root / snf-cyclades-app / synnefo / logic / management / commands / backend-modify.py @ 67c08a61
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# Copyright 2012 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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from optparse import make_option |
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from django.core.management.base import BaseCommand, CommandError |
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from synnefo.management.common import get_backend, check_backend_credentials |
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class Command(BaseCommand): |
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output_transaction = True
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args = "<backend ID>"
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help = "Modify a backend"
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option_list = BaseCommand.option_list + ( |
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make_option('--clustername',
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dest='clustername',
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help="Set backend's clustername"),
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make_option('--port',
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dest='port',
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help="Set backend's port"),
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make_option('--username',
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dest='username',
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help="Set backend'username"),
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make_option('--password',
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dest='password',
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help="Set backend's password"),
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make_option('--drained',
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dest='drained',
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action='store_true',
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help="Set the backend as drained to exclude from allocation "\
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"operations"),
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make_option('--no-drained',
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dest='drained',
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action='store_false'),
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make_option('--offline',
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dest='offline',
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action='store_true',
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help="Set the backend as offline to not communicate in order "\
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"to avoid delays"),
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make_option('--no-offline',
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dest='offline',
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action='store_false')
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) |
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def handle(self, *args, **options): |
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if len(args) != 1: |
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raise CommandError("Please provide a backend ID") |
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backend = get_backend(args[0])
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# Ensure fields correspondence with options and Backend model
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fields = ('clustername', 'port', 'username', 'password', 'drained', |
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'offline')
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for field in fields: |
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value = options.get(field) |
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if value is not None: |
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backend.__setattr__(field, value) |
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credentials = ('clustername', 'port', 'username', 'password') |
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for field in credentials: |
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if options.get(field):
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# check credentials, if any of them changed!
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check_backend_credentials(backend.clustername, backend.port, |
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backend.username, backend.password) |
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return
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backend.save() |