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root / snf-cyclades-app / synnefo / cyclades_settings.py @ ff5edb80

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# Copyright 2013-2014 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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#   1. Redistributions of source code must retain the above
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#      copyright notice, this list of conditions and the following
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#      disclaimer.
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#
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#   2. Redistributions in binary form must reproduce the above
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#      copyright notice, this list of conditions and the following
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#      disclaimer in the documentation and/or other materials
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#      provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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import logging
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from django.conf import settings
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from synnefo.lib import join_urls, parse_base_url
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from synnefo.api.services import cyclades_services as vanilla_cyclades_services
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from synnefo.lib.services import fill_endpoints
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from astakosclient import AstakosClient
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from copy import deepcopy
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logger = logging.getLogger(__name__)
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# --------------------------------------------------------------------
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# Process Cyclades settings
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BASE_URL = getattr(settings, 'CYCLADES_BASE_URL',
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                   'https://compute.example.synnefo.org/compute/')
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BASE_HOST, BASE_PATH = parse_base_url(BASE_URL)
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SERVICE_TOKEN = getattr(settings, 'CYCLADES_SERVICE_TOKEN', "")
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cyclades_services = deepcopy(vanilla_cyclades_services)
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fill_endpoints(cyclades_services, BASE_URL)
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COMPUTE_PREFIX = cyclades_services['cyclades_compute']['prefix']
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NETWORK_PREFIX = cyclades_services['cyclades_network']['prefix']
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VMAPI_PREFIX = cyclades_services['cyclades_vmapi']['prefix']
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PLANKTON_PREFIX = cyclades_services['cyclades_plankton']['prefix']
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HELPDESK_PREFIX = cyclades_services['cyclades_helpdesk']['prefix']
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UI_PREFIX = cyclades_services['cyclades_ui']['prefix']
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USERDATA_PREFIX = cyclades_services['cyclades_userdata']['prefix']
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ADMIN_PREFIX = cyclades_services['cyclades_admin']['prefix']
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COMPUTE_ROOT_URL = join_urls(BASE_URL, COMPUTE_PREFIX)
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# --------------------------------------------------------------------
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# Process Astakos settings
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ASTAKOS_AUTH_URL = getattr(
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    settings, 'ASTAKOS_AUTH_URL',
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    'https://accounts.example.synnefo.org/astakos/identity/v2.0')
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# --------------------------------------
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# Define a LazyAstakosUrl
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# This is used to define ASTAKOS_ACCOUNT_URL and
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# ASTAKOS_UI_URL and should never be used as is.
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class LazyAstakosUrl(object):
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    def __init__(self, endpoints_name):
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        self.endpoints_name = endpoints_name
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    def __str__(self):
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        if not hasattr(self, 'str'):
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            try:
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                astakos_client = \
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                    AstakosClient(SERVICE_TOKEN, ASTAKOS_AUTH_URL)
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                self.str = getattr(astakos_client, self.endpoints_name)
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            except Exception as excpt:
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                logger.exception(
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                    "Could not retrieve endpoints from Astakos url %s: %s",
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                    ASTAKOS_AUTH_URL, excpt)
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                return ""
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        return self.str
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# --------------------------------------
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# Define ASTAKOS_UI_URL and ASTAKOS_ACCOUNT_URL as LazyAstakosUrl
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# These are used to define the proxy paths.
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# These have to be resolved lazily (by the proxy function) so
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# they should not be used as is.
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ASTAKOS_ACCOUNT_URL = LazyAstakosUrl('account_url')
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ASTAKOS_UI_URL = LazyAstakosUrl('ui_url')
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# --------------------------------------
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# Define Astakos prefixes
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ASTAKOS_PROXY_PREFIX = getattr(settings, 'CYCLADES_PROXY_PREFIX', '_astakos')
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ASTAKOS_AUTH_PREFIX = join_urls('/', ASTAKOS_PROXY_PREFIX, 'identity')
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ASTAKOS_ACCOUNT_PREFIX = join_urls('/', ASTAKOS_PROXY_PREFIX, 'account')
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ASTAKOS_UI_PREFIX = join_urls('/', ASTAKOS_PROXY_PREFIX, 'ui')
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# --------------------------------------
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# Define Astakos proxy paths
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ASTAKOS_AUTH_PROXY_PATH = join_urls(BASE_PATH, ASTAKOS_AUTH_PREFIX)
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ASTAKOS_ACCOUNT_PROXY_PATH = join_urls(BASE_PATH, ASTAKOS_ACCOUNT_PREFIX)
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ASTAKOS_UI_PROXY_PATH = join_urls(BASE_PATH, ASTAKOS_UI_PREFIX)