yardstick/tests/unit/orchestrator/test_kubernetes.py

   1 ##############################################################################
   2 # Copyright (c) 2017 Intel Corporation
   3 #
   4 # All rights reserved. This program and the accompanying materials
   5 # are made available under the terms of the Apache License, Version 2.0
   6 # which accompanies this distribution, and is available at
   7 # http://www.apache.org/licenses/LICENSE-2.0
   8 ##############################################################################
   9
  10 import copy
  11
  12 import mock
  13
  14 from yardstick.common import exceptions
  15 from yardstick.common import kubernetes_utils
  16 from yardstick.orchestrator import kubernetes
  17 from yardstick.tests.unit import base
  18
  19
  20 class GetTemplateTestCase(base.BaseUnitTestCase):
  21
  22     def test_get_template(self):
  23         output_t = {
  24             "apiVersion": "v1",
  25             "kind": "ReplicationController",
  26             "metadata": {
  27                 "name": "host-k8s-86096c30"
  28             },
  29             "spec": {
  30                 "replicas": 1,
  31                 "template": {
  32                     "metadata": {
  33                         "labels": {
  34                             "app": "host-k8s-86096c30"
  35                         }
  36                     },
  37                     "spec": {
  38                         "containers": [
  39                             {
  40                                 "args": [
  41                                     "-c",
  42                                     "chmod 700 ~/.ssh; chmod 600 ~/.ssh/*; \
  43 service ssh restart;while true ; do sleep 10000; done"
  44                                 ],
  45                                 "command": [
  46                                     "/bin/bash"
  47                                 ],
  48                                 "image": "openretriever/yardstick",
  49                                 "name": "host-k8s-86096c30-container",
  50                                 "volumeMounts": [
  51                                     {
  52                                         "mountPath": "/tmp/.ssh/",
  53                                         "name": "k8s-86096c30-key",
  54                                         "readOnly": False
  55                                     }
  56                                 ]
  57                             }
  58                         ],
  59                         "volumes": [
  60                             {
  61                                 "configMap": {
  62                                     "name": "k8s-86096c30-key"
  63                                 },
  64                                 "name": "k8s-86096c30-key"
  65                             }
  66                         ],
  67                         "nodeSelector": {
  68                             "kubernetes.io/hostname": "node-01"
  69                         }
  70                     }
  71                 }
  72             }
  73         }
  74         input_s = {
  75             'command': '/bin/bash',
  76             'args': ['-c', 'chmod 700 ~/.ssh; chmod 600 ~/.ssh/*; \
  77 service ssh restart;while true ; do sleep 10000; done'],
  78             'ssh_key': 'k8s-86096c30-key',
  79             'nodeSelector': {'kubernetes.io/hostname': 'node-01'},
  80             'volumes': []
  81         }
  82         name = 'host-k8s-86096c30'
  83         output_r = kubernetes.KubernetesObject(name, **input_s).get_template()
  84         self.assertEqual(output_r, output_t)
  85
  86
  87 class GetRcPodsTestCase(base.BaseUnitTestCase):
  88
  89     @mock.patch('yardstick.orchestrator.kubernetes.k8s_utils.get_pod_list')
  90     def test_get_rc_pods(self, mock_get_pod_list):
  91         servers = {
  92             'host': {
  93                 'image': 'openretriever/yardstick',
  94                 'command': '/bin/bash',
  95                 'args': ['-c', 'chmod 700 ~/.ssh; chmod 600 ~/.ssh/*; \
  96 service ssh restart;while true ; do sleep 10000; done']
  97             },
  98             'target': {
  99                 'image': 'openretriever/yardstick',
 100                 'command': '/bin/bash',
 101                 'args': ['-c', 'chmod 700 ~/.ssh; chmod 600 ~/.ssh/*; \
 102 service ssh restart;while true ; do sleep 10000; done']
 103             }
 104         }
 105         k8s_template = kubernetes.KubernetesTemplate('k8s-86096c30', servers)
 106         mock_get_pod_list.return_value.items = []
 107         pods = k8s_template.get_rc_pods()
 108         self.assertEqual(pods, [])
 109
 110
 111 class KubernetesObjectTestCase(base.BaseUnitTestCase):
 112
 113     def test__init_one_container(self):
 114         pod_name = 'pod_name'
 115         _kwargs = {'args': ['arg1', 'arg2'],
 116                    'image': 'fake_image',
 117                    'command': 'fake_command'}
 118         k8s_obj = kubernetes.KubernetesObject(pod_name, **_kwargs)
 119         self.assertEqual(1, len(k8s_obj._containers))
 120         container = k8s_obj._containers[0]
 121         self.assertEqual(['arg1', 'arg2'], container._args)
 122         self.assertEqual('fake_image', container._image)
 123         self.assertEqual(['fake_command'], container._command)
 124         self.assertEqual([], container._volume_mounts)
 125
 126     def test__init_multipe_containers(self):
 127         pod_name = 'pod_name'
 128         containers = []
 129         for i in range(5):
 130             containers.append({'args': ['arg1', 'arg2'],
 131                                'image': 'fake_image_%s' % i,
 132                                'command': 'fake_command_%s' % i})
 133         _kwargs = {'containers': containers}
 134         k8s_obj = kubernetes.KubernetesObject(pod_name, **_kwargs)
 135         self.assertEqual(5, len(k8s_obj._containers))
 136         for i in range(5):
 137             container = k8s_obj._containers[i]
 138             self.assertEqual(['arg1', 'arg2'], container._args)
 139             self.assertEqual('fake_image_%s' % i, container._image)
 140             self.assertEqual(['fake_command_%s' % i], container._command)
 141             self.assertEqual([], container._volume_mounts)
 142
 143     def test__add_volumes(self):
 144         volume1 = {'name': 'fake_sshkey',
 145                    'configMap': {'name': 'fake_sshkey'}}
 146         volume2 = {'name': 'volume2',
 147                    'configMap': 'data'}
 148         k8s_obj = kubernetes.KubernetesObject('name', ssh_key='fake_sshkey',
 149                                               volumes=[volume2])
 150         k8s_obj._add_volumes()
 151         volumes = k8s_obj.template['spec']['template']['spec']['volumes']
 152         self.assertEqual(sorted([volume1, volume2], key=lambda k: k['name']),
 153                          sorted(volumes, key=lambda k: k['name']))
 154
 155     def test__add_volumes_no_volumes(self):
 156         volume1 = {'name': 'fake_sshkey',
 157                    'configMap': {'name': 'fake_sshkey'}}
 158         k8s_obj = kubernetes.KubernetesObject('name', ssh_key='fake_sshkey')
 159         k8s_obj._add_volumes()
 160         volumes = k8s_obj.template['spec']['template']['spec']['volumes']
 161         self.assertEqual([volume1], volumes)
 162
 163     def test__create_ssh_key_volume(self):
 164         expected = {'name': 'fake_sshkey',
 165                     'configMap': {'name': 'fake_sshkey'}}
 166         k8s_obj = kubernetes.KubernetesObject('name', ssh_key='fake_sshkey')
 167         self.assertEqual(expected, k8s_obj._create_ssh_key_volume())
 168
 169     def test__create_volume_item(self):
 170         for vol_type in kubernetes_utils.get_volume_types():
 171             volume = {'name': 'vol_name',
 172                       vol_type: 'data'}
 173             self.assertEqual(
 174                 volume,
 175                 kubernetes.KubernetesObject._create_volume_item(volume))
 176
 177     def test__create_volume_item_invalid_type(self):
 178         volume = {'name': 'vol_name',
 179                   'invalid_type': 'data'}
 180         with self.assertRaises(exceptions.KubernetesTemplateInvalidVolumeType):
 181             kubernetes.KubernetesObject._create_volume_item(volume)
 182
 183
 184 class ContainerObjectTestCase(base.BaseUnitTestCase):
 185
 186     def test__create_volume_mounts(self):
 187         volume_mount = {'name': 'fake_name',
 188                         'mountPath': 'fake_path'}
 189         ssh_vol = {'name': 'fake_ssh_key',
 190                    'mountPath': kubernetes.ContainerObject.SSH_MOUNT_PATH,
 191                    'readOnly': False}
 192         expected = copy.deepcopy(volume_mount)
 193         expected['readOnly'] = False
 194         expected = [expected, ssh_vol]
 195         container_obj = kubernetes.ContainerObject(
 196             'cname', 'fake_ssh_key', volumeMounts=[volume_mount])
 197         output = container_obj._create_volume_mounts()
 198         self.assertEqual(expected, output)
 199
 200     def test__create_volume_mounts_no_volume_mounts(self):
 201         ssh_vol = {'name': 'fake_ssh_key2',
 202                    'mountPath': kubernetes.ContainerObject.SSH_MOUNT_PATH,
 203                    'readOnly': False}
 204         container_obj = kubernetes.ContainerObject('name', 'fake_ssh_key2')
 205         output = container_obj._create_volume_mounts()
 206         self.assertEqual([ssh_vol], output)
 207
 208     def test__create_volume_mounts_item(self):
 209         volume_mount = {'name': 'fake_name',
 210                         'mountPath': 'fake_path'}
 211         expected = copy.deepcopy(volume_mount)
 212         expected['readOnly'] = False
 213         output = kubernetes.ContainerObject._create_volume_mounts_item(
 214             volume_mount)
 215         self.assertEqual(expected, output)
 216
 217     def test_get_container_item(self):
 218         volume_mount = {'name': 'fake_name',
 219                         'mountPath': 'fake_path'}
 220         args = ['arg1', 'arg2']
 221         container_obj = kubernetes.ContainerObject(
 222             'cname', ssh_key='fake_sshkey', volumeMount=[volume_mount],
 223             args=args)
 224         expected = {'args': args,
 225                     'command': [kubernetes.ContainerObject.COMMAND_DEFAULT],
 226                     'image': kubernetes.ContainerObject.IMAGE_DEFAULT,
 227                     'name': 'cname-container',
 228                     'volumeMounts': container_obj._create_volume_mounts()}
 229         self.assertEqual(expected, container_obj.get_container_item())