sahara/sahara/utils/openstack/heat.py

119 lines
4.0 KiB
Python

# Copyright (c) 2013 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 heatclient import client as heat_client
from oslo_config import cfg
from sahara import context
from sahara import exceptions as ex
from sahara.i18n import _
from sahara.service import sessions
from sahara.utils.openstack import base
from sahara.utils.openstack import keystone
opts = [
cfg.BoolOpt('api_insecure',
default=False,
help='Allow to perform insecure SSL requests to heat.'),
cfg.StrOpt('ca_file',
help='Location of ca certificates file to use for heat '
'client requests.'),
cfg.StrOpt("endpoint_type",
default="internalURL",
help="Endpoint type for heat client requests")
]
heat_group = cfg.OptGroup(name='heat',
title='Heat client options')
CONF = cfg.CONF
CONF.register_group(heat_group)
CONF.register_opts(opts, group=heat_group)
def client():
ctx = context.ctx()
session = sessions.cache().get_heat_session()
heat_url = base.url_for(ctx.service_catalog, 'orchestration',
endpoint_type=CONF.heat.endpoint_type)
return heat_client.Client(
'1', endpoint=heat_url, session=session, auth=keystone.auth(),
region_name=CONF.os_region_name)
def get_stack(stack_name, raise_on_missing=True):
for stack in base.execute_with_retries(
client().stacks.list, show_hidden=True,
filters={'name': stack_name}):
return stack
if not raise_on_missing:
return None
raise ex.NotFoundException({'stack': stack_name},
_('Failed to find stack %(stack)s'))
def delete_stack(cluster):
stack_name = cluster.stack_name
base.execute_with_retries(client().stacks.delete, stack_name)
stack = get_stack(stack_name, raise_on_missing=False)
while stack is not None:
# Valid states: IN_PROGRESS, empty and COMPLETE
if stack.status in ['IN_PROGRESS', '', 'COMPLETE']:
context.sleep(5)
else:
raise ex.HeatStackException(
message=_(
"Cannot delete heat stack {name}, reason: "
"stack status: {status}, status reason: {reason}").format(
name=stack_name, status=stack.status,
reason=stack.stack_status_reason))
stack = get_stack(stack_name, raise_on_missing=False)
def lazy_delete_stack(cluster):
'''Attempt to delete stack once, but do not await successful deletion'''
stack_name = cluster.stack_name
base.execute_with_retries(client().stacks.delete, stack_name)
def get_stack_outputs(cluster):
stack = get_stack(cluster.stack_name)
stack.get()
return stack.outputs
def _verify_completion(stack, is_update=False, last_update_time=None):
# NOTE: expected empty status because status of stack
# maybe is not set in heat database
if stack.status in ['IN_PROGRESS', '']:
return False
if is_update and stack.status == 'COMPLETE':
if stack.updated_time == last_update_time:
return False
return True
def wait_stack_completion(cluster, is_update=False, last_updated_time=None):
stack_name = cluster.stack_name
stack = get_stack(stack_name)
while not _verify_completion(stack, is_update, last_updated_time):
context.sleep(1)
stack = get_stack(stack_name)
if stack.status != 'COMPLETE':
raise ex.HeatStackException(stack.stack_status_reason)