deb-heat/heat/tests/test_sahara_cluster.py
Alexander Ignatov f15f4abd69 Implement OS::Sahara::Cluster resource
* This patch implements resource for Hadoop cluster provisioned by
  Sahara based on Sahara's cluster template.
* Heat template for stack based on this resource should have minimal set
  of fields needed to provision cluster.
* To successfully provision cluster the following steps should be done:
  - Sahara enabled and working in your env
  - Sahara contains valid cluster template [1]
  - Sahara's image registry contains registered image with preinstalled
    Hadoop components [2]

[1] http://docs.openstack.org/developer/sahara/restapi/rest_api_v1.0.html#create-cluster-template
[2] http://docs.openstack.org/developer/sahara/devref/quickstart.html#upload-image-to-glance

Co-Authored-By: Pavlo Shchelokovskyy <pshchelokovskyy@mirantis.com>

Implements: blueprint sahara-as-heat-resource

Change-Id: If470511cbb88349f47a61a35b1a19ba7c68efd83
2014-09-02 18:08:02 +03:00

173 lines
7.1 KiB
Python

# 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.
import mock
from oslo.config import cfg
import six
from heat.common import exception
from heat.common import template_format
from heat.engine.clients.os import glance
from heat.engine.clients.os import neutron
from heat.engine.clients.os import sahara
from heat.engine.resources import sahara_cluster as sc
from heat.engine import scheduler
from heat.tests.common import HeatTestCase
from heat.tests import utils
cluster_stack_template = """
heat_template_version: 2013-05-23
description: Hadoop Cluster by Sahara
resources:
super-cluster:
type: OS::Sahara::Cluster
properties:
name: super-cluster
plugin_name: vanilla
hadoop_version: 2.3.0
cluster_template_id: some_cluster_template_id
image: some_image
key_name: admin
neutron_management_network: some_network
"""
class FakeCluster(object):
def __init__(self, status='Active'):
self.status = status
self.id = "some_id"
self.name = "super-cluster"
self.info = {"HDFS": {"NameNode": "hdfs://hostname:port",
"Web UI": "http://host_ip:port"}}
class SaharaClusterTest(HeatTestCase):
def setUp(self):
super(SaharaClusterTest, self).setUp()
self.patchobject(sc.constraints.CustomConstraint, '_is_valid'
).return_value = True
self.patchobject(glance.GlanceClientPlugin, 'get_image_id'
).return_value = 'some_image_id'
self.patchobject(neutron.NeutronClientPlugin, '_create')
self.patchobject(neutron.NeutronClientPlugin, 'find_neutron_resource'
).return_value = 'some_network_id'
self.sahara_mock = mock.MagicMock()
self.patchobject(sahara.SaharaClientPlugin, '_create'
).return_value = self.sahara_mock
self.cl_mgr = self.sahara_mock.clusters
self.fake_cl = FakeCluster()
self.t = template_format.parse(cluster_stack_template)
def _init_cluster(self, template):
stack = utils.parse_stack(template)
cluster = stack['super-cluster']
return cluster
def _create_cluster(self, template):
cluster = self._init_cluster(template)
self.cl_mgr.create.return_value = self.fake_cl
self.cl_mgr.get.return_value = self.fake_cl
scheduler.TaskRunner(cluster.create)()
self.assertEqual((cluster.CREATE, cluster.COMPLETE),
cluster.state)
self.assertEqual(self.fake_cl.id, cluster.resource_id)
return cluster
def test_cluster_create(self):
self._create_cluster(self.t)
expected_args = ('super-cluster', 'vanilla', '2.3.0')
expected_kwargs = {'cluster_template_id': 'some_cluster_template_id',
'user_keypair_id': 'admin',
'default_image_id': 'some_image_id',
'net_id': 'some_network_id'}
self.cl_mgr.create.assert_called_once_with(*expected_args,
**expected_kwargs)
self.cl_mgr.get.assert_called_once_with(self.fake_cl.id)
def test_cluster_delete(self):
cluster = self._create_cluster(self.t)
scheduler.TaskRunner(cluster.delete)()
self.assertEqual((cluster.DELETE, cluster.COMPLETE),
cluster.state)
self.cl_mgr.delete.assert_called_once_with(self.fake_cl.id)
def test_cluster_create_fails(self):
cfg.CONF.set_override('action_retry_limit', 0)
cluster = self._init_cluster(self.t)
self.cl_mgr.create.return_value = self.fake_cl
self.cl_mgr.get.return_value = FakeCluster(status='Error')
create_task = scheduler.TaskRunner(cluster.create)
ex = self.assertRaises(exception.ResourceFailure, create_task)
expected = 'ResourceInError: Went to status Error due to "Unknown"'
self.assertEqual(expected, six.text_type(ex))
def test_cluster_delete_fails(self):
cluster = self._create_cluster(self.t)
self.cl_mgr.delete.side_effect = sahara.sahara_base.APIException()
delete_task = scheduler.TaskRunner(cluster.delete)
ex = self.assertRaises(exception.ResourceFailure, delete_task)
expected = "APIException: None"
self.assertEqual(expected, six.text_type(ex))
self.cl_mgr.delete.assert_called_once_with(self.fake_cl.id)
def test_cluster_not_found_in_delete(self):
cluster = self._create_cluster(self.t)
self.cl_mgr.delete.side_effect = sahara.sahara_base.APIException(
error_code=404)
scheduler.TaskRunner(cluster.delete)()
self.cl_mgr.delete.assert_called_once_with(self.fake_cl.id)
def test_cluster_resolve_attribute(self):
cluster = self._create_cluster(self.t)
self.cl_mgr.get.reset_mock()
self.assertEqual(self.fake_cl.info,
cluster._resolve_attribute('info'))
self.assertEqual(self.fake_cl.status,
cluster._resolve_attribute('status'))
self.assertEqual(2, self.cl_mgr.get.call_count)
def test_cluster_resource_mapping(self):
cluster = self._init_cluster(self.t)
mapping = sc.resource_mapping()
self.assertEqual(1, len(mapping))
self.assertEqual(sc.SaharaCluster,
mapping['OS::Sahara::Cluster'])
self.assertIsInstance(cluster, sc.SaharaCluster)
def test_cluster_create_no_image_anywhere_fails(self):
self.t['resources']['super-cluster']['properties'].pop('image')
self.sahara_mock.cluster_templates.get.return_value = mock.Mock(
default_image_id=None)
cluster = self._init_cluster(self.t)
ex = self.assertRaises(exception.ResourceFailure,
scheduler.TaskRunner(cluster.create))
self.assertIsInstance(ex.exc, exception.StackValidationFailed)
self.assertIn("image must be provided: "
"Referenced cluster template some_cluster_template_id "
"has no default_image_id defined.",
six.text_type(ex.message))
def test_cluster_validate_no_network_on_neutron_fails(self):
self.t['resources']['super-cluster']['properties'].pop(
'neutron_management_network')
cluster = self._init_cluster(self.t)
self.patchobject(cluster, 'is_using_neutron', return_value=True)
ex = self.assertRaises(exception.StackValidationFailed,
cluster.validate)
self.assertEqual("neutron_management_network must be provided",
six.text_type(ex))