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##############################################################################
# Copyright (c) 2017 Huawei Technologies Co.,Ltd.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
import logging
import os
import uuid
import threading
import requests
import datetime
from api import ApiResource
from api.database.v2.handlers import V2ImageHandler
from api.database.v2.handlers import V2EnvironmentHandler
from yardstick.common.utils import result_handler
from yardstick.common.utils import source_env
from yardstick.common import openstack_utils
from yardstick.common.openstack_utils import get_glance_client
from yardstick.common import constants as consts
LOG = logging.getLogger(__name__)
LOG.setLevel(logging.DEBUG)
IMAGE_MAP = {
'yardstick-image': {
'path': os.path.join(consts.IMAGE_DIR, 'yardstick-image.img'),
'url': 'http://artifacts.opnfv.org/yardstick/images/yardstick-image.img'
},
'Ubuntu-16.04': {
'path': os.path.join(consts.IMAGE_DIR, 'xenial-server-cloudimg-amd64-disk1.img'),
'url': 'cloud-images.ubuntu.com/xenial/current/xenial-server-cloudimg-amd64-disk1.img'
},
'cirros-0.3.5': {
'path': os.path.join(consts.IMAGE_DIR, 'cirros-0.3.5-x86_64-disk.img'),
'url': 'http://download.cirros-cloud.net/0.3.5/cirros-0.3.5-x86_64-disk.img'
}
}
class V2Images(ApiResource):
def get(self):
try:
source_env(consts.OPENRC)
except OSError:
return result_handler(consts.API_ERROR, 'source openrc error')
image_list = openstack_utils.list_images()
if image_list is False:
return result_handler(consts.API_ERROR, 'get images error')
images = {i.name: format_image_info(i) for i in image_list}
return result_handler(consts.API_SUCCESS, {'status': 1, 'images': images})
def post(self):
return self._dispatch_post()
def load_image(self, args):
try:
image_name = args['name']
except KeyError:
return result_handler(consts.API_ERROR, 'image name must provided')
if image_name not in IMAGE_MAP:
return result_handler(consts.API_ERROR, 'wrong image name')
thread = threading.Thread(target=self._do_load_image, args=(image_name,))
thread.start()
return result_handler(consts.API_SUCCESS, {'image': image_name})
def upload_image(self, args):
try:
image_file = args['file']
except KeyError:
return result_handler(consts.API_ERROR, 'file must be provided')
try:
environment_id = args['environment_id']
except KeyError:
return result_handler(consts.API_ERROR, 'environment_id must be provided')
try:
uuid.UUID(environment_id)
except ValueError:
return result_handler(consts.API_ERROR, 'invalid environment id')
environment_handler = V2EnvironmentHandler()
try:
environment = environment_handler.get_by_uuid(environment_id)
except ValueError:
return result_handler(consts.API_ERROR, 'no such environment')
file_path = os.path.join(consts.IMAGE_DIR, image_file.filename)
LOG.info('saving file')
image_file.save(file_path)
LOG.info('loading image')
self._load_image(image_file.filename, file_path)
LOG.info('creating image in DB')
image_handler = V2ImageHandler()
image_id = str(uuid.uuid4())
image_init_data = {
'uuid': image_id,
'name': image_file.filename,
'environment_id': environment_id
}
image_handler.insert(image_init_data)
LOG.info('update image in environment')
if environment.image_id:
image_list = environment.image_id.split(',')
image_list.append(image_id)
new_image_id = ','.join(image_list)
else:
new_image_id = image_id
environment_handler.update_attr(environment_id, {'image_id': new_image_id})
return result_handler(consts.API_SUCCESS, {'uuid': image_id})
def upload_image_by_url(self, args):
try:
url = args['url']
except KeyError:
return result_handler(consts.API_ERROR, 'url must be provided')
try:
environment_id = args['environment_id']
except KeyError:
return result_handler(consts.API_ERROR, 'environment_id must be provided')
try:
uuid.UUID(environment_id)
except ValueError:
return result_handler(consts.API_ERROR, 'invalid environment id')
environment_handler = V2EnvironmentHandler()
try:
environment = environment_handler.get_by_uuid(environment_id)
except ValueError:
return result_handler(consts.API_ERROR, 'no such environment')
thread = threading.Thread(target=self._do_upload_image_by_url, args=(url,))
thread.start()
file_name = url.split('/')[-1]
LOG.info('creating image in DB')
image_handler = V2ImageHandler()
image_id = str(uuid.uuid4())
image_init_data = {
'uuid': image_id,
'name': file_name,
'environment_id': environment_id
}
image_handler.insert(image_init_data)
LOG.info('update image in environment')
if environment.image_id:
image_list = environment.image_id.split(',')
image_list.append(image_id)
new_image_id = ','.join(image_list)
else:
new_image_id = image_id
environment_handler.update_attr(environment_id, {'image_id': new_image_id})
return result_handler(consts.API_SUCCESS, {'uuid': image_id})
def delete_image(self, args):
try:
image_name = args['name']
except KeyError:
return result_handler(consts.API_ERROR, 'image name must provided')
if image_name not in IMAGE_MAP:
return result_handler(consts.API_ERROR, 'wrong image name')
glance_client = get_glance_client()
try:
image = next((i for i in glance_client.images.list() if i.name == image_name))
except StopIteration:
return result_handler(consts.API_ERROR, 'can not find image')
glance_client.images.delete(image.id)
return result_handler(consts.API_SUCCESS, {})
def _do_upload_image_by_url(self, url):
file_name = url.split('/')[-1]
path = os.path.join(consts.IMAGE_DIR, file_name)
LOG.info('download image')
self._download_image(url, path)
LOG.info('loading image')
self._load_image(file_name, path)
def _do_load_image(self, image_name):
if not os.path.exists(IMAGE_MAP[image_name]['path']):
self._download_image(IMAGE_MAP[image_name]['url'],
IMAGE_MAP[image_name]['path'])
self._load_image(image_name, IMAGE_MAP[image_name]['path'])
def _load_image(self, image_name, image_path):
LOG.info('source openrc')
source_env(consts.OPENRC)
LOG.info('load image')
glance_client = get_glance_client()
image = glance_client.images.create(name=image_name,
visibility='public',
disk_format='qcow2',
container_format='bare')
with open(image_path, 'rb') as f:
glance_client.images.upload(image.id, f)
LOG.info('Done')
def _download_image(self, url, path):
start = datetime.datetime.now().replace(microsecond=0)
LOG.info('download image from: %s', url)
self._download_file(url, path)
end = datetime.datetime.now().replace(microsecond=0)
LOG.info('download image success, total: %s s', end - start)
def _download_handler(self, start, end, url, filename):
headers = {'Range': 'bytes=%d-%d' % (start, end)}
r = requests.get(url, headers=headers, stream=True)
with open(filename, "r+b") as fp:
fp.seek(start)
fp.tell()
fp.write(r.content)
def _download_file(self, url, path, num_thread=5):
r = requests.head(url)
try:
file_size = int(r.headers['content-length'])
except (TypeError, ValueError):
return
with open(path, 'wb') as f:
f.truncate(file_size)
thread_list = []
part = file_size // num_thread
for i in range(num_thread):
start = part * i
end = start + part if i != num_thread - 1 else file_size
kwargs = {'start': start, 'end': end, 'url': url, 'filename': path}
t = threading.Thread(target=self._download_handler, kwargs=kwargs)
t.setDaemon(True)
t.start()
thread_list.append(t)
for t in thread_list:
t.join()
class V2Image(ApiResource):
def get(self, image_id):
try:
uuid.UUID(image_id)
except ValueError:
return result_handler(consts.API_ERROR, 'invalid image id')
image_handler = V2ImageHandler()
try:
image = image_handler.get_by_uuid(image_id)
except ValueError:
return result_handler(consts.API_ERROR, 'no such image id')
images = openstack_utils.list_images()
try:
image = next((i for i in images if i.name == image.name))
except StopIteration:
pass
return_image = format_image_info(image)
return_image['id'] = image_id
return result_handler(consts.API_SUCCESS, {'image': return_image})
def delete(self, image_id):
try:
uuid.UUID(image_id)
except ValueError:
return result_handler(consts.API_ERROR, 'invalid image id')
image_handler = V2ImageHandler()
try:
image = image_handler.get_by_uuid(image_id)
except ValueError:
return result_handler(consts.API_ERROR, 'no such image id')
LOG.info('delete image in openstack')
glance_client = get_glance_client()
try:
image_o = next((i for i in glance_client.images.list() if i.name == image.name))
except StopIteration:
return result_handler(consts.API_ERROR, 'can not find image')
glance_client.images.delete(image_o.id)
LOG.info('delete image in environment')
environment_id = image.environment_id
environment_handler = V2EnvironmentHandler()
environment = environment_handler.get_by_uuid(environment_id)
image_list = environment.image_id.split(',')
image_list.remove(image_id)
environment_handler.update_attr(environment_id, {'image_id': ','.join(image_list)})
LOG.info('delete image in DB')
image_handler.delete_by_uuid(image_id)
return result_handler(consts.API_SUCCESS, {'image': image_id})
def format_image_info(image):
image_dict = {}
if image is None:
return image_dict
image_dict['name'] = image.name
image_dict['size'] = float(image.size) / 1024 / 1024
image_dict['status'] = image.status.upper()
image_dict['time'] = image.updated_at
return image_dict
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