doctor_tests/image.py

   1 ##############################################################################
   2 # Copyright (c) 2017 ZTE Corporation and others.
   3 #
   4 # All rights reserved. This program and the accompanying materials
   5 # are made available under the terms of the Apache License, Version 2.0
   6 # which accompanies this distribution, and is available at
   7 # http://www.apache.org/licenses/LICENSE-2.0
   8 ##############################################################################
   9 import os
  10 import urllib.request
  11
  12 from oslo_config import cfg
  13
  14 from doctor_tests.identity_auth import get_session
  15 from doctor_tests.os_clients import glance_client
  16
  17 OPTS = [
  18     cfg.StrOpt('image_name',
  19                default=os.environ.get('IMAGE_NAME', 'cirros'),
  20                help='the name of test image',
  21                required=True),
  22     cfg.StrOpt('image_format',
  23                default='qcow2',
  24                help='the format of test image',
  25                required=True),
  26     cfg.StrOpt('image_filename',
  27                default='cirros.img',
  28                help='the name of image file',
  29                required=True),
  30     cfg.StrOpt('image_download_url',
  31                default='https://launchpad.net/cirros/trunk/0.3.0/+download/cirros-0.3.0-x86_64-disk.img',
  32                help='the url where to get the image',
  33                required=True),
  34 ]
  35
  36
  37 class Image(object):
  38
  39     def __init__(self, conf, log):
  40         self.conf = conf
  41         self.log = log
  42         self.glance = \
  43             glance_client(conf.glance_version, get_session())
  44         self.use_existing_image = False
  45         self.image = None
  46
  47     def create(self):
  48         self.log.info('image create start......')
  49
  50         images = {image.name: image for image in self.glance.images.list()}
  51         if self.conf.image_name not in images:
  52             if not os.path.exists(self.conf.image_filename):
  53                 resp = urllib.request.urlopen(self.conf.image_download_url)
  54                 with open(self.conf.image_filename, "wb") as file:
  55                     file.write(resp.read())
  56             self.image = self.glance.images.create(name=self.conf.image_name,
  57                                                    disk_format=self.conf.image_format,
  58                                                    container_format="bare",
  59                                                    visibility="public")
  60             self.glance.images.upload(self.image['id'],
  61                                       open(self.conf.image_filename, 'rb'))
  62         else:
  63             self.use_existing_image = True
  64             self.image = images[self.conf.image_name]
  65
  66         self.log.info('image create end......')
  67
  68     def delete(self):
  69         self.log.info('image delete start.......')
  70
  71         if not self.use_existing_image and self.image:
  72             self.glance.images.delete(self.image['id'])
  73
  74         self.log.info('image delete end.......')