--- /dev/null
+#!/usr/bin/env python
+
+#
+# test_bgp_vrf_netns_topo1.py
+# Part of NetDEF Topology Tests
+#
+# Copyright (c) 2018 by 6WIND
+#
+# Permission to use, copy, modify, and/or distribute this software
+# for any purpose with or without fee is hereby granted, provided
+# that the above copyright notice and this permission notice appear
+# in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
+# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+# OF THIS SOFTWARE.
+#
+
+"""
+test_bgp_vrf_netns_topo1.py: Test BGP topology with EBGP on NETNS VRF
+"""
+
+import json
+import os
+import sys
+import pytest
+import getopt
+
+# Save the Current Working Directory to find configuration files.
+CWD = os.path.dirname(os.path.realpath(__file__))
+sys.path.append(os.path.join(CWD, '../'))
+
+# pylint: disable=C0413
+# Import topogen and topotest helpers
+from lib import topotest
+from lib.topogen import Topogen, TopoRouter, get_topogen
+from lib.topolog import logger
+
+# Required to instantiate the topology builder class.
+from mininet.topo import Topo
+
+total_ebgp_peers = 1
+CustomizeVrfWithNetns = True
+
+#####################################################
+##
+## Network Topology Definition
+##
+#####################################################
+
+class BGPVRFNETNSTopo1(Topo):
+ "BGP EBGP VRF NETNS Topology 1"
+
+ def build(self, **_opts):
+ tgen = get_topogen(self)
+
+ # Setup Routers
+ tgen.add_router('r1')
+
+ # Setup Switches
+ switch = tgen.add_switch('s1')
+ switch.add_link(tgen.gears['r1'])
+
+ # Add eBGP ExaBGP neighbors
+ peer_ip = '10.0.1.101'
+ peer_route = 'via 10.0.1.1'
+ peer = tgen.add_exabgp_peer('peer1',
+ ip=peer_ip, defaultRoute=peer_route)
+ switch = tgen.gears['s1']
+ switch.add_link(peer)
+
+
+#####################################################
+##
+## Tests starting
+##
+#####################################################
+
+def setup_module(module):
+ tgen = Topogen(BGPVRFNETNSTopo1, module.__name__)
+ tgen.start_topology()
+
+ # Get r1 reference
+ router = tgen.gears['r1']
+
+ # check for zebra capability
+ if CustomizeVrfWithNetns == True:
+ if router.check_capability(
+ TopoRouter.RD_ZEBRA,
+ '--vrfwnetns'
+ ) == False:
+ return pytest.skip('Skipping BGP VRF NETNS Test. VRF NETNS backend not available on FRR')
+ if os.system('ip netns list') != 0:
+ return pytest.skip('Skipping BGP VRF NETNS Test. NETNS not available on System')
+ # retrieve VRF backend kind
+ if CustomizeVrfWithNetns == True:
+ logger.info('Testing with VRF Namespace support')
+
+ # create VRF r1-cust1
+ # move r1-eth0 to VRF r1-cust1
+ cmds = ['ip netns add {0}-cust1',
+ 'ip link set dev {0}-eth0 netns {0}-cust1',
+ 'ip netns exec {0}-cust1 ifconfig {0}-eth0 up']
+ for cmd in cmds:
+ router.run(cmd.format('r1'))
+
+ #run daemons
+ router.load_config(
+ TopoRouter.RD_ZEBRA,
+ os.path.join(CWD, '{}/zebra.conf'.format('r1')),
+ '--vrfwnetns'
+ )
+ router.load_config(
+ TopoRouter.RD_BGP,
+ os.path.join(CWD, '{}/bgpd.conf'.format('r1'))
+ )
+
+ logger.info('Launching BGP and ZEBRA')
+ # BGP and ZEBRA start without underlying VRF
+ router.start()
+ # Starting Hosts and init ExaBGP on each of them
+ topotest.sleep(10, 'starting BGP on peer')
+ peer_list = tgen.exabgp_peers()
+ for pname, peer in peer_list.iteritems():
+ peer_dir = os.path.join(CWD, pname)
+ env_file = os.path.join(CWD, 'exabgp.env')
+ topotest.sleep(1, 'Running ExaBGP peer')
+ peer.start(peer_dir, env_file)
+ logger.info(pname)
+
+def teardown_module(module):
+ tgen = get_topogen()
+ # move back r1-eth0 to default VRF
+ # delete VRF r1-cust1
+ cmds = ['ip netns delete {0}-cust1',
+ 'ip netns exec {0}-cust1 ip link set {0}-eth0 netns 1']
+ for cmd in cmds:
+ tgen.net['r1'].cmd(cmd.format('r1'))
+
+ tgen.stop_topology()
+
+def test_bgp_vrf_learn():
+ "Test daemon learnt VRF context"
+ tgen = get_topogen()
+
+ # Skip if previous fatal error condition is raised
+ if tgen.routers_have_failure():
+ pytest.skip(tgen.errors)
+
+ # Expected result
+ output = tgen.gears['r1'].vtysh_cmd("show vrf", isjson=False)
+ logger.info('output is: {}'.format(output))
+
+ output = tgen.gears['r1'].vtysh_cmd("show bgp vrfs", isjson=False)
+ logger.info('output is: {}'.format(output))
+
+
+def test_bgp_convergence():
+ "Test for BGP topology convergence"
+ tgen = get_topogen()
+
+ # uncomment if you want to troubleshoot
+ # tgen.mininet_cli()
+ # Skip if previous fatal error condition is raised
+ if tgen.routers_have_failure():
+ pytest.skip(tgen.errors)
+
+ topotest.sleep(20, 'waiting for bgp convergence')
+
+ # Expected result
+ router = tgen.gears['r1']
+ if router.has_version('<', '3.0'):
+ reffile = os.path.join(CWD, 'r1/summary20.txt')
+ else:
+ reffile = os.path.join(CWD, 'r1/summary.txt')
+
+ expected = json.loads(open(reffile).read())
+
+ # Define test function and call it
+ def _convergence_test():
+ output = router.vtysh_cmd('show bgp vrf r1-cust1 summary json', isjson=True)
+ return topotest.json_cmp(output, expected)
+
+ _, res = topotest.run_and_expect(_convergence_test, None, count=10, wait=1)
+ assertmsg = 'BGP router network did not converge'
+ assert res is None, assertmsg
+
+def test_bgp_vrf_netns():
+ tgen = get_topogen()
+
+ # Skip if previous fatal error condition is raised
+ if tgen.routers_have_failure():
+ pytest.skip(tgen.errors)
+
+ expect = {
+ 'routerId': '10.0.1.1',
+ 'routes': {
+ },
+ }
+
+ for subnet in range(0, 10):
+ netkey = '10.201.{}.0/24'.format(subnet)
+ expect['routes'][netkey] = []
+ peer = {'valid': True}
+ expect['routes'][netkey].append(peer)
+
+ def _output_cmp():
+ output = tgen.gears['r1'].vtysh_cmd('show ip bgp vrf r1-cust1 ipv4 json', isjson=True)
+ return topotest.json_cmp(output, expect)
+
+ _, res = topotest.run_and_expect(_output_cmp, None, count=1, wait=3)
+ assertmsg = 'expected routes in "show ip bgp vrf r1-cust1 ipv4" output'
+ assert res is None, assertmsg
+
+if __name__ == '__main__':
+
+ args = ["-s"] + sys.argv[1:]
+ ret = pytest.main(args)
+
+ sys.exit(ret)
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