OpenStack Orchestration (Heat)
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# 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 copy
import json
from heatclient import exc
import six
import yaml
from heat_integrationtests.functional import functional_base
class ResourceGroupTest(functional_base.FunctionalTestsBase):
template = '''
heat_template_version: 2013-05-23
resources:
random_group:
type: OS::Heat::ResourceGroup
properties:
count: 0
resource_def:
type: My::RandomString
properties:
length: 30
salt: initial
outputs:
random1:
value: {get_attr: [random_group, resource.0.value]}
random2:
value: {get_attr: [random_group, resource.1.value]}
all_values:
value: {get_attr: [random_group, value]}
'''
def test_resource_group_zero_novalidate(self):
# Nested resources should be validated only when size > 0
# This allows features to be disabled via size=0 without
# triggering validation of nested resource custom constraints
# e.g images etc in the nested schema.
nested_template_fail = '''
heat_template_version: 2013-05-23
parameters:
length:
type: string
default: 50
salt:
type: string
default: initial
resources:
random:
type: OS::Heat::RandomString
properties:
length: BAD
'''
files = {'provider.yaml': nested_template_fail}
env = {'resource_registry':
{'My::RandomString': 'provider.yaml'}}
stack_identifier = self.stack_create(
template=self.template,
files=files,
environment=env
)
self.assertEqual({u'random_group': u'OS::Heat::ResourceGroup'},
self.list_resources(stack_identifier))
# Check we created an empty nested stack
nested_identifier = self.group_nested_identifier(stack_identifier,
'random_group')
self.assertEqual({}, self.list_resources(nested_identifier))
# Prove validation works for non-zero create/update
template_two_nested = self.template.replace("count: 0", "count: 2")
expected_err = ("resources.random_group<nested_stack>.resources."
"0<provider.yaml>.resources.random: : "
"Value 'BAD' is not an integer")
ex = self.assertRaises(exc.HTTPBadRequest, self.update_stack,
stack_identifier, template_two_nested,
environment=env, files=files)
self.assertIn(expected_err, six.text_type(ex))
ex = self.assertRaises(exc.HTTPBadRequest, self.stack_create,
template=template_two_nested,
environment=env, files=files)
self.assertIn(expected_err, six.text_type(ex))
def _validate_resources(self, stack_identifier, expected_count):
resources = self.list_group_resources(stack_identifier,
'random_group')
self.assertEqual(expected_count, len(resources))
expected_resources = dict(
(str(idx), 'My::RandomString')
for idx in range(expected_count))
self.assertEqual(expected_resources, resources)
def test_create(self):
def validate_output(stack, output_key, length):
output_value = self._stack_output(stack, output_key)
self.assertEqual(length, len(output_value))
return output_value
# verify that the resources in resource group are identically
# configured, resource names and outputs are appropriate.
env = {'resource_registry':
{'My::RandomString': 'OS::Heat::RandomString'}}
create_template = self.template.replace("count: 0", "count: 2")
stack_identifier = self.stack_create(template=create_template,
environment=env)
self.assertEqual({u'random_group': u'OS::Heat::ResourceGroup'},
self.list_resources(stack_identifier))
# validate count, type and name of resources in a resource group.
self._validate_resources(stack_identifier, 2)
# validate outputs
stack = self.client.stacks.get(stack_identifier)
outputs = []
outputs.append(validate_output(stack, 'random1', 30))
outputs.append(validate_output(stack, 'random2', 30))
self.assertEqual(outputs, self._stack_output(stack, 'all_values'))
def test_update_increase_decrease_count(self):
# create stack with resource group count 2
env = {'resource_registry':
{'My::RandomString': 'OS::Heat::RandomString'}}
create_template = self.template.replace("count: 0", "count: 2")
stack_identifier = self.stack_create(template=create_template,
environment=env)
self.assertEqual({u'random_group': u'OS::Heat::ResourceGroup'},
self.list_resources(stack_identifier))
# verify that the resource group has 2 resources
self._validate_resources(stack_identifier, 2)
# increase the resource group count to 5
update_template = self.template.replace("count: 0", "count: 5")
self.update_stack(stack_identifier, update_template, environment=env)
# verify that the resource group has 5 resources
self._validate_resources(stack_identifier, 5)
# decrease the resource group count to 3
update_template = self.template.replace("count: 0", "count: 3")
self.update_stack(stack_identifier, update_template, environment=env)
# verify that the resource group has 3 resources
self._validate_resources(stack_identifier, 3)
def test_update_removal_policies(self):
rp_template = '''
heat_template_version: 2014-10-16
resources:
random_group:
type: OS::Heat::ResourceGroup
properties:
count: 5
removal_policies: []
resource_def:
type: OS::Heat::RandomString
'''
# create stack with resource group, initial count 5
stack_identifier = self.stack_create(template=rp_template)
self.assertEqual({u'random_group': u'OS::Heat::ResourceGroup'},
self.list_resources(stack_identifier))
group_resources = self.list_group_resources(stack_identifier,
'random_group')
expected_resources = {u'0': u'OS::Heat::RandomString',
u'1': u'OS::Heat::RandomString',
u'2': u'OS::Heat::RandomString',
u'3': u'OS::Heat::RandomString',
u'4': u'OS::Heat::RandomString'}
self.assertEqual(expected_resources, group_resources)
# Remove three, specifying the middle resources to be removed
update_template = rp_template.replace(
'removal_policies: []',
'removal_policies: [{resource_list: [\'1\', \'2\', \'3\']}]')
self.update_stack(stack_identifier, update_template)
group_resources = self.list_group_resources(stack_identifier,
'random_group')
expected_resources = {u'0': u'OS::Heat::RandomString',
u'4': u'OS::Heat::RandomString',
u'5': u'OS::Heat::RandomString',
u'6': u'OS::Heat::RandomString',
u'7': u'OS::Heat::RandomString'}
self.assertEqual(expected_resources, group_resources)
def test_props_update(self):
"""Test update of resource_def properties behaves as expected."""
env = {'resource_registry':
{'My::RandomString': 'OS::Heat::RandomString'}}
template_one = self.template.replace("count: 0", "count: 1")
stack_identifier = self.stack_create(template=template_one,
environment=env)
self.assertEqual({u'random_group': u'OS::Heat::ResourceGroup'},
self.list_resources(stack_identifier))
initial_nested_ident = self.group_nested_identifier(stack_identifier,
'random_group')
self.assertEqual({'0': 'My::RandomString'},
self.list_resources(initial_nested_ident))
# get the resource id
res = self.client.resources.get(initial_nested_ident, '0')
initial_res_id = res.physical_resource_id
# change the salt (this should replace the RandomString but
# not the nested stack or resource group.
template_salt = template_one.replace("salt: initial", "salt: more")
self.update_stack(stack_identifier, template_salt, environment=env)
updated_nested_ident = self.group_nested_identifier(stack_identifier,
'random_group')
self.assertEqual(initial_nested_ident, updated_nested_ident)
# compare the resource id, we expect a change.
res = self.client.resources.get(updated_nested_ident, '0')
updated_res_id = res.physical_resource_id
self.assertNotEqual(initial_res_id, updated_res_id)
def test_update_nochange(self):
"""Test update with no properties change."""
env = {'resource_registry':
{'My::RandomString': 'OS::Heat::RandomString'}}
template_one = self.template.replace("count: 0", "count: 2")
stack_identifier = self.stack_create(template=template_one,
environment=env)
self.assertEqual({u'random_group': u'OS::Heat::ResourceGroup'},
self.list_resources(stack_identifier))
initial_nested_ident = self.group_nested_identifier(stack_identifier,
'random_group')
self.assertEqual({'0': 'My::RandomString', '1': 'My::RandomString'},
self.list_resources(initial_nested_ident))
# get the output
stack0 = self.client.stacks.get(stack_identifier)
initial_rand = self._stack_output(stack0, 'random1')
template_copy = copy.deepcopy(template_one)
self.update_stack(stack_identifier, template_copy, environment=env)
updated_nested_ident = self.group_nested_identifier(stack_identifier,
'random_group')
self.assertEqual(initial_nested_ident, updated_nested_ident)
# compare the random number, we expect no change.
stack1 = self.client.stacks.get(stack_identifier)
updated_rand = self._stack_output(stack1, 'random1')
self.assertEqual(initial_rand, updated_rand)
def test_update_nochange_resource_needs_update(self):
"""Test update when the resource definition has changed.
Test the scenario when the ResourceGroup update happens without
any changed properties, this can happen if the definition of
a contained provider resource changes (files map changes), then
the group and underlying nested stack should end up updated.
"""
random_templ1 = '''
heat_template_version: 2013-05-23
parameters:
length:
type: string
default: not-used
salt:
type: string
default: not-used
resources:
random1:
type: OS::Heat::RandomString
properties:
salt: initial
outputs:
value:
value: {get_attr: [random1, value]}
'''
files1 = {'my_random.yaml': random_templ1}
random_templ2 = random_templ1.replace('salt: initial',
'salt: more')
files2 = {'my_random.yaml': random_templ2}
env = {'resource_registry':
{'My::RandomString': 'my_random.yaml'}}
template_one = self.template.replace("count: 0", "count: 2")
stack_identifier = self.stack_create(template=template_one,
environment=env,
files=files1)
self.assertEqual({u'random_group': u'OS::Heat::ResourceGroup'},
self.list_resources(stack_identifier))
self.assertEqual(files1, self.client.stacks.files(stack_identifier))
initial_nested_ident = self.group_nested_identifier(stack_identifier,
'random_group')
self.assertEqual({'0': 'My::RandomString', '1': 'My::RandomString'},
self.list_resources(initial_nested_ident))
# get the output
stack0 = self.client.stacks.get(stack_identifier)
initial_rand = self._stack_output(stack0, 'random1')
# change the environment so we use a different TemplateResource.
# note "files2".
self.update_stack(stack_identifier, template_one,
environment=env, files=files2)
updated_nested_ident = self.group_nested_identifier(stack_identifier,
'random_group')
self.assertEqual(initial_nested_ident, updated_nested_ident)
self.assertEqual(files2, self.client.stacks.files(stack_identifier))
# compare the output, we expect a change.
stack1 = self.client.stacks.get(stack_identifier)
updated_rand = self._stack_output(stack1, 'random1')
self.assertNotEqual(initial_rand, updated_rand)
def test_validation(self):
resource_group = '''
heat_template_version: 2016-10-14
parameters:
the_count:
type: number
resources:
the_group:
type: OS::Heat::ResourceGroup
properties:
count: {get_param: the_count}
resource_def:
type: OS::Heat::RandomString
'''
ret = self.client.stacks.validate(template=resource_group)
expected = {'Description': 'No description',
'Environment': {'event_sinks': [],
'parameter_defaults': {},
'parameters': {},
'resource_registry': {u'resources': {}}},
'Parameters': {
'the_count': {'Description': '',
'Label': 'the_count',
'NoEcho': 'false',
'Type': 'Number'}}}
self.assertEqual(expected, ret)
class ResourceGroupTestNullParams(functional_base.FunctionalTestsBase):
template = '''
heat_template_version: 2013-05-23
parameters:
param:
type: empty
resources:
random_group:
type: OS::Heat::ResourceGroup
properties:
count: 1
resource_def:
type: My::RandomString
properties:
param: {get_param: param}
outputs:
val:
value: {get_attr: [random_group, val]}
'''
nested_template_file = '''
heat_template_version: 2013-05-23
parameters:
param:
type: empty
outputs:
val:
value: {get_param: param}
'''
scenarios = [
('string_empty', dict(
param='',
p_type='string',
)),
('boolean_false', dict(
param=False,
p_type='boolean',
)),
('number_zero', dict(
param=0,
p_type='number',
)),
('comma_delimited_list', dict(
param=[],
p_type='comma_delimited_list',
)),
('json_empty', dict(
param={},
p_type='json',
)),
]
def test_create_pass_zero_parameter(self):
templ = self.template.replace('type: empty',
'type: %s' % self.p_type)
n_t_f = self.nested_template_file.replace('type: empty',
'type: %s' % self.p_type)
files = {'provider.yaml': n_t_f}
env = {'resource_registry':
{'My::RandomString': 'provider.yaml'}}
stack_identifier = self.stack_create(
template=templ,
files=files,
environment=env,
parameters={'param': self.param}
)
stack = self.client.stacks.get(stack_identifier)
self.assertEqual(self.param, self._stack_output(stack, 'val')[0])
class ResourceGroupAdoptTest(functional_base.FunctionalTestsBase):
"""Prove that we can do resource group adopt."""
main_template = '''
heat_template_version: "2013-05-23"
resources:
group1:
type: OS::Heat::ResourceGroup
properties:
count: 2
resource_def:
type: OS::Heat::RandomString
outputs:
test0:
value: {get_attr: [group1, resource.0.value]}
test1:
value: {get_attr: [group1, resource.1.value]}
'''
def _yaml_to_json(self, yaml_templ):
return yaml.safe_load(yaml_templ)
def test_adopt(self):
data = {
"resources": {
"group1": {
"status": "COMPLETE",
"name": "group1",
"resource_data": {},
"metadata": {},
"resource_id": "test-group1-id",
"action": "CREATE",
"type": "OS::Heat::ResourceGroup",
"resources": {
"0": {
"status": "COMPLETE",
"name": "0",
"resource_data": {"value": "goopie"},
"resource_id": "ID-0",
"action": "CREATE",
"type": "OS::Heat::RandomString",
"metadata": {}
},
"1": {
"status": "COMPLETE",
"name": "1",
"resource_data": {"value": "different"},
"resource_id": "ID-1",
"action": "CREATE",
"type": "OS::Heat::RandomString",
"metadata": {}
}
}
}
},
"environment": {"parameters": {}},
"template": yaml.safe_load(self.main_template)
}
stack_identifier = self.stack_adopt(
adopt_data=json.dumps(data))
self.assert_resource_is_a_stack(stack_identifier, 'group1')
stack = self.client.stacks.get(stack_identifier)
self.assertEqual('goopie', self._stack_output(stack, 'test0'))
self.assertEqual('different', self._stack_output(stack, 'test1'))
class ResourceGroupErrorResourceTest(functional_base.FunctionalTestsBase):
template = '''
heat_template_version: "2013-05-23"
resources:
group1:
type: OS::Heat::ResourceGroup
properties:
count: 2
resource_def:
type: fail.yaml
'''
nested_templ = '''
heat_template_version: "2013-05-23"
resources:
oops:
type: OS::Heat::TestResource
properties:
fail: true
wait_secs: 2
'''
def test_fail(self):
stack_identifier = self.stack_create(
template=self.template,
files={'fail.yaml': self.nested_templ},
expected_status='CREATE_FAILED',
enable_cleanup=False)
stack = self.client.stacks.get(stack_identifier)
self.assertEqual('CREATE_FAILED', stack.stack_status)
self.client.stacks.delete(stack_identifier)
self._wait_for_stack_status(
stack_identifier, 'DELETE_COMPLETE',
success_on_not_found=True)
class ResourceGroupUpdatePolicyTest(functional_base.FunctionalTestsBase):
template = '''
heat_template_version: '2015-04-30'
resources:
random_group:
type: OS::Heat::ResourceGroup
update_policy:
rolling_update:
min_in_service: 1
max_batch_size: 2
pause_time: 1
properties:
count: 10
resource_def:
type: OS::Heat::TestResource
properties:
value: initial
update_replace: False
'''
def update_resource_group(self, update_template,
updated, created, deleted):
stack_identifier = self.stack_create(template=self.template)
group_resources = self.list_group_resources(stack_identifier,
'random_group',
minimal=False)
init_names = [res.physical_resource_id for res in group_resources]
self.update_stack(stack_identifier, update_template)
group_resources = self.list_group_resources(stack_identifier,
'random_group',
minimal=False)
updt_names = [res.physical_resource_id for res in group_resources]
matched_names = set(updt_names) & set(init_names)
self.assertEqual(updated, len(matched_names))
self.assertEqual(created, len(set(updt_names) - set(init_names)))
self.assertEqual(deleted, len(set(init_names) - set(updt_names)))
def test_resource_group_update(self):
"""Test rolling update with no conflict.
Simple rolling update with no conflict in batch size
and minimum instances in service.
"""
updt_template = yaml.safe_load(copy.deepcopy(self.template))
grp = updt_template['resources']['random_group']
policy = grp['update_policy']['rolling_update']
policy['min_in_service'] = '1'
policy['max_batch_size'] = '3'
res_def = grp['properties']['resource_def']
res_def['properties']['value'] = 'updated'
self.update_resource_group(updt_template,
updated=10,
created=0,
deleted=0)
def test_resource_group_update_replace(self):
"""Test rolling update(replace)with no conflict.
Simple rolling update replace with no conflict in batch size
and minimum instances in service.
"""
updt_template = yaml.safe_load(copy.deepcopy(self.template))
grp = updt_template['resources']['random_group']
policy = grp['update_policy']['rolling_update']
policy['min_in_service'] = '1'
policy['max_batch_size'] = '3'
res_def = grp['properties']['resource_def']
res_def['properties']['value'] = 'updated'
res_def['properties']['update_replace'] = True
self.update_resource_group(updt_template,
updated=0,
created=10,
deleted=10)
def test_resource_group_update_replace_template_changed(self):
"""Test rolling update(replace)with child template path changed.
Simple rolling update replace with child template path changed.
"""
nested_templ = '''
heat_template_version: "2013-05-23"
resources:
oops:
type: OS::Heat::TestResource
'''
create_template = yaml.safe_load(copy.deepcopy(self.template))
grp = create_template['resources']['random_group']
grp['properties']['resource_def'] = {'type': '/opt/provider.yaml'}
files = {'/opt/provider.yaml': nested_templ}
policy = grp['update_policy']['rolling_update']
policy['min_in_service'] = '1'
policy['max_batch_size'] = '3'
stack_identifier = self.stack_create(template=create_template,
files=files)
update_template = create_template.copy()
grp = update_template['resources']['random_group']
grp['properties']['resource_def'] = {'type': '/opt1/provider.yaml'}
files = {'/opt1/provider.yaml': nested_templ}
self.update_stack(stack_identifier, update_template, files=files)
def test_resource_group_update_scaledown(self):
"""Test rolling update with scaledown.
Simple rolling update with reduced size.
"""
updt_template = yaml.safe_load(copy.deepcopy(self.template))
grp = updt_template['resources']['random_group']
policy = grp['update_policy']['rolling_update']
policy['min_in_service'] = '1'
policy['max_batch_size'] = '3'
grp['properties']['count'] = 6
res_def = grp['properties']['resource_def']
res_def['properties']['value'] = 'updated'
self.update_resource_group(updt_template,
updated=6,
created=0,
deleted=4)
def test_resource_group_update_scaleup(self):
"""Test rolling update with scaleup.
Simple rolling update with increased size.
"""
updt_template = yaml.safe_load(copy.deepcopy(self.template))
grp = updt_template['resources']['random_group']
policy = grp['update_policy']['rolling_update']
policy['min_in_service'] = '1'
policy['max_batch_size'] = '3'
grp['properties']['count'] = 12
res_def = grp['properties']['resource_def']
res_def['properties']['value'] = 'updated'
self.update_resource_group(updt_template,
updated=10,
created=2,
deleted=0)
def test_resource_group_update_adjusted(self):
"""Test rolling update with enough available resources
Update with capacity adjustment with enough resources.
"""
updt_template = yaml.safe_load(copy.deepcopy(self.template))
grp = updt_template['resources']['random_group']
policy = grp['update_policy']['rolling_update']
policy['min_in_service'] = '8'
policy['max_batch_size'] = '4'
grp['properties']['count'] = 6
res_def = grp['properties']['resource_def']
res_def['properties']['value'] = 'updated'
self.update_resource_group(updt_template,
updated=6,
created=0,
deleted=4)
def test_resource_group_update_with_adjusted_capacity(self):
"""Test rolling update with capacity adjustment.
Rolling update with capacity adjustment due to conflict in
batch size and minimum instances in service.
"""
updt_template = yaml.safe_load(copy.deepcopy(self.template))
grp = updt_template['resources']['random_group']
policy = grp['update_policy']['rolling_update']
policy['min_in_service'] = '8'
policy['max_batch_size'] = '4'
res_def = grp['properties']['resource_def']
res_def['properties']['value'] = 'updated'
self.update_resource_group(updt_template,
updated=10,
created=0,
deleted=0)
def test_resource_group_update_huge_batch_size(self):
"""Test rolling update with huge batch size.
Rolling Update with a huge batch size(more than
current size).
"""
updt_template = yaml.safe_load(copy.deepcopy(self.template))
grp = updt_template['resources']['random_group']
policy = grp['update_policy']['rolling_update']
policy['min_in_service'] = '0'
policy['max_batch_size'] = '20'
res_def = grp['properties']['resource_def']
res_def['properties']['value'] = 'updated'
self.update_resource_group(updt_template,
updated=10,
created=0,
deleted=0)
def test_resource_group_update_huge_min_in_service(self):
"""Test rolling update with huge minimum capacity.
Rolling Update with a huge number of minimum instances
in service.
"""
updt_template = yaml.safe_load(copy.deepcopy(self.template))
grp = updt_template['resources']['random_group']
policy = grp['update_policy']['rolling_update']
policy['min_in_service'] = '20'
policy['max_batch_size'] = '1'
res_def = grp['properties']['resource_def']
res_def['properties']['value'] = 'updated'
self.update_resource_group(updt_template,
updated=10,
created=0,
deleted=0)