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# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# 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.
"""
Routines for configuring Heat
"""
import logging as sys_logging
import os
from eventlet.green import socket
from oslo.config import cfg
from heat.common import wsgi
from heat.openstack.common import log as logging
from heat.openstack.common import rpc
DEFAULT_PORT = 8000
paste_deploy_group = cfg.OptGroup('paste_deploy')
paste_deploy_opts = [
cfg.StrOpt('flavor'),
cfg.StrOpt('config_file')]
bind_opts = [
cfg.IntOpt('bind_port', default=8000),
cfg.StrOpt('bind_host', default='127.0.0.1')]
service_opts = [
cfg.IntOpt('report_interval',
default=10,
help='seconds between nodes reporting state to datastore'),
cfg.IntOpt('periodic_interval',
default=60,
help='seconds between running periodic tasks'),
cfg.StrOpt('ec2_listen',
default="0.0.0.0",
help='IP address for EC2 API to listen'),
cfg.IntOpt('ec2_listen_port',
default=8773,
help='port for ec2 api to listen'),
cfg.StrOpt('osapi_compute_listen',
default="0.0.0.0",
help='IP address for OpenStack API to listen'),
cfg.IntOpt('osapi_compute_listen_port',
default=8774,
help='list port for osapi compute'),
cfg.StrOpt('osapi_volume_listen',
default="0.0.0.0",
help='IP address for OpenStack Volume API to listen'),
cfg.IntOpt('osapi_volume_listen_port',
default=8776,
help='port for os volume api to listen'),
cfg.StrOpt('heat_metadata_server_url',
default="",
help='URL of the Heat metadata server'),
cfg.StrOpt('heat_waitcondition_server_url',
default="",
help='URL of the Heat waitcondition server'),
cfg.StrOpt('heat_watch_server_url',
default="",
help='URL of the Heat cloudwatch server'),
cfg.StrOpt('instance_connection_is_secure',
default="0",
help='Instance connection to cfn/cw API via https'),
cfg.StrOpt('instance_connection_https_validate_certificates',
default="1",
help='Instance connection to cfn/cw API validate certs if ssl'),
cfg.StrOpt('heat_stack_user_role',
default="heat_stack_user",
help='Keystone role for heat template-defined users')]
db_opts = [
cfg.StrOpt('sql_connection',
default='mysql://heat:heat@localhost/heat',
help='The SQLAlchemy connection string used to connect to the '
'database'),
cfg.IntOpt('sql_idle_timeout',
default=3600,
help='timeout before idle sql connections are reaped')]
engine_opts = [
cfg.StrOpt('instance_user',
default='ec2-user',
help='The default user for new instances'),
cfg.StrOpt('instance_driver',
default='heat.engine.nova',
help='Driver to use for controlling instances'),
cfg.ListOpt('plugin_dirs',
default=['/usr/lib64/heat', '/usr/lib/heat'],
help='List of directories to search for Plugins')]
rpc_opts = [
cfg.StrOpt('host',
default=socket.gethostname(),
help='Name of the engine node. '
'This can be an opaque identifier.'
'It is not necessarily a hostname, FQDN, or IP address.'),
cfg.StrOpt('engine_topic',
default='engine',
help='the topic engine nodes listen on')]
def register_api_opts():
cfg.CONF.register_opts(bind_opts)
cfg.CONF.register_opts(rpc_opts)
rpc.set_defaults(control_exchange='heat')
def register_db_opts():
cfg.CONF.register_opts(db_opts)
def register_engine_opts():
cfg.CONF.register_opts(engine_opts)
cfg.CONF.register_opts(service_opts)
cfg.CONF.register_opts(rpc_opts)
rpc.set_defaults(control_exchange='heat')
def _register_paste_deploy_opts():
"""
Idempotent registration of paste_deploy option group
"""
cfg.CONF.register_group(paste_deploy_group)
cfg.CONF.register_opts(paste_deploy_opts, group=paste_deploy_group)
def _get_deployment_flavor():
"""
Retrieve the paste_deploy.flavor config item, formatted appropriately
for appending to the application name.
"""
_register_paste_deploy_opts()
flavor = cfg.CONF.paste_deploy.flavor
return '' if not flavor else ('-' + flavor)
def _get_deployment_config_file():
"""
Retrieve the deployment_config_file config item, formatted as an
absolute pathname.
"""
_register_paste_deploy_opts()
config_file = cfg.CONF.paste_deploy.config_file
if not config_file:
if cfg.CONF.config_file:
# Assume paste config is in a paste.ini file corresponding
# to the last config file
path = os.path.splitext(cfg.CONF.config_file[-1])[0] + "-paste.ini"
else:
return None
else:
path = config_file
return os.path.abspath(path)
def load_paste_app(app_name=None):
"""
Builds and returns a WSGI app from a paste config file.
We assume the last config file specified in the supplied ConfigOpts
object is the paste config file.
:param app_name: name of the application to load
:raises RuntimeError when config file cannot be located or application
cannot be loaded from config file
"""
if app_name is None:
app_name = cfg.CONF.prog
# append the deployment flavor to the application name,
# in order to identify the appropriate paste pipeline
app_name += _get_deployment_flavor()
conf_file = _get_deployment_config_file()
if conf_file is None:
raise RuntimeError("Unable to locate config file")
try:
app = wsgi.paste_deploy_app(conf_file, app_name, cfg.CONF)
# Log the options used when starting if we're in debug mode...
if cfg.CONF.debug:
cfg.CONF.log_opt_values(logging.getLogger(app_name),
sys_logging.DEBUG)
return app
except (LookupError, ImportError), e:
raise RuntimeError("Unable to load %(app_name)s from "
"configuration file %(conf_file)s."
"\nGot: %(e)r" % locals())
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