services/nodemanager/tests/test_computenode_driver_ec2.py

   1 #!/usr/bin/env python
   2
   3 from __future__ import absolute_import, print_function
   4
   5 import ssl
   6 import time
   7 import unittest
   8
   9 import libcloud.common.types as cloud_types
  10 import mock
  11
  12 import arvnodeman.computenode.driver.ec2 as ec2
  13 from . import testutil
  14
  15 class EC2ComputeNodeDriverTestCase(testutil.DriverTestMixin, unittest.TestCase):
  16     TEST_CLASS = ec2.ComputeNodeDriver
  17
  18     def test_driver_instantiation(self):
  19         kwargs = {'key': 'testkey'}
  20         driver = self.new_driver(auth_kwargs=kwargs)
  21         self.assertTrue(self.driver_mock.called)
  22         self.assertEqual(kwargs, self.driver_mock.call_args[1])
  23
  24     def test_list_kwargs_become_filters(self):
  25         # We're also testing tag name translation.
  26         driver = self.new_driver(list_kwargs={'tag_test': 'true'})
  27         driver.list_nodes()
  28         list_method = self.driver_mock().list_nodes
  29         self.assertTrue(list_method.called)
  30         self.assertEqual({'tag:test': 'true'},
  31                           list_method.call_args[1].get('ex_filters'))
  32
  33     def test_create_image_loaded_at_initialization(self):
  34         list_method = self.driver_mock().list_images
  35         list_method.return_value = [testutil.cloud_object_mock(c)
  36                                     for c in 'abc']
  37         driver = self.new_driver(create_kwargs={'image_id': 'b'})
  38         self.assertEqual(1, list_method.call_count)
  39
  40     def test_create_includes_ping_secret(self):
  41         arv_node = testutil.arvados_node_mock(info={'ping_secret': 'ssshh'})
  42         driver = self.new_driver()
  43         driver.create_node(testutil.MockSize(1), arv_node)
  44         create_method = self.driver_mock().create_node
  45         self.assertTrue(create_method.called)
  46         self.assertIn('ping_secret=ssshh',
  47                       create_method.call_args[1].get('ex_userdata',
  48                                                      'arg missing'))
  49
  50     def test_hostname_from_arvados_node(self):
  51         arv_node = testutil.arvados_node_mock(8)
  52         driver = self.new_driver()
  53         self.assertEqual('compute8.zzzzz.arvadosapi.com',
  54                          driver.arvados_create_kwargs(arv_node)['name'])
  55
  56     def test_default_hostname_from_new_arvados_node(self):
  57         arv_node = testutil.arvados_node_mock(hostname=None)
  58         driver = self.new_driver()
  59         self.assertEqual('dynamic.compute.zzzzz.arvadosapi.com',
  60                          driver.arvados_create_kwargs(arv_node)['name'])
  61
  62     def check_node_tagged(self, cloud_node, expected_tags):
  63         tag_mock = self.driver_mock().ex_create_tags
  64         self.assertTrue(tag_mock.called)
  65         self.assertIs(cloud_node, tag_mock.call_args[0][0])
  66         self.assertEqual(expected_tags, tag_mock.call_args[0][1])
  67
  68     def test_post_create_node_tags_from_list_kwargs(self):
  69         expect_tags = {'key1': 'test value 1', 'key2': 'test value 2'}
  70         list_kwargs = {('tag_' + key): value
  71                        for key, value in expect_tags.iteritems()}
  72         list_kwargs['instance-state-name'] = 'running'
  73         cloud_node = testutil.cloud_node_mock()
  74         driver = self.new_driver(list_kwargs=list_kwargs)
  75         driver.post_create_node(cloud_node)
  76         self.check_node_tagged(cloud_node, expect_tags)
  77
  78     def test_sync_node(self):
  79         arv_node = testutil.arvados_node_mock(1)
  80         cloud_node = testutil.cloud_node_mock(2)
  81         driver = self.new_driver()
  82         driver.sync_node(cloud_node, arv_node)
  83         self.check_node_tagged(cloud_node,
  84                                {'Name': 'compute1.zzzzz.arvadosapi.com'})
  85
  86     def test_node_create_time(self):
  87         refsecs = int(time.time())
  88         reftuple = time.gmtime(refsecs)
  89         node = testutil.cloud_node_mock()
  90         node.extra = {'launch_time': time.strftime('%Y-%m-%dT%H:%M:%S.000Z',
  91                                                    reftuple)}
  92         self.assertEqual(refsecs, ec2.ComputeNodeDriver.node_start_time(node))
  93
  94     def test_cloud_exceptions(self):
  95         for error in [Exception("test exception"),
  96                       IOError("test exception"),
  97                       ssl.SSLError("test exception"),
  98                       cloud_types.LibcloudError("test exception")]:
  99             self.assertTrue(ec2.ComputeNodeDriver.is_cloud_exception(error),
 100                             "{} not flagged as cloud exception".format(error))
 101
 102     def test_noncloud_exceptions(self):
 103         self.assertFalse(
 104             ec2.ComputeNodeDriver.is_cloud_exception(ValueError("test error")),
 105             "ValueError flagged as cloud exception")