services/nodemanager/tests/test_computenode_driver_gce.py

   1 #!/usr/bin/env python
   2
   3 from __future__ import absolute_import, print_function
   4
   5 import json
   6 import time
   7 import unittest
   8
   9 import mock
  10
  11 import arvnodeman.computenode.driver.gce as gce
  12 from . import testutil
  13
  14 class GCEComputeNodeDriverTestCase(testutil.DriverTestMixin, unittest.TestCase):
  15     TEST_CLASS = gce.ComputeNodeDriver
  16
  17     def test_driver_instantiation(self):
  18         kwargs = {'user_id': 'foo'}
  19         driver = self.new_driver(auth_kwargs=kwargs)
  20         self.assertTrue(self.driver_mock.called)
  21         self.assertEqual(kwargs, self.driver_mock.call_args[1])
  22
  23     def test_create_image_loaded_at_initialization_by_name(self):
  24         image_mocks = [testutil.cloud_object_mock(c) for c in 'abc']
  25         list_method = self.driver_mock().list_images
  26         list_method.return_value = image_mocks
  27         driver = self.new_driver(create_kwargs={'image': 'B'})
  28         self.assertEqual(1, list_method.call_count)
  29
  30     def test_create_includes_ping_secret(self):
  31         arv_node = testutil.arvados_node_mock(info={'ping_secret': 'ssshh'})
  32         driver = self.new_driver()
  33         driver.create_node(testutil.MockSize(1), arv_node)
  34         metadata = self.driver_mock().create_node.call_args[1]['ex_metadata']
  35         self.assertIn('ping_secret=ssshh', metadata.get('arv-ping-url'))
  36
  37     def test_create_sets_default_hostname(self):
  38         driver = self.new_driver()
  39         driver.create_node(testutil.MockSize(1),
  40                            testutil.arvados_node_mock(254, hostname=None))
  41         create_kwargs = self.driver_mock().create_node.call_args[1]
  42         self.assertEqual('compute-0000000000000fe-zzzzz',
  43                          create_kwargs.get('name'))
  44         self.assertEqual('dynamic.compute.zzzzz.arvadosapi.com',
  45                          create_kwargs.get('ex_metadata', {}).get('hostname'))
  46
  47     def test_create_tags_from_list_tags(self):
  48         driver = self.new_driver(list_kwargs={'tags': 'testA, testB'})
  49         driver.create_node(testutil.MockSize(1), testutil.arvados_node_mock())
  50         self.assertEqual(['testA', 'testB'],
  51                          self.driver_mock().create_node.call_args[1]['ex_tags'])
  52
  53     def test_list_nodes_requires_tags_match(self):
  54         # A node matches if our list tags are a subset of the node's tags.
  55         # Test behavior with no tags, no match, partial matches, different
  56         # order, and strict supersets.
  57         cloud_mocks = [
  58             testutil.cloud_node_mock(node_num, tags=tag_set)
  59             for node_num, tag_set in enumerate(
  60                 [[], ['bad'], ['good'], ['great'], ['great', 'ok'],
  61                  ['great', 'good'], ['good', 'fantastic', 'great']])]
  62         cloud_mocks.append(testutil.cloud_node_mock())
  63         self.driver_mock().list_nodes.return_value = cloud_mocks
  64         driver = self.new_driver(list_kwargs={'tags': 'good, great'})
  65         self.assertItemsEqual(['5', '6'], [n.id for n in driver.list_nodes()])
  66
  67     def build_gce_metadata(self, metadata_dict):
  68         # Convert a plain metadata dictionary to the GCE data structure.
  69         return {
  70             'kind': 'compute#metadata',
  71             'fingerprint': 'testprint',
  72             'items': [{'key': key, 'value': metadata_dict[key]}
  73                       for key in metadata_dict],
  74             }
  75
  76     def check_sync_node_updates_hostname_tag(self, plain_metadata):
  77         start_metadata = self.build_gce_metadata(plain_metadata)
  78         arv_node = testutil.arvados_node_mock(1)
  79         cloud_node = testutil.cloud_node_mock(
  80             2, metadata=start_metadata.copy(),
  81             zone=testutil.cloud_object_mock('testzone'))
  82         driver = self.new_driver()
  83         driver.sync_node(cloud_node, arv_node)
  84         args, kwargs = self.driver_mock().connection.async_request.call_args
  85         self.assertEqual('/zones/TESTZONE/instances/2/setMetadata', args[0])
  86         for key in ['kind', 'fingerprint']:
  87             self.assertEqual(start_metadata[key], kwargs['data'][key])
  88         plain_metadata['hostname'] = 'compute1.zzzzz.arvadosapi.com'
  89         self.assertEqual(
  90             plain_metadata,
  91             {item['key']: item['value'] for item in kwargs['data']['items']})
  92
  93     def test_sync_node_updates_hostname_tag(self):
  94         self.check_sync_node_updates_hostname_tag(
  95             {'testkey': 'testvalue', 'hostname': 'startvalue'})
  96
  97     def test_sync_node_adds_hostname_tag(self):
  98         self.check_sync_node_updates_hostname_tag({'testkey': 'testval'})
  99
 100     def test_sync_node_raises_exception_on_failure(self):
 101         arv_node = testutil.arvados_node_mock(8)
 102         cloud_node = testutil.cloud_node_mock(
 103             9, metadata={}, zone=testutil.cloud_object_mock('failzone'))
 104         mock_response = self.driver_mock().connection.async_request()
 105         mock_response.success.return_value = False
 106         mock_response.error = 'sync error test'
 107         driver = self.new_driver()
 108         with self.assertRaises(Exception) as err_check:
 109             driver.sync_node(cloud_node, arv_node)
 110         self.assertIs(err_check.exception.__class__, Exception)
 111         self.assertIn('sync error test', str(err_check.exception))
 112
 113     def test_node_create_time_zero_for_unknown_nodes(self):
 114         node = testutil.cloud_node_mock()
 115         self.assertEqual(0, gce.ComputeNodeDriver.node_start_time(node))
 116
 117     def test_node_create_time_for_known_node(self):
 118         node = testutil.cloud_node_mock(metadata=self.build_gce_metadata(
 119                 {'booted_at': '1970-01-01T00:01:05Z'}))
 120         self.assertEqual(65, gce.ComputeNodeDriver.node_start_time(node))
 121
 122     def test_node_create_time_recorded_when_node_boots(self):
 123         start_time = time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime())
 124         arv_node = testutil.arvados_node_mock()
 125         driver = self.new_driver()
 126         driver.create_node(testutil.MockSize(1), arv_node)
 127         metadata = self.driver_mock().create_node.call_args[1]['ex_metadata']
 128         self.assertLessEqual(start_time, metadata.get('booted_at'))
 129
 130     def test_deliver_ssh_key_in_metadata(self):
 131         test_ssh_key = 'ssh-rsa-foo'
 132         arv_node = testutil.arvados_node_mock(1)
 133         with mock.patch('__builtin__.open',
 134                         mock.mock_open(read_data=test_ssh_key)) as mock_file:
 135             driver = self.new_driver(create_kwargs={'ssh_key': 'ssh-key-file'})
 136         mock_file.assert_called_once_with('ssh-key-file')
 137         driver.create_node(testutil.MockSize(1), arv_node)
 138         metadata = self.driver_mock().create_node.call_args[1]['ex_metadata']
 139         self.assertEqual('root:ssh-rsa-foo', metadata.get('sshKeys'))
 140
 141     def test_create_driver_with_service_accounts(self):
 142         service_accounts = {'email': 'foo@bar', 'scopes': ['storage-full']}
 143         srv_acct_config = {'service_accounts': json.dumps(service_accounts)}
 144         arv_node = testutil.arvados_node_mock(1)
 145         driver = self.new_driver(create_kwargs=srv_acct_config)
 146         driver.create_node(testutil.MockSize(1), arv_node)
 147         self.assertEqual(
 148             service_accounts,
 149             self.driver_mock().create_node.call_args[1]['ex_service_accounts'])