185 lines
7.3 KiB
Python
185 lines
7.3 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import datetime
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import yaml
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from toscaparser.nodetemplate import NodeTemplate
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from toscaparser.policy import Policy
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from toscaparser.tests.base import TestCase
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import toscaparser.utils.yamlparser
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from translator.hot.syntax.hot_parameter import HotParameter
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from translator.hot.tosca.tosca_compute import ToscaCompute
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from translator.hot.tosca.tosca_policies_scaling import ToscaAutoscaling
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HOT_TEMPLATE_VERSION = '2013-05-23'
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class AutoscalingTest(TestCase):
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def _tosca_scaling_test(self, tpl_snippet, expectedprops,
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hot_template_parameters=None):
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nodetemplates = (toscaparser.utils.yamlparser.
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simple_parse(tpl_snippet)['node_templates'])
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policies = (toscaparser.utils.yamlparser.
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simple_parse(tpl_snippet)['policies'])
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name = list(nodetemplates.keys())[0]
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policy_name = list(policies[0].keys())[0]
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for policy in policies:
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tpl = policy[policy_name]
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targets = tpl["targets"]
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properties = tpl["properties"]
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try:
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nodetemplate = NodeTemplate(name, nodetemplates)
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toscacompute = ToscaCompute(nodetemplate)
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toscacompute.handle_properties()
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policy = Policy(policy_name, tpl, targets,
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properties, "node_templates")
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toscascaling = ToscaAutoscaling(
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policy, hot_template_parameters=hot_template_parameters)
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parameters = toscascaling.handle_properties([toscacompute])
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if hot_template_parameters:
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substack_template = toscascaling.extract_substack_templates(
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"output.yaml", HOT_TEMPLATE_VERSION)
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actual_nested_resource = yaml.load(
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substack_template['SP1_res.yaml'])
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self.assertEqual(expectedprops,
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actual_nested_resource)
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else:
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self.assertEqual(parameters[0].properties, expectedprops)
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except Exception:
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raise
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def test_compute_with_scaling(self):
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tpl_snippet = '''
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node_templates:
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my_server_1:
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type: tosca.nodes.Compute
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capabilities:
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host:
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properties:
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num_cpus: 2
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disk_size: 10 GB
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mem_size: 512 MB
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os:
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properties:
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# host Operating System image properties
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architecture: x86_64
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type: Linux
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distribution: RHEL
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version: 6.5
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policies:
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- asg:
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type: tosca.policies.Scaling
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description: Simple node autoscaling
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targets: [my_server_1]
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triggers:
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resize_compute:
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description: trigger
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condition:
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constraint: utilization greater_than 50%
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granularity: 60
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evaluations: 1
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aggregation_method: mean
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resource_type: instance
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comparison_operator: gt
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properties:
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min_instances: 2
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max_instances: 10
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default_instances: 3
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increment: 1
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cooldown: 60
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'''
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expectedprops = {'desired_capacity': 3,
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'max_size': 10,
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'min_size': 2,
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'cooldown': 60,
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'resource': {'type': 'asg_res.yaml'}}
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self._tosca_scaling_test(
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tpl_snippet,
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expectedprops)
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def test_scaling_nested_template_with_params(self):
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tpl_snippet = '''
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node_templates:
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VDU1:
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type: tosca.nodes.Compute
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properties:
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image: { get_input: image_name }
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flavor: { get_input: flavor }
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mgmt_driver: noop
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availability_zone: nova
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metadata: {metering.server_group: SG1}
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policies:
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- SP1:
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type: tosca.policies.Scaling
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targets: [VDU1]
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properties:
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increment: 1
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cooldown: 120
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min_instances: 1
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max_instances: 3
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default_instances: 1
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'''
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expected_nested_resource = {'heat_template_version':
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datetime.date(2013, 5, 23),
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'description':
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'Scaling template',
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'parameters':
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{'flavor':
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{'default': 'm1.tiny',
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'type': 'string',
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'description':
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'Flavor Information'
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},
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'image_name':
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{'default':
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'cirros-0.3.5-x86_64-disk',
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'type': 'string',
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'description': 'Image Name'
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}
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},
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'resources':
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{'VDU1':
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{'type':
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'OS::Nova::Server',
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'properties':
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{'flavor': None,
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'user_data_format':
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'SOFTWARE_CONFIG'
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}
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}
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}
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}
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flavor = HotParameter('flavor', 'string',
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label=None,
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description='Flavor Information',
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default='m1.tiny',
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hidden=None,
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constraints=[])
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image = HotParameter('image_name', 'string',
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label=None,
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description='Image Name',
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default='cirros-0.3.5-x86_64-disk',
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hidden=None,
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constraints=[])
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hot_template_parameters = [flavor, image]
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self._tosca_scaling_test(tpl_snippet,
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expected_nested_resource,
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hot_template_parameters)
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