root / snf-cyclades-app / synnefo / api / management / commands / server-list.py @ 7856a37a
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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 (format_vm_state, get_backend, Omit, |
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filter_results, pprint_table, UserCache) |
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from synnefo.api.util import get_image |
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from synnefo.db.models import VirtualMachine |
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import logging |
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log = logging.getLogger(__name__) |
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FIELDS = VirtualMachine._meta.get_all_field_names() |
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class Command(BaseCommand): |
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help = "List servers"
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option_list = BaseCommand.option_list + ( |
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make_option('-c',
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action='store_true',
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dest='csv',
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default=False,
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help="Use pipes to separate values"),
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make_option('--suspended',
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action='store_true',
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dest='suspended',
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default=False,
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help="List only suspended servers"),
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make_option('--build',
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action='store_true',
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dest='build',
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default=False,
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help="List only servers in the building state"),
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make_option('--deleted',
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action='store_true',
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dest='deleted',
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default=False,
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help="Include deleted servers"),
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make_option('--backend-id',
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dest='backend_id',
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help="List only servers of the specified backend"),
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make_option('--user',
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dest='user',
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help="List only servers of the specified user (uuid or email)"),
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make_option('--filter-by',
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dest='filter_by',
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help="Filter results. Comma seperated list of key `cond` val pairs"
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" that displayed entries must satisfy. e.g."
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" --filter-by \"operstate=STARTED,id>=22\"."
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" Available keys are: %s" % ", ".join(FIELDS)), |
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make_option('--displayname',
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action='store_true',
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dest='displayname',
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default=False,
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help="Display both uuid and display name"),
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) |
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def handle(self, *args, **options): |
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if args:
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raise CommandError("Command doesn't accept any arguments") |
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ucache = UserCache() |
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if options['backend_id']: |
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backend = get_backend(options['backend_id'])
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servers = backend.virtual_machines |
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else:
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servers = VirtualMachine.objects |
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if options['deleted']: |
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servers = servers.all() |
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else:
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servers = servers.filter(deleted=False)
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if options['suspended']: |
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servers = servers.filter(suspended=True)
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if options['build']: |
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servers = servers.filter(operstate='BUILD')
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user = options['user']
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if user:
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if '@' in user: |
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user = ucache.get_uuid(user) |
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servers = servers.filter(userid=user) |
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filter_by = options['filter_by']
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if filter_by:
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servers = filter_results(servers, filter_by) |
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displayname = options['displayname']
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cache = ImageCache() |
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headers = filter(lambda x: x is not Omit, |
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['id',
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'name',
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'owner_uuid',
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'owner_name' if displayname else Omit, |
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'flavor',
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'image',
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'state',
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'backend',
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]) |
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uuids = list(set([server.userid for server in servers])) |
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ucache.fetch_names(uuids) |
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table = [] |
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for server in servers.order_by('id'): |
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try:
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name = server.name.decode('utf8')
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except UnicodeEncodeError: |
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name = server.name |
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flavor = server.flavor.name |
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image = cache.get_image(server.imageid, server.userid) |
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state = format_vm_state(server) |
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uuid = server.userid |
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if displayname:
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dname = ucache.get_name(server.userid) |
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fields = filter(lambda x: x is not Omit, |
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[str(server.id),
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name, |
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uuid, |
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dname if displayname else Omit, |
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flavor, |
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image, |
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state, |
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str(server.backend),
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]) |
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table.append(fields) |
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separator = " | " if options['csv'] else None |
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pprint_table(self.stdout, table, headers, separator)
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class ImageCache(object): |
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def __init__(self): |
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self.images = {}
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def get_image(self, imageid, userid): |
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if not imageid in self.images: |
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try:
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self.images[imageid] = get_image(imageid, userid)['name'] |
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except Exception as e: |
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log.warning("Error getting image name from imageid %s",
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imageid, e) |
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self.images[imageid] = imageid
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return self.images[imageid] |