root / snf-cyclades-app / synnefo / management / common.py @ b84ed662
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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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import ipaddr |
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from datetime import datetime |
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from django.utils.timesince import timesince, timeuntil |
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from django.core.management import CommandError |
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from synnefo.db.models import Backend, VirtualMachine, Network, Flavor |
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from synnefo.api.util import get_image as backend_get_image |
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from synnefo.api.faults import ItemNotFound |
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from synnefo.api.util import validate_network_size |
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from synnefo.settings import MAX_CIDR_BLOCK |
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def format_bool(b): |
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return 'YES' if b else 'NO' |
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def format_date(d): |
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if not d: |
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return '' |
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if d < datetime.now():
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return timesince(d) + ' ago' |
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else:
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return 'in ' + timeuntil(d) |
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def format_vm_state(vm): |
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if vm.operstate == "BUILD": |
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return "BUILD(" + str(vm.buildpercentage) + "%)" |
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else:
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return vm.operstate
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def validate_network_info(options): |
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subnet = options['subnet']
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gateway = options['gateway']
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subnet6 = options['subnet6']
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gateway6 = options['gateway6']
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try:
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net = ipaddr.IPv4Network(subnet) |
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prefix = net.prefixlen |
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if not validate_network_size(prefix): |
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raise CommandError("Unsupport network mask %d." |
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" Must be in range (%s,29] "
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% (prefix, MAX_CIDR_BLOCK)) |
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except ValueError: |
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raise CommandError('Malformed subnet') |
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try:
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gateway and ipaddr.IPv4Address(gateway) or None |
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except ValueError: |
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raise CommandError('Malformed gateway') |
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try:
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subnet6 and ipaddr.IPv6Network(subnet6) or None |
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except ValueError: |
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raise CommandError('Malformed subnet6') |
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try:
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gateway6 and ipaddr.IPv6Address(gateway6) or None |
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except ValueError: |
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raise CommandError('Malformed gateway6') |
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return subnet, gateway, subnet6, gateway6
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def get_backend(backend_id): |
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try:
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backend_id = int(backend_id)
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return Backend.objects.get(id=backend_id)
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except ValueError: |
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raise CommandError("Invalid Backend ID: %s" % backend_id) |
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except Backend.DoesNotExist:
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raise CommandError("Backend with ID %s not found in DB. " |
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" Use snf-manage backend-list to find"
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" out available backend IDs." % backend_id)
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def get_image(image_id, user_id): |
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if image_id:
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try:
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return backend_get_image(image_id, user_id)
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except ItemNotFound:
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raise CommandError("Image with ID %s not found." |
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" Use snf-manage image-list to find"
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" out available image IDs." % image_id)
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else:
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raise CommandError("image-id is mandatory") |
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def get_vm(server_id): |
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try:
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server_id = int(server_id)
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return VirtualMachine.objects.get(id=server_id)
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except ValueError: |
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raise CommandError("Invalid server ID: %s", server_id) |
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except VirtualMachine.DoesNotExist:
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raise CommandError("Server with ID %s not found in DB." |
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" Use snf-manage server-list to find out"
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" available server IDs." % server_id)
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def get_network(network_id): |
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try:
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network_id = int(network_id)
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return Network.objects.get(id=network_id)
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except ValueError: |
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raise CommandError("Invalid network ID: %s", network_id) |
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except Network.DoesNotExist:
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raise CommandError("Network with ID %s not found in DB." |
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" Use snf-manage network-list to find out"
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" available network IDs." % network_id)
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def get_flavor(flavor_id): |
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try:
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flavor_id = int(flavor_id)
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return Flavor.objects.get(id=flavor_id)
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except ValueError: |
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raise CommandError("Invalid flavor ID: %s", flavor_id) |
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except Flavor.DoesNotExist:
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raise CommandError("Flavor with ID %s not found in DB." |
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" Use snf-manage flavor-list to find out"
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" available flavor IDs." % flavor_id)
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