# This file is part of cloud-init. See LICENSE file for license information.
"""Base snapshot."""
class Snapshot(object):
"""Base class for snapshots."""
platform_name = None
def __init__(self, platform, properties, config, features):
"""Set up snapshot.
@param platform: platform object
@param properties: image properties
@param config: image config
@param features: supported feature flags
"""
self.platform = platform
self.properties = properties
self.config = config
self.features = features
def __str__(self):
"""A brief description of the snapshot."""
return '-'.join((self.properties['os'], self.properties['release']))
def launch(self, user_data, meta_data=None, block=True, start=True,
use_desc=None):
"""Launch instance.
@param user_data: user-data for the instance
@param instance_id: instance-id for the instance
@param block: wait until instance is created
@param start: start instance and wait until fully started
@param use_desc: description of snapshot instance use
@return_value: an Instance
"""
raise NotImplementedError
def destroy(self):
"""Clean up snapshot data."""
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