tobiko/tobiko/fault/config.py

75 lines
2.7 KiB
Python

# Copyright 2019 Red Hat
#
# 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 __future__ import absolute_import
import os
import jinja2
from oslo_log import log
import tobiko
from tobiko.fault import constants as fault_const
from tobiko.openstack import nova
LOG = log.getLogger(__name__)
class FaultConfig(object):
"""Responsible for managing faults configuration."""
DEFAULT_CONF_PATH = os.path.expanduser('~/.config/openstack')
DEFAULT_CONF_NAME = "os-faults.yml"
DEFAULT_CONF_FILE = os.path.join(DEFAULT_CONF_PATH, DEFAULT_CONF_NAME)
def __init__(self, conf_file):
self.templates_dir = os.path.join(os.path.dirname(__file__),
'templates')
if conf_file:
self.conf_file = conf_file
else:
conf_file = self.DEFAULT_CONF_FILE
if os.path.isfile(conf_file):
self.conf_file = conf_file
else:
self.conf_file = self.generate_config_file()
def generate_config_file(self):
"""Generates os-faults configuration file."""
LOG.info("Generating os-fault configuration file.")
tobiko.makedirs(self.DEFAULT_CONF_PATH)
rendered_conf = self.get_rendered_configuration()
with open(self.DEFAULT_CONF_FILE, "w") as f:
f.write(rendered_conf)
return self.DEFAULT_CONF_FILE
def get_rendered_configuration(self):
"""Returns rendered os-fault configuration file."""
j2_env = jinja2.Environment(
loader=jinja2.FileSystemLoader(self.templates_dir),
trim_blocks=True)
template = j2_env.get_template('os-faults.yml.j2')
nodes = self.get_nodes()
return template.render(nodes=nodes,
services=fault_const.SERVICES,
containers=fault_const.CONTAINERS)
def get_nodes(self):
"""Returns a list of dictionaries with nodes name and address."""
client = nova.get_nova_client()
return [{'name': server.name,
'address': server.addresses['ctlplane'][0]['addr']}
for server in client.servers.list()]