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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 logging
from os_faults.ansible import executor
from os_faults.api import cloud_management
from os_faults.api import error
LOG = logging.getLogger(__name__)
class UniversalCloudManagement(cloud_management.CloudManagement):
"""Universal cloud management driver
This driver is suitable for the most abstract (and thus universal) case.
The driver does not have any built-in services nor node discovery
capabilities. All services need to be listed explicitly in a config file.
Node list is specified using `node_list` node discovery driver.
**Example of multi-node configuration:**
Note that in this configuration a node discovery driver is required.
.. code-block:: yaml
cloud_management:
driver: universal
node_discover:
driver: node_list
args:
- ip: 192.168.5.149
auth:
username: developer
private_key_file: cloud_key
become_password: my_secret_password
- ip: 192.168.5.150
auth:
username: developer
private_key_file: cloud_key
become_password: my_secret_password
"""
NAME = 'universal'
DESCRIPTION = 'Universal cloud management driver'
CONFIG_SCHEMA = {
'type': 'object',
'$schema': 'http://json-schema.org/draft-04/schema#',
'properties': {},
'additionalProperties': False,
}
def __init__(self, cloud_management_params):
super(UniversalCloudManagement, self).__init__()
self.cloud_executor = executor.AnsibleRunner()
def verify(self):
"""Verify connection to the cloud."""
nodes = self.get_nodes()
if not nodes:
raise error.OSFError('Cloud has no nodes')
task = {'command': 'hostname'}
task_result = self.execute_on_cloud(nodes.hosts, task)
LOG.debug('Host names of cloud nodes: %s',
', '.join(r.payload['stdout'] for r in task_result))
LOG.info('Connected to cloud successfully!')
def execute_on_cloud(self, hosts, task, raise_on_error=True):
"""Execute task on specified hosts within the cloud.
:param hosts: List of host FQDNs
:param task: Ansible task
:param raise_on_error: throw exception in case of error
:return: Ansible execution result (list of records)
"""
if raise_on_error:
return self.cloud_executor.execute(hosts, task)
else:
return self.cloud_executor.execute(hosts, task, [])
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