mirror of https://github.com/GNS3/gns3-server
Fix #557 - mac addess collision when running IOU on multiple GNS3 servers
parent
1d09f423e5
commit
6aa2afcf54
@ -0,0 +1,36 @@
|
||||
# -*- coding: utf-8 -*-
|
||||
#
|
||||
# Copyright (C) 2017 GNS3 Technologies Inc.
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation, either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
from ..iou_error import IOUError
|
||||
|
||||
import logging
|
||||
log = logging.getLogger(__name__)
|
||||
|
||||
|
||||
def get_next_application_id(nodes):
|
||||
"""
|
||||
Calculates free application_id from given nodes
|
||||
:param nodes:
|
||||
:raises IOUError when exceeds number
|
||||
:return: integer first free id
|
||||
"""
|
||||
used = set([n.properties.get('application_id') for n in nodes if n.node_type == 'iou'])
|
||||
pool = set(range(1, 512))
|
||||
try:
|
||||
return (pool - used).pop()
|
||||
except KeyError:
|
||||
raise IOUError("Cannot create a new IOU VM (limit of 512 VMs reached)")
|
@ -0,0 +1,38 @@
|
||||
# -*- coding: utf-8 -*-
|
||||
#
|
||||
# Copyright (C) 2017 GNS3 Technologies Inc.
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation, either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
import pytest
|
||||
from unittest.mock import MagicMock
|
||||
from gns3server.compute.iou.utils.application_id import get_next_application_id, IOUError
|
||||
|
||||
|
||||
def test_get_next_application_id():
|
||||
# test first node
|
||||
assert get_next_application_id([]) == 1
|
||||
|
||||
# test second node
|
||||
nodes = [
|
||||
MagicMock(node_type='different'),
|
||||
MagicMock(node_type='iou', properties=dict(application_id=1))
|
||||
]
|
||||
assert get_next_application_id(nodes) == 2
|
||||
|
||||
# test reach out the limit
|
||||
nodes = [MagicMock(node_type='iou', properties=dict(application_id=i)) for i in range(1, 512)]
|
||||
|
||||
with pytest.raises(IOUError):
|
||||
get_next_application_id(nodes)
|
Loading…
Reference in new issue