tempest/api/data_processing/test_cluster_templates.py

# Copyright (c) 2014 Mirantis Inc.
#
#    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
#    License for the specific language governing permissions and limitations
#    under the License.

from tempest.api.data_processing import base as dp_base
from tempest.common.utils import data_utils
from tempest import test


class ClusterTemplateTest(dp_base.BaseDataProcessingTest):
    """Link to the API documentation is http://docs.openstack.org/developer/
    sahara/restapi/rest_api_v1.0.html#cluster-templates
    """
    @classmethod
    def resource_setup(cls):
        super(ClusterTemplateTest, cls).resource_setup()
        # create node group template
        node_group_template = {
            'name': data_utils.rand_name('sahara-ng-template'),
            'description': 'Test node group template',
            'plugin_name': 'vanilla',
            'hadoop_version': '1.2.1',
            'node_processes': ['datanode'],
            'flavor_id': cls.flavor_ref,
            'node_configs': {
                'HDFS': {
                    'Data Node Heap Size': 1024
                }
            }
        }
        resp_body = cls.create_node_group_template(**node_group_template)
        node_group_template_id = resp_body['id']

        cls.full_cluster_template = {
            'description': 'Test cluster template',
            'plugin_name': 'vanilla',
            'hadoop_version': '1.2.1',
            'cluster_configs': {
                'HDFS': {
                    'dfs.replication': 2
                },
                'MapReduce': {
                    'mapred.map.tasks.speculative.execution': False,
                    'mapred.child.java.opts': '-Xmx500m'
                },
                'general': {
                    'Enable Swift': False
                }
            },
            'node_groups': [
                {
                    'name': 'master-node',
                    'flavor_id': cls.flavor_ref,
                    'node_processes': ['namenode'],
                    'count': 1
                },
                {
                    'name': 'worker-node',
                    'node_group_template_id': node_group_template_id,
                    'count': 3
                }
            ]
        }
        # create cls.cluster_template variable to use for comparison to cluster
        # template response body. The 'node_groups' field in the response body
        # has some extra info that post body does not have. The 'node_groups'
        # field in the response body is something like this
        #
        #   'node_groups': [
        #       {
        #           'count': 3,
        #           'name': 'worker-node',
        #           'volume_mount_prefix': '/volumes/disk',
        #           'created_at': '2014-05-21 14:31:37',
        #           'updated_at': None,
        #           'floating_ip_pool': None,
        #           ...
        #       },
        #       ...
        #   ]
        cls.cluster_template = cls.full_cluster_template.copy()
        del cls.cluster_template['node_groups']

    def _create_cluster_template(self, template_name=None):
        """Creates Cluster Template with optional name specified.

        It creates template, ensures template name and response body.
        Returns id and name of created template.
        """
        if not template_name:
            # generate random name if it's not specified
            template_name = data_utils.rand_name('sahara-cluster-template')

        # create cluster template
        resp_body = self.create_cluster_template(template_name,
                                                 **self.full_cluster_template)

        # ensure that template created successfully
        self.assertEqual(template_name, resp_body['name'])
        self.assertDictContainsSubset(self.cluster_template, resp_body)

        return resp_body['id'], template_name

    @test.attr(type='smoke')
    def test_cluster_template_create(self):
        self._create_cluster_template()

    @test.attr(type='smoke')
    def test_cluster_template_list(self):
        template_info = self._create_cluster_template()

        # check for cluster template in list
        _, templates = self.client.list_cluster_templates()
        templates_info = [(template['id'], template['name'])
                          for template in templates]
        self.assertIn(template_info, templates_info)

    @test.attr(type='smoke')
    def test_cluster_template_get(self):
        template_id, template_name = self._create_cluster_template()

        # check cluster template fetch by id
        _, template = self.client.get_cluster_template(template_id)
        self.assertEqual(template_name, template['name'])
        self.assertDictContainsSubset(self.cluster_template, template)

    @test.attr(type='smoke')
    def test_cluster_template_delete(self):
        template_id, _ = self._create_cluster_template()

        # delete the cluster template by id
        self.client.delete_cluster_template(template_id)
        # TODO(ylobankov): check that cluster template is really deleted