2ddabc2c18
* CloudManagement.execute_on_cloud is abstract now. * CloudManagement.get_service is not abstract now and should be the same for all cloud management drivers. * Moved basic methods of FuelNodeCollection to NodeCollection. * Moved FuelService to common/service.py and renamed to ServiceAsProcess. * Cleaned up devstack driver: - DevStackNode now uses the same methods as FuelNodeCollection. - ServiceAsProcess is used for devstack services. - Added execute_on_cloud method to allow using common services. * Added common Host class. Change-Id: I50334db300098c5aaf410a2b28cdc3c72ebd065e
112 lines
4.7 KiB
Python
112 lines
4.7 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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import signal
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from os_faults.ansible import executor
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from os_faults.api import error
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from os_faults.api import service
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from os_faults import utils
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class ServiceAsProcess(service.Service):
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def __init__(self, node_cls, cloud_management=None, power_management=None):
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self.node_cls = node_cls
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self.cloud_management = cloud_management
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self.power_management = power_management
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def _run_task(self, task, nodes):
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ips = nodes.get_ips()
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if not ips:
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raise error.ServiceError('Node collection is empty')
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results = self.cloud_management.execute_on_cloud(ips, task)
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err = False
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for result in results:
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if result.status != executor.STATUS_OK:
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logging.error(
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'Task {} failed on node {}'.format(task, result.host))
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err = True
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if err:
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raise error.ServiceError('Task failed on some nodes')
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return results
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def get_nodes(self):
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nodes = self.cloud_management.get_nodes()
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ips = nodes.get_ips()
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cmd = 'bash -c "ps ax | grep \'{}\'"'.format(self.GREP)
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results = self.cloud_management.execute_on_cloud(
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ips, {'command': cmd}, False)
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success_ips = [r.host for r in results
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if r.status == executor.STATUS_OK]
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hosts = [h for h in nodes.hosts if h.ip in success_ips]
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return self.node_cls(cloud_management=self.cloud_management,
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power_management=self.power_management,
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hosts=hosts)
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@utils.require_variables('RESTART_CMD', 'SERVICE_NAME')
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def restart(self, nodes=None):
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nodes = nodes if nodes is not None else self.get_nodes()
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logging.info("Restart '%s' service on nodes: %s", self.SERVICE_NAME,
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nodes.get_ips())
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self._run_task({'command': self.RESTART_CMD}, nodes)
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@utils.require_variables('GREP', 'SERVICE_NAME')
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def kill(self, nodes=None):
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nodes = nodes if nodes is not None else self.get_nodes()
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logging.info("Kill '%s' service on nodes: %s", self.SERVICE_NAME,
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nodes.get_ips())
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cmd = {'kill': {'grep': self.GREP, 'sig': signal.SIGKILL}}
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self._run_task(cmd, nodes)
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@utils.require_variables('GREP', 'SERVICE_NAME')
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def freeze(self, nodes=None, sec=None):
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nodes = nodes if nodes is not None else self.get_nodes()
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if sec:
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cmd = {'freeze': {'grep': self.GREP, 'sec': sec}}
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else:
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cmd = {'kill': {'grep': self.GREP, 'sig': signal.SIGSTOP}}
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logging.info("Freeze '%s' service %son nodes: %s", self.SERVICE_NAME,
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('for %s sec ' % sec) if sec else '', nodes.get_ips())
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self._run_task(cmd, nodes)
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@utils.require_variables('GREP', 'SERVICE_NAME')
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def unfreeze(self, nodes=None):
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nodes = nodes if nodes is not None else self.get_nodes()
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logging.info("Unfreeze '%s' service on nodes: %s", self.SERVICE_NAME,
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nodes.get_ips())
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cmd = {'kill': {'grep': self.GREP, 'sig': signal.SIGCONT}}
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self._run_task(cmd, nodes)
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@utils.require_variables('PORT', 'SERVICE_NAME')
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def plug(self, nodes=None):
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nodes = nodes if nodes is not None else self.get_nodes()
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logging.info("Open port %d for '%s' service on nodes: %s",
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self.PORT[1], self.SERVICE_NAME, nodes.get_ips())
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self._run_task({'iptables': {'protocol': self.PORT[0],
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'port': self.PORT[1],
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'action': 'unblock',
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'service': self.SERVICE_NAME}}, nodes)
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@utils.require_variables('PORT', 'SERVICE_NAME')
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def unplug(self, nodes=None):
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nodes = nodes if nodes is not None else self.get_nodes()
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logging.info("Close port %d for '%s' service on nodes: %s",
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self.PORT[1], self.SERVICE_NAME, nodes.get_ips())
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self._run_task({'iptables': {'protocol': self.PORT[0],
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'port': self.PORT[1],
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'action': 'block',
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'service': self.SERVICE_NAME}}, nodes)
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