71 lines
3.0 KiB
Python
71 lines
3.0 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (c) 2011 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import os
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REDHAT = 'redhat'
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DEBIAN = 'debian'
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def get_os():
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if os.path.isfile("/etc/redhat-release"):
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return REDHAT
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else:
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return DEBIAN
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def service_discovery(service_candidates):
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"""
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This function discovering how to start, stop, enable, disable service
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in current environment. "service_candidates" is array with possible
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system service names. Works for upstart, systemd, sysvinit.
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"""
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result = {}
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for service in service_candidates:
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# check upstart
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if os.path.isfile("/etc/init/%s.conf" % service):
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# upstart returns error code when service already started/stopped
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result['cmd_start'] = "sudo start %s || true" % service
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result['cmd_stop'] = "sudo stop %s || true" % service
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result['cmd_enable'] = ("sudo sed -i '/^manual$/d' "
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"/etc/init/%s.conf" % service)
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result['cmd_disable'] = ("sudo sh -c 'echo manual >> "
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"/etc/init/%s.conf'" % service)
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break
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# check sysvinit
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if os.path.isfile("/etc/init.d/%s" % service):
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result['cmd_start'] = "sudo service %s start" % service
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result['cmd_stop'] = "sudo service %s stop" % service
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if os.path.isfile("/usr/sbin/update-rc.d"):
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result['cmd_enable'] = "sudo update-rc.d %s defaults; sudo " \
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"update-rc.d %s enable" % (service,
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service)
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result['cmd_disable'] = "sudo update-rc.d %s defaults; sudo " \
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"update-rc.d %s disable" % (service,
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service)
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elif os.path.isfile("/sbin/chkconfig"):
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result['cmd_enable'] = "sudo chkconfig %s on" % service
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result['cmd_disable'] = "sudo chkconfig %s off" % service
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break
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# check systemd
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if os.path.isfile("/lib/systemd/system/%s.service" % service):
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result['cmd_start'] = "sudo systemctl start %s" % service
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result['cmd_stop'] = "sudo systemctl stop %s" % service
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result['cmd_enable'] = "sudo systemctl enable %s" % service
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result['cmd_disable'] = "sudo systemctl disable %s" % service
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break
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return result
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