root / snf-cyclades-app / synnefo / logic / management / commands / backend_create.py @ 1a894bfe
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# Copyright 2011-2012 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and documentation are
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# those of the authors and should not be interpreted as representing official
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# policies, either expressed or implied, of GRNET S.A.
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#
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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.db.models import Backend |
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from django.db.utils import IntegrityError |
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from synnefo.logic.backend import get_physical_resources, \ |
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update_resources, \
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create_client
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from synnefo.util.rapi import GanetiApiError |
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class Command(BaseCommand): |
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can_import_settings = True
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help = 'Create a new backend.'
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output_transaction = True # The management command runs inside |
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# an SQL transaction
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option_list = BaseCommand.option_list + ( |
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make_option('--clustername', dest='clustername'), |
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make_option('--port', dest='port', default=5080), |
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make_option('--username', dest='username'), |
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make_option('--password', dest='password'), |
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make_option('--drained', action='store_true', |
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dest='drained',default=False, |
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help="Set as drained to exclude from allocations"),
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make_option('--no-check', action='store_false', |
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dest='check', default=True, |
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help="Do not perform credentials check and resources update")
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) |
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def handle(self, **options): |
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clustername = options['clustername']
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port= options['port']
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username = options['username']
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password = options['password']
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drained = options['drained']
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if not (clustername and username and password): |
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raise CommandError("Clustername, username and password must be supplied") |
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# Ensure correctness of credentials
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if options['check']: |
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self.stdout.write('Checking connectivity and credentials.\n') |
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try:
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client = create_client(clustername, port, username, password) |
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# This command will raise an exception if there is no write-access
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client.ModifyCluster() |
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except GanetiApiError as e: |
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self.stdout.write('Check failed:\n%s\n' %e) |
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return
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else:
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self.stdout.write('Check passed.\n') |
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# Create the new backend in database
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try:
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backend = Backend.objects.create(clustername=clustername, |
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port=port, |
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username=username, |
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password=password, |
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drained=drained) |
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except IntegrityError as e: |
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self.stdout.write("Cannot create backend: %s\n" % e) |
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else:
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if options['check']: |
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self.stdout.write('\nRetriving backend resources:\n') |
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resources = get_physical_resources(backend) |
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attr = ['mfree', 'mtotal', 'dfree', 'dtotal', 'pinst_cnt', 'ctotal'] |
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for a in attr: |
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self.stdout.write(a + ' : ' + str(resources[a])+'\n') |
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update_resources(backend, resources) |
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self.stdout.write('\nSuccessfully created backend with id %d\n' % |
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backend.id) |
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