/usr/lib/python2.7/dist-packages/ovsdbapp/venv.py is in python-ovsdbapp 0.9.1-0ubuntu1.
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# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import glob
import os
import shutil
import signal
import subprocess
import time
import fixtures
# These are the valid dummy values for ovs-vswitchd process. They are here just
# to get user enumeration. See man ovs-vswitchd(8) for more information.
DUMMY_OVERRIDE_ALL = 'override'
DUMMY_OVERRIDE_SYSTEM = 'system'
DUMMY_OVERRIDE_NONE = ''
class OvsVenvFixture(fixtures.Fixture):
PATH_VAR_TEMPLATE = "{0}/ovsdb:{0}/vswitchd:{0}/utilities"
def __init__(self, venv, ovsdir, dummy=DUMMY_OVERRIDE_ALL, remove=False):
"""Initialize fixture
:param venv: Path to venv directory.
:param ovsdir: Path to directory containing ovs source codes.
:param dummy: One of following: an empty string, 'override' or
'system'.
:param remove: Boolean value whether venv directory should be removed
at the fixture cleanup.
"""
self.venv = venv
self.env = {'OVS_RUNDIR': self.venv, 'OVS_LOGDIR': self.venv,
'OVS_DBDIR': self.venv, 'OVS_SYSCONFDIR': self.venv}
if ovsdir:
self.ovsdir = ovsdir
self.env['PATH'] = (self.PATH_VAR_TEMPLATE.format(self.ovsdir) +
":%s" % os.getenv('PATH'))
else:
self.env['PATH'] = os.getenv('PATH')
self.ovsdir = os.path.join('/usr', 'local', 'share', 'openvswitch')
if not os.path.isdir(self.ovsdir):
self.ovsdir = os.path.join('/usr', 'share', 'openvswitch')
if not os.path.isdir(self.ovsdir):
raise Exception("%s is not a directory" % self.ovsdir)
self._dummy = dummy
self.remove = remove
self.ovsdb_server_dbs = []
@property
def ovs_schema(self):
path = os.path.join(self.ovsdir, 'vswitchd', 'vswitch.ovsschema')
if os.path.isfile(path):
return path
return os.path.join(self.ovsdir, 'vswitch.ovsschema')
@property
def dummy_arg(self):
return "--enable-dummy=%s" % self._dummy
@property
def ovs_connection(self):
return 'unix:' + os.path.join(self.venv, 'db.sock')
def _setUp(self):
super(OvsVenvFixture, self)._setUp()
self.addCleanup(self.deactivate)
if not os.path.isdir(self.venv):
os.mkdir(self.venv)
self.setup_dbs()
self.start_ovsdb_processes()
time.sleep(1) # wait_until_true(os.path.isfile(db_sock)
self.init_processes()
def setup_dbs(self):
db_filename = 'conf.db'
self.create_db(db_filename, self.ovs_schema)
self.ovsdb_server_dbs.append(db_filename)
def start_ovsdb_processes(self):
self.call([
'ovsdb-server',
'--remote=p' + self.ovs_connection,
'--detach', '--no-chdir', '--pidfile', '-vconsole:off',
'--log-file'] + self.ovsdb_server_dbs)
def init_processes(self):
self.call(['ovs-vsctl', '--no-wait', '--', 'init'])
self.call(['ovs-vswitchd', '--detach', '--no-chdir', '--pidfile',
'-vconsole:off', '-vvconn', '-vnetdev_dummy', '--log-file',
self.dummy_arg, self.ovs_connection])
def deactivate(self):
self.kill_processes()
if self.remove:
shutil.rmtree(self.venv, ignore_errors=True)
def create_db(self, name, schema):
filename = os.path.join(self.venv, name)
if not os.path.isfile(filename):
return self.call(['ovsdb-tool', '-v', 'create', name, schema])
def call(self, cmd, *args, **kwargs):
cwd = kwargs.pop('cwd', self.venv)
return subprocess.check_call(
cmd, *args, env=self.env, cwd=cwd, **kwargs)
def get_pids(self):
files = glob.glob(os.path.join(self.venv, "*.pid"))
result = []
for fname in files:
with open(fname, 'r') as f:
result.append(int(f.read().strip()))
return result
def kill_processes(self):
for pid in self.get_pids():
os.kill(pid, signal.SIGTERM)
class OvsOvnVenvFixture(OvsVenvFixture):
PATH_VAR_TEMPLATE = OvsVenvFixture.PATH_VAR_TEMPLATE + (
":{0}/vtep"
":{0}/ovn/controller:{0}/ovn/controller-vtep"
":{0}/ovn/northd:{0}/ovn/utilities")
def __init__(self, *args, **kwargs):
self.add_chassis = kwargs.pop('add_chassis', False)
super(OvsOvnVenvFixture, self).__init__(*args, **kwargs)
@property
def vtep_schema(self):
path = os.path.join(self.ovsdir, 'vtep', 'vtep.ovsschema')
if os.path.isfile(path):
return path
return os.path.join(self.ovsdir, 'vtep.ovsschema')
@property
def ovnsb_schema(self):
path = os.path.join(self.ovsdir, 'ovn', 'ovn-sb.ovsschema')
if os.path.isfile(path):
return path
return os.path.join(self.ovsdir, 'ovn-sb.ovsschema')
@property
def ovnnb_schema(self):
path = os.path.join(self.ovsdir, 'ovn', 'ovn-nb.ovsschema')
if os.path.isfile(path):
return path
return os.path.join(self.ovsdir, 'ovn-nb.ovsschema')
@property
def ovnnb_connection(self):
return 'unix:' + os.path.join(self.venv, 'ovnnb_db.sock')
@property
def ovnsb_connection(self):
return 'unix:' + os.path.join(self.venv, 'ovnsb_db.sock')
def setup_dbs(self):
super(OvsOvnVenvFixture, self).setup_dbs()
self.create_db('vtep.db', self.vtep_schema)
self.ovsdb_server_dbs.append('vtep.db')
self.create_db('ovnsb.db', self.ovnsb_schema)
self.create_db('ovnnb.db', self.ovnnb_schema)
def start_ovsdb_processes(self):
super(OvsOvnVenvFixture, self).start_ovsdb_processes()
self.call(['ovsdb-server', '--detach', '--no-chdir', '-vconsole:off',
'--pidfile=%s' % os.path.join(self.venv, 'ovnnb_db.pid'),
'--log-file=%s' % os.path.join(self.venv, 'ovnnb_db.log'),
'--remote=db:OVN_Northbound,NB_Global,connections',
'--private-key=db:OVN_Northbound,SSL,private_key',
'--certificate=db:OVN_Northbound,SSL,certificate',
'--ca-cert=db:OVN_Northbound,SSL,ca_cert',
'--ssl-protocols=db:OVN_Northbound,SSL,ssl_protocols',
'--ssl-ciphers=db:OVN_Northbound,SSL,ssl_ciphers',
'--remote=p' + self.ovnnb_connection, 'ovnnb.db'])
self.call(['ovsdb-server', '--detach', '--no-chdir', '-vconsole:off',
'--pidfile=%s' % os.path.join(self.venv, 'ovnsb_db.pid'),
'--log-file=%s' % os.path.join(self.venv, 'ovnsb_db.log'),
'--remote=db:OVN_Southbound,SB_Global,connections',
'--private-key=db:OVN_Southbound,SSL,private_key',
'--certificate=db:OVN_Southbound,SSL,certificate',
'--ca-cert=db:OVN_Southbound,SSL,ca_cert',
'--ssl-protocols=db:OVN_Southbound,SSL,ssl_protocols',
'--ssl-ciphers=db:OVN_Southbound,SSL,ssl_ciphers',
'--remote=p' + self.ovnsb_connection, 'ovnsb.db'])
def init_processes(self):
super(OvsOvnVenvFixture, self).init_processes()
self.call(['ovn-nbctl', 'init'])
self.call(['ovn-sbctl', 'init'])
if self.add_chassis:
self.call([
'ovs-vsctl', 'set', 'open', '.',
'external_ids:system-id=56b18105-5706-46ef-80c4-ff20979ab068',
'external_ids:hostname=sandbox',
'external_ids:ovn-encap-type=geneve',
'external_ids:ovn-encap-ip=127.0.0.1'])
# TODO(twilson) SSL stuff
if False:
pass
else:
self.call(['ovs-vsctl', 'set', 'open', '.',
'external_ids:ovn-remote=' + self.ovnsb_connection])
self.call(['ovn-northd', '--detach', '--no-chdir', '--pidfile',
'-vconsole:off', '--log-file',
'--ovnsb-db=' + self.ovnsb_connection,
'--ovnnb-db=' + self.ovnnb_connection])
self.call(['ovn-controller', '--detach', '--no-chdir', '--pidfile',
'-vconsole:off', '--log-file'])
self.call(['ovn-controller-vtep', '--detach', '--no-chdir',
'--pidfile', '-vconsole:off', '--log-file',
'--ovnsb-db=' + self.ovnsb_connection])
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