1.2.3.4', resource.FnGetAtt('InstanceList'))
self.assertEqual('JobServerGroup-0', resource.resource_id)
self.assertEqual(asc.InstanceGroup.UPDATE_REPLACE,
resource.handle_update({}))
resource.delete()
self.m.VerifyAll()
[docs] def test_missing_image(self):
t = self.load_template()
stack = self.parse_stack(t)
resource = asc.InstanceGroup('JobServerGroup',
t['Resources']['JobServerGroup'],
stack)
self.m.StubOutWithMock(instance.Instance, 'create')
instance.Instance.create().AndReturn('ImageNotFound: bla')
self.m.ReplayAll()
self.assertEqual(resource.create(), 'ImageNotFound: bla')
self.assertEqual(asc.InstanceGroup.CREATE_FAILED, resource.state)
self.m.VerifyAll()
[docs] def test_update_size(self):
t = self.load_template()
properties = t['Resources']['JobServerGroup']['Properties']
properties['Size'] = '2'
stack = self.parse_stack(t)
self._stub_create(2)
self.m.ReplayAll()
resource = self.create_instance_group(t, stack, 'JobServerGroup')
self.assertEqual('JobServerGroup-0,JobServerGroup-1',
resource.resource_id)
self.m.VerifyAll()
self.m.UnsetStubs()
# Increase min size to 5
self._stub_create(3)
self.m.StubOutWithMock(instance.Instance, 'FnGetAtt')
instance.Instance.FnGetAtt('PublicIp').AndReturn('10.0.0.2')
instance.Instance.FnGetAtt('PublicIp').AndReturn('10.0.0.3')
instance.Instance.FnGetAtt('PublicIp').AndReturn('10.0.0.4')
instance.Instance.FnGetAtt('PublicIp').AndReturn('10.0.0.5')
instance.Instance.FnGetAtt('PublicIp').AndReturn('10.0.0.6')
self.m.ReplayAll()
update_snippet = copy.deepcopy(resource.parsed_template())
update_snippet['Properties']['Size'] = '5'
self.assertEqual(asc.AutoScalingGroup.UPDATE_COMPLETE,
resource.handle_update(update_snippet))
assert_str = ','.join(['JobServerGroup-%s' % x for x in range(5)])
self.assertEqual(assert_str,
resource.resource_id)
self.assertEqual('10.0.0.2,10.0.0.3,10.0.0.4,10.0.0.5,10.0.0.6',
resource.FnGetAtt('InstanceList'))
resource.delete()
self.m.VerifyAll()