136 lines
4.4 KiB
Python
136 lines
4.4 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 logging
|
|
|
|
from os_faults.drivers.services import process
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class PcsService(process.ServiceAsProcess):
|
|
"""Service as a resource in Pacemaker
|
|
|
|
Service that can be controlled by `pcs resource` CLI tool.
|
|
|
|
**Example configuration:**
|
|
|
|
.. code-block:: yaml
|
|
|
|
services:
|
|
app:
|
|
driver: pcs_service
|
|
args:
|
|
pcs_service: app
|
|
grep: my_app
|
|
port: ['tcp', 4242]
|
|
|
|
parameters:
|
|
|
|
- **pcs_service** - name of a service
|
|
- **grep** - regexp for grep to find process PID
|
|
- **port** - tuple with two values - protocol, port number (optional)
|
|
"""
|
|
|
|
NAME = 'pcs_service'
|
|
DESCRIPTION = 'Service in pacemaker'
|
|
CONFIG_SCHEMA = {
|
|
'type': 'object',
|
|
'properties': {
|
|
'pcs_service': {'type': 'string'},
|
|
'grep': {'type': 'string'},
|
|
'port': process.PORT_SCHEMA,
|
|
},
|
|
'required': ['grep', 'pcs_service'],
|
|
'additionalProperties': False,
|
|
}
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
super(PcsService, self).__init__(*args, **kwargs)
|
|
self.pcs_service = self.config['pcs_service']
|
|
|
|
self.restart_cmd = 'pcs resource restart {} $(hostname)'.format(
|
|
self.pcs_service)
|
|
self.terminate_cmd = 'pcs resource ban {} $(hostname)'.format(
|
|
self.pcs_service)
|
|
self.start_cmd = 'pcs resource clear {} $(hostname)'.format(
|
|
self.pcs_service)
|
|
|
|
|
|
class PcsOrLinuxService(process.ServiceAsProcess):
|
|
"""Service as a resource in Pacemaker or Linux service
|
|
|
|
Service that can be controlled by `pcs resource` CLI tool or
|
|
linux `service` tool. This is a hybrid driver that tries to find
|
|
service in Pacemaker and uses linux `service` if it is not found
|
|
there.
|
|
|
|
**Example configuration:**
|
|
|
|
.. code-block:: yaml
|
|
|
|
services:
|
|
app:
|
|
driver: pcs_or_linux_service
|
|
args:
|
|
pcs_service: p_app
|
|
linux_service: app
|
|
grep: my_app
|
|
port: ['tcp', 4242]
|
|
|
|
parameters:
|
|
|
|
- **pcs_service** - name of a service in Pacemaker
|
|
- **linux_service** - name of a service in init.d
|
|
- **grep** - regexp for grep to find process PID
|
|
- **port** - tuple with two values - protocol, port number (optional)
|
|
"""
|
|
|
|
NAME = 'pcs_or_linux_service'
|
|
DESCRIPTION = 'Service in pacemaker or init.d'
|
|
CONFIG_SCHEMA = {
|
|
'type': 'object',
|
|
'properties': {
|
|
'pcs_service': {'type': 'string'},
|
|
'linux_service': {'type': 'string'},
|
|
'grep': {'type': 'string'},
|
|
'port': process.PORT_SCHEMA,
|
|
},
|
|
'required': ['grep', 'pcs_service', 'linux_service'],
|
|
'additionalProperties': False,
|
|
}
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
super(PcsOrLinuxService, self).__init__(*args, **kwargs)
|
|
self.pcs_service = self.config.get('pcs_service')
|
|
self.linux_service = self.config.get('linux_service')
|
|
|
|
self.restart_cmd = (
|
|
'if pcs resource show {pcs_service}; '
|
|
'then pcs resource restart {pcs_service} $(hostname); '
|
|
'else service {linux_service} restart; fi').format(
|
|
linux_service=self.linux_service,
|
|
pcs_service=self.pcs_service)
|
|
self.terminate_cmd = (
|
|
'if pcs resource show {pcs_service}; '
|
|
'then pcs resource ban {pcs_service} $(hostname); '
|
|
'else service {linux_service} stop; fi').format(
|
|
linux_service=self.linux_service,
|
|
pcs_service=self.pcs_service)
|
|
self.start_cmd = (
|
|
'if pcs resource show {pcs_service}; '
|
|
'then pcs resource clear {pcs_service} $(hostname); '
|
|
'else service {linux_service} start; fi').format(
|
|
linux_service=self.linux_service,
|
|
pcs_service=self.pcs_service)
|