old_contents: # Copyright (c) 2015 Canonical Ltd.
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in
  # all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  # THE SOFTWARE.
  
  from .base import ProviderModel
  from collections import OrderedDict
  
  
  class LocalProviderModel(ProviderModel):
      name = "Local"
      description = "Deploy using containers."
      type = "local"
      config = OrderedDict([
          ('container', ['lxc', 'kvm']),
          ('apt-http-proxy', None),
          ('apt-https-proxy', None),
          ('http-proxy', None),
          ('https-proxy', None),
          ('enable-os-refresh-update', False),
          ('enable-os-upgrade', False)
      ])
  
new_contents: # Copyright (c) 2015 Canonical Ltd.
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in
  # all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  # THE SOFTWARE.
  
  from .base import ProviderModel
  from collections import OrderedDict
  
  
  class LocalProviderModel(ProviderModel):
      name = "Local"
      description = "Deploy using containers."
      type = "local"
      config = OrderedDict([
          ('container', ['lxc', 'kvm', 'lxd']),
          ('apt-http-proxy', None),
          ('apt-https-proxy', None),
          ('http-proxy', None),
          ('https-proxy', None),
          ('enable-os-refresh-update', False),
          ('enable-os-upgrade', False)
      ])
  
subject: add lxd option