| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you 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 |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| |
| import logging |
| import subprocess |
| |
| from tashi.dfs.diskimageinterface import DiskImageInterface |
| |
| class QemuImage(DiskImageInterface): |
| ''' This class implements the image creation for qemu/kvm ''' |
| |
| def __init__(self, config): |
| DiskImageInterface.__init__(self, config) |
| self.log = logging.getLogger(__name__) |
| self.prefix = self.config.get("Vfs", "prefix") |
| |
| |
| def cloneImage(self, srcImage, dstImage): |
| self.log.info("Cloning image %s -> %s" % (srcImage, dstImage)) |
| cmd = "/usr/bin/qemu-img create -b %s -f qcow2 %s" % (srcImage, dstImage) |
| p = subprocess.Popen(cmd.split(), executable=cmd.split()[0], stdout=subprocess.PIPE) |
| self.log.info("Finished cloning image %s" % (p.stdout.readlines())) |
| |
| def rebaseImage(self, srcImage, dstImage): |
| self.log.info("Rebasing image %s -> %s" % (srcImage, dstImage)) |
| cmd = "/usr/bin/qemu-img convert %s -O qcow2 %s" % (srcImage, dstImage) |
| p = subprocess.Popen(cmd.split(), executable=cmd.split()[0], stdout=subprocess.PIPE) |
| self.log.info("Finished rebasing image %s" % (p.stdout.readlines())) |
| |
| def getImageInfo(self, srcImage): |
| cmd = "/usr/bin/qemu-img info %s" % srcImage |
| subprocess.Popen(cmd.split(), executable=cmd.split()[0], stdout=subprocess.PIPE) |