mirror of
https://github.com/GNS3/gns3-server
synced 2024-11-28 19:28:07 +00:00
260 lines
7.9 KiB
Python
260 lines
7.9 KiB
Python
# -*- coding: utf-8 -*-
|
|
#
|
|
# Copyright (C) 2014 GNS3 Technologies Inc.
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
""" Interacts with Rackspace API to create and manage cloud instances. """
|
|
|
|
from .base_cloud_ctrl import BaseCloudCtrl
|
|
import json
|
|
import requests
|
|
from libcloud.compute.drivers.rackspace import ENDPOINT_ARGS_MAP
|
|
from libcloud.compute.providers import get_driver
|
|
from libcloud.compute.types import Provider
|
|
from libcloud.storage.providers import get_driver as get_storage_driver
|
|
from libcloud.storage.types import Provider as StorageProvider
|
|
|
|
from .exceptions import ItemNotFound, ApiError
|
|
from ..version import __version__
|
|
|
|
from collections import OrderedDict
|
|
|
|
import logging
|
|
log = logging.getLogger(__name__)
|
|
|
|
RACKSPACE_REGIONS = [{ENDPOINT_ARGS_MAP[k]['region']: k} for k in
|
|
ENDPOINT_ARGS_MAP]
|
|
|
|
|
|
class RackspaceCtrl(BaseCloudCtrl):
|
|
|
|
""" Controller class for interacting with Rackspace API. """
|
|
|
|
def __init__(self, username, api_key, *args, **kwargs):
|
|
super(RackspaceCtrl, self).__init__(username, api_key)
|
|
|
|
# set this up so it can be swapped out with a mock for testing
|
|
self.post_fn = requests.post
|
|
self.driver_cls = get_driver(Provider.RACKSPACE)
|
|
self.storage_driver_cls = get_storage_driver(StorageProvider.CLOUDFILES)
|
|
|
|
self.driver = None
|
|
self.storage_driver = None
|
|
self.region = None
|
|
self.instances = {}
|
|
|
|
self.authenticated = False
|
|
self.identity_ep = \
|
|
"https://identity.api.rackspacecloud.com/v2.0/tokens"
|
|
|
|
self.regions = []
|
|
self.token = None
|
|
self.tenant_id = None
|
|
self.flavor_ep = "https://dfw.servers.api.rackspacecloud.com/v2/{username}/flavors"
|
|
self._flavors = OrderedDict([
|
|
('2', '512MB, 1 VCPU'),
|
|
('3', '1GB, 1 VCPU'),
|
|
('4', '2GB, 2 VCPUs'),
|
|
('5', '4GB, 2 VCPUs'),
|
|
('6', '8GB, 4 VCPUs'),
|
|
('7', '15GB, 6 VCPUs'),
|
|
('8', '30GB, 8 VCPUs'),
|
|
('performance1-1', '1GB Performance, 1 VCPU'),
|
|
('performance1-2', '2GB Performance, 2 VCPUs'),
|
|
('performance1-4', '4GB Performance, 4 VCPUs'),
|
|
('performance1-8', '8GB Performance, 8 VCPUs'),
|
|
('performance2-15', '15GB Performance, 4 VCPUs'),
|
|
('performance2-30', '30GB Performance, 8 VCPUs'),
|
|
('performance2-60', '60GB Performance, 16 VCPUs'),
|
|
('performance2-90', '90GB Performance, 24 VCPUs'),
|
|
('performance2-120', '120GB Performance, 32 VCPUs',)
|
|
])
|
|
|
|
def authenticate(self):
|
|
"""
|
|
Submit username and api key to API service.
|
|
|
|
If authentication is successful, set self.regions and self.token.
|
|
Return boolean.
|
|
|
|
"""
|
|
|
|
self.authenticated = False
|
|
|
|
if len(self.username) < 1:
|
|
return False
|
|
|
|
if len(self.api_key) < 1:
|
|
return False
|
|
|
|
data = json.dumps({
|
|
"auth": {
|
|
"RAX-KSKEY:apiKeyCredentials": {
|
|
"username": self.username,
|
|
"apiKey": self.api_key
|
|
}
|
|
}
|
|
})
|
|
|
|
headers = {
|
|
'Content-type': 'application/json',
|
|
'Accept': 'application/json'
|
|
}
|
|
|
|
response = self.post_fn(self.identity_ep, data=data, headers=headers)
|
|
|
|
if response.status_code == 200:
|
|
|
|
api_data = response.json()
|
|
self.token = self._parse_token(api_data)
|
|
|
|
if self.token:
|
|
self.authenticated = True
|
|
user_regions = self._parse_endpoints(api_data)
|
|
self.regions = self._make_region_list(user_regions)
|
|
self.tenant_id = self._parse_tenant_id(api_data)
|
|
|
|
else:
|
|
self.regions = []
|
|
self.token = None
|
|
|
|
response.connection.close()
|
|
|
|
return self.authenticated
|
|
|
|
def list_regions(self):
|
|
""" Return a list the regions available to the user. """
|
|
|
|
return self.regions
|
|
|
|
def list_flavors(self):
|
|
""" Return the dictionary containing flavors id and names """
|
|
|
|
return self._flavors
|
|
|
|
def _parse_endpoints(self, api_data):
|
|
"""
|
|
Parse the JSON-encoded data returned by the Identity Service API.
|
|
|
|
Return a list of regions available for Compute v2.
|
|
|
|
"""
|
|
|
|
region_codes = []
|
|
|
|
for ep_type in api_data['access']['serviceCatalog']:
|
|
if ep_type['name'] == "cloudServersOpenStack" \
|
|
and ep_type['type'] == "compute":
|
|
|
|
for ep in ep_type['endpoints']:
|
|
if ep['versionId'] == "2":
|
|
region_codes.append(ep['region'])
|
|
|
|
return region_codes
|
|
|
|
def _parse_token(self, api_data):
|
|
""" Parse the token from the JSON-encoded data returned by the API. """
|
|
|
|
try:
|
|
token = api_data['access']['token']['id']
|
|
except KeyError:
|
|
return None
|
|
|
|
return token
|
|
|
|
def _parse_tenant_id(self, api_data):
|
|
""" """
|
|
try:
|
|
roles = api_data['access']['user']['roles']
|
|
for role in roles:
|
|
if 'tenantId' in role and role['name'] == 'compute:default':
|
|
return role['tenantId']
|
|
return None
|
|
except KeyError:
|
|
return None
|
|
|
|
def _make_region_list(self, region_codes):
|
|
"""
|
|
Make a list of regions for use in the GUI.
|
|
|
|
Returns a list of key-value pairs in the form:
|
|
<API's Region Name>: <libcloud's Region Name>
|
|
eg,
|
|
[
|
|
{'DFW': 'dfw'}
|
|
{'ORD': 'ord'},
|
|
...
|
|
]
|
|
|
|
"""
|
|
|
|
region_list = []
|
|
|
|
for ep in ENDPOINT_ARGS_MAP:
|
|
if ENDPOINT_ARGS_MAP[ep]['region'] in region_codes:
|
|
region_list.append({ENDPOINT_ARGS_MAP[ep]['region']: ep})
|
|
|
|
return region_list
|
|
|
|
def set_region(self, region):
|
|
""" Set self.region and self.driver. Returns True or False. """
|
|
|
|
try:
|
|
self.driver = self.driver_cls(self.username, self.api_key,
|
|
region=region)
|
|
self.storage_driver = self.storage_driver_cls(self.username, self.api_key,
|
|
region=region)
|
|
|
|
except ValueError:
|
|
return False
|
|
|
|
self.region = region
|
|
return True
|
|
|
|
def get_image(self, image_id):
|
|
return self.driver.get_image(image_id)
|
|
|
|
|
|
def get_provider(cloud_settings):
|
|
"""
|
|
Utility function to retrieve a cloud provider instance already authenticated and with the
|
|
region set
|
|
|
|
:param cloud_settings: cloud settings dictionary
|
|
:return: a provider instance or None on errors
|
|
"""
|
|
try:
|
|
username = cloud_settings['cloud_user_name']
|
|
apikey = cloud_settings['cloud_api_key']
|
|
region = cloud_settings['cloud_region']
|
|
except KeyError as e:
|
|
log.error("Unable to create cloud provider: {}".format(e))
|
|
return
|
|
|
|
provider = RackspaceCtrl(username, apikey)
|
|
|
|
if not provider.authenticate():
|
|
log.error("Authentication failed for cloud provider")
|
|
return
|
|
|
|
if not region:
|
|
region = provider.list_regions().values()[0]
|
|
|
|
if not provider.set_region(region):
|
|
log.error("Unable to set cloud provider region")
|
|
return
|
|
|
|
return provider
|