kolla-kubernetes/kolla_kubernetes/service.py

124 lines
4.3 KiB
Python

# 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 datetime
import os.path
import subprocess
import tempfile
import time
from oslo_config import cfg
from oslo_log import log as logging
import yaml
from kolla_kubernetes.common import file_utils
from kolla_kubernetes.common import jinja_utils
from kolla_kubernetes.common import utils
from kolla_kubernetes import service_definition
LOG = logging.getLogger()
CONF = cfg.CONF
CONF.import_group('kolla', 'kolla_kubernetes.config')
CONF.import_group('kolla_kubernetes', 'kolla_kubernetes.config')
def _create_working_directory():
ts = time.time()
ts = datetime.datetime.fromtimestamp(ts).strftime('%Y-%m-%d_%H-%M-%S_')
temp_dir = tempfile.mkdtemp(prefix='kolla-' + ts)
working_dir = os.path.join(temp_dir, 'kubernetes')
os.makedirs(working_dir)
return working_dir
def _load_variables_from_file(project_name):
jvars = utils.JvarsDict()
f = file_utils.find_config_file('globals.yml')
if os.path.exists(f):
with open(f, 'r') as gf:
jvars.set_global_vars(yaml.load(gf))
else:
LOG.warning('Unable to load %s', f)
f = file_utils.find_config_file('passwords.yml')
if os.path.exists(f):
with open(f, 'r') as gf:
jvars.update(yaml.load(gf))
else:
LOG.warning('Unable to load %s', f)
# Apply the basic variables that aren't defined in any config file.
jvars.update({
'deployment_id': CONF.kolla.deployment_id,
'node_config_directory': '',
'timestamp': str(time.time())
})
dir = file_utils.get_shared_directory()
all_yml = os.path.join(dir, 'ansible/group_vars/all.yml')
if dir and os.path.exists(all_yml):
all_yml_name = os.path.join(dir, all_yml)
jinja_utils.yaml_jinja_render(all_yml_name, jvars)
else:
LOG.warning('Unable to load %s', all_yml)
proj_yml_name = os.path.join(dir, 'ansible/roles',
project_name, 'defaults', 'main.yml')
if dir and os.path.exists(proj_yml_name):
jinja_utils.yaml_jinja_render(proj_yml_name, jvars)
else:
LOG.warning('Unable to load %s', proj_yml_name)
return jvars
def _build_runner(working_dir, service_name, variables=None):
for filename in service_definition.find_service_files(service_name):
proj_filename = filename.split('/')[-1].replace('.j2', '')
proj_name = filename.split('/')[-2]
LOG.debug(
'proj_filename : %s proj_name: %s' % (proj_filename, proj_name))
variables = _load_variables_from_file(proj_name)
content = yaml.load(
jinja_utils.jinja_render(filename, variables))
with open(os.path.join(working_dir, proj_filename), 'w') as f:
LOG.debug('_build_runner : service file : %s' %
os.path.join(working_dir, proj_filename))
f.write(yaml.dump(content, default_flow_style=False))
def run_service(service_name, variables=None):
working_dir = _create_working_directory()
_build_runner(working_dir, service_name, variables=variables)
_deploy_instance(working_dir, service_name)
def kill_service(service_name, variables=None):
working_dir = _create_working_directory()
_build_runner(working_dir, service_name, variables=variables)
_delete_instance(working_dir, service_name)
def _deploy_instance(directory, service_name):
server = "--server=" + CONF.kolla_kubernetes.host
cmd = [CONF.kolla_kubernetes.kubectl_path, server, "create", "-f",
directory]
LOG.info('Command : %r' % cmd)
subprocess.call(cmd)
def _delete_instance(directory, service_name):
server = "--server=" + CONF.kolla_kubernetes.host
cmd = [CONF.kolla_kubernetes.kubectl_path, server, "delete", "-f",
directory]
LOG.info('Command : %r' % cmd)
subprocess.call(cmd)