Move the setup of target bus and target dev out of the libvirt driver and into the imagebackend module to reduce code duplication Change-Id: I6796c125af769236f93341361ee07c8319817f7f Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
		
			
				
	
	
		
			53 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			53 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 Grid Dynamics
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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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from nova.virt.libvirt import config
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from nova.virt.libvirt import imagebackend
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class Backend(object):
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    def __init__(self, use_cow):
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        pass
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    def image(self, instance, name, image_type=''):
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        class FakeImage(imagebackend.Image):
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            def __init__(self, instance, name):
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                self.path = os.path.join(instance, name)
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            def create_image(self, prepare_template, base,
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                              size, *args, **kwargs):
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                pass
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            def cache(self, fn, fname, size=None, *args, **kwargs):
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                pass
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            def libvirt_info(self, disk_bus, disk_dev,
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                             device_type, cache_mode):
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                info = config.LibvirtConfigGuestDisk()
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                info.source_type = 'file'
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                info.source_device = device_type
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                info.target_bus = disk_bus
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                info.target_dev = disk_dev
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                info.driver_cache = cache_mode
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                info.driver_format = 'raw'
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                info.source_path = self.path
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                return info
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        return FakeImage(instance, name)
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