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# Copyright 2012 Red Hat, Inc.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# See the License for the specific language governing permissions and
# limitations under the License.
from zope.interface import Interface
class OSDelegate(Interface):
""" Delegate interface for OS installation and customization. OS plugins
use provide the builder with a delegate. Not all methods defined in this
interface need to be implemented by the delegate, just the ones that
the plugin cares about. Delegation provides a way for the plugin to
customize the behavior of the builder. """
def create_base_image(self, builder, template, parameters):
Create a JEOS image and install any packages specified in the template.
@param builder The Builder object coordinating image creation.
@param template A Template object.
@param parameters Dictionary of target specific parameters.
@return A BaseImage object.
def create_target_image(self, builder, target, base_image, parameters):
Performs cloud specific customization on the base image.
@param builder The builder object.
@param base_image The BaseImage to customize.
@param target The cloud type to customize for.
@param parameters Dictionary of target specific parameters.
@return A TargetImage object.
def add_cloud_plugin_content(self, content):
This is a method that cloud plugins can call to deposit content/commands to
be run during the OS-specific first stage of the Target Image creation.
There is no support for repos at the moment as these introduce external
dependencies that we may not be able to resolve.
@param content dict containing commands and file.