Add a tempest scenario for floating-ip

Examine E-W traffic with or without floating-ip.

Change-Id: Ibc480d8b8f09c978f874e1e74bd52e3d615a57f6
diff --git a/neutron/tests/tempest/scenario/test_floatingip.py b/neutron/tests/tempest/scenario/test_floatingip.py
new file mode 100644
index 0000000..4c2ebb1
--- /dev/null
+++ b/neutron/tests/tempest/scenario/test_floatingip.py
@@ -0,0 +1,139 @@
+# Copyright (c) 2017 Midokura SARL
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    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 netaddr
+from tempest.common import waiters
+from tempest.lib.common import ssh
+from tempest.lib.common.utils import data_utils
+from tempest import test
+import testscenarios
+
+from neutron.tests.tempest import config
+from neutron.tests.tempest.scenario import base
+from neutron.tests.tempest.scenario import constants
+
+
+CONF = config.CONF
+
+
+load_tests = testscenarios.load_tests_apply_scenarios
+
+
+class FloatingIpTestCasesMixin(object):
+    credentials = ['primary', 'admin']
+
+    @classmethod
+    @test.requires_ext(extension="router", service="network")
+    def resource_setup(cls):
+        super(FloatingIpTestCasesMixin, cls).resource_setup()
+        cls.network = cls.create_network()
+        cls.subnet = cls.create_subnet(cls.network)
+        cls.router = cls.create_router_by_client()
+        cls.create_router_interface(cls.router['id'], cls.subnet['id'])
+        cls.keypair = cls.create_keypair()
+
+        cls.secgroup = cls.manager.network_client.create_security_group(
+            name=data_utils.rand_name('secgroup-'))['security_group']
+        cls.security_groups.append(cls.secgroup)
+        cls.create_loginable_secgroup_rule(secgroup_id=cls.secgroup['id'])
+        cls.create_pingable_secgroup_rule(secgroup_id=cls.secgroup['id'])
+
+        cls._src_server = cls._create_server()
+        if cls.same_network:
+            cls._dest_network = cls.network
+        else:
+            cls._dest_network = cls._create_dest_network()
+        cls._dest_server_with_fip = cls._create_server(
+            network=cls._dest_network)
+        cls._dest_server_without_fip = cls._create_server(
+            create_floating_ip=False, network=cls._dest_network)
+
+    @classmethod
+    def _create_dest_network(cls):
+        network = cls.create_network()
+        subnet = cls.create_subnet(network,
+            cidr=netaddr.IPNetwork('10.10.0.0/24'))
+        cls.create_router_interface(cls.router['id'], subnet['id'])
+        return network
+
+    @classmethod
+    def _create_server(cls, create_floating_ip=True, network=None):
+        if network is None:
+            network = cls.network
+        port = cls.create_port(network, security_groups=[cls.secgroup['id']])
+        if create_floating_ip:
+            fip = cls.create_and_associate_floatingip(port['id'])
+        else:
+            fip = None
+        server = cls.create_server(
+            flavor_ref=CONF.compute.flavor_ref,
+            image_ref=CONF.compute.image_ref,
+            key_name=cls.keypair['name'],
+            networks=[{'port': port['id']}])['server']
+        waiters.wait_for_server_status(cls.manager.servers_client,
+                                       server['id'],
+                                       constants.SERVER_STATUS_ACTIVE)
+        return {'port': port, 'fip': fip, 'server': server}
+
+    def _test_east_west(self):
+        # Source VM
+        server1 = self._src_server
+        server1_ip = server1['fip']['floating_ip_address']
+        ssh_client = ssh.Client(server1_ip,
+                                CONF.validation.image_ssh_user,
+                                pkey=self.keypair['private_key'])
+
+        # Destination VM
+        if self.dest_has_fip:
+            dest_server = self._dest_server_with_fip
+        else:
+            dest_server = self._dest_server_without_fip
+
+        # Check connectivity
+        self.check_remote_connectivity(ssh_client,
+            dest_server['port']['fixed_ips'][0]['ip_address'])
+        if self.dest_has_fip:
+            self.check_remote_connectivity(ssh_client,
+                dest_server['fip']['floating_ip_address'])
+
+
+class FloatingIpSameNetwork(FloatingIpTestCasesMixin,
+                            base.BaseTempestTestCase):
+    # REVISIT(yamamoto): 'SRC without FIP' case is possible?
+    scenarios = [
+        ('DEST with FIP', dict(dest_has_fip=True)),
+        ('DEST without FIP', dict(dest_has_fip=False)),
+    ]
+
+    same_network = True
+
+    @test.idempotent_id('05c4e3b3-7319-4052-90ad-e8916436c23b')
+    def test_east_west(self):
+        self._test_east_west()
+
+
+class FloatingIpSeparateNetwork(FloatingIpTestCasesMixin,
+                                base.BaseTempestTestCase):
+    # REVISIT(yamamoto): 'SRC without FIP' case is possible?
+    scenarios = [
+        ('DEST with FIP', dict(dest_has_fip=True)),
+        ('DEST without FIP', dict(dest_has_fip=False)),
+    ]
+
+    same_network = False
+
+    @test.idempotent_id('f18f0090-3289-4783-b956-a0f8ac511e8b')
+    def test_east_west(self):
+        self._test_east_west()