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###############################################################################
# Copyright (c) 2017 Koren Lev (Cisco Systems), Yaron Yogev (Cisco Systems) #
# and others #
# #
# All rights reserved. This program and the accompanying materials #
# are made available under the terms of the Apache License, Version 2.0 #
# which accompanies this distribution, and is available at #
# http://www.apache.org/licenses/LICENSE-2.0 #
###############################################################################
class CliDistTranslator:
DOCKER_CALL = 'docker exec --user root'
TRANSLATIONS = {
# special handling of cli commands in Mercury environments
'Mercury': {
'ip netns list':
'{docker_call} neutron_l3_agent_{version} {cmd};;;'
'{docker_call} neutron_dhcp_agent_{version} {cmd}',
'ip netns exec qdhcp': \
'{docker_call} neutron_dhcp_agent_{version} {cmd}',
'ip netns exec qrouter': \
'{docker_call} neutron_l3_agent_{version} {cmd}',
'virsh': '{docker_call} novalibvirt_{version} {cmd}',
'ip link': '{docker_call} ovs_vswitch_{version} {cmd}',
'ip -d link': '{docker_call} ovs_vswitch_{version} {cmd}',
'bridge fdb show': '{docker_call} ovs_vswitch_{version} {cmd}',
'brctl': '{docker_call} ovs_vswitch_{version} {cmd}',
'ovs-vsctl': '{docker_call} ovs_vswitch_{version} {cmd}',
'ovs-dpctl': '{docker_call} ovs_vswitch_{version} {cmd}'
}
}
def __init__(self, dist: str, dist_version: str=''):
self.translation = self.TRANSLATIONS.get(dist, {})
self.dist_version = dist_version
def translate(self, command_to_translate: str) -> str:
for command in self.translation.keys():
if command in command_to_translate:
return self.command_translation(command_to_translate,
command)
return command_to_translate
def command_translation(self, command_to_translate: str,
translation_key: str) -> str:
cmd_translation = self.translation.get(translation_key)
if not cmd_translation:
return command_to_translate
translation_dict = {
'docker_call': self.DOCKER_CALL,
'version': self.dist_version,
'cmd': translation_key
}
cmd_translation = cmd_translation.format(**translation_dict)
cmd_translation = command_to_translate.replace(translation_key,
cmd_translation)
return cmd_translation
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