sdnvpn/test/functest/testcase_12.py

   1 #!/usr/bin/env python
   2 #
   3 # Copyright (c) 2017 All rights reserved
   4 # This program and the accompanying materials
   5 # are made available under the terms of the Apache License, Version 2.0
   6 # which accompanies this distribution, and is available at
   7 #
   8 # http://www.apache.org/licenses/LICENSE-2.0
   9 #
  10
  11 import logging
  12 import sys
  13
  14 from sdnvpn.lib import config as sdnvpn_config
  15 from sdnvpn.lib import openstack_utils as os_utils
  16 from sdnvpn.lib import utils as test_utils
  17 from sdnvpn.lib.results import Results
  18
  19 logger = logging.getLogger(__name__)
  20
  21 COMMON_CONFIG = sdnvpn_config.CommonConfig()
  22 TESTCASE_CONFIG = sdnvpn_config.TestcaseConfig(
  23     'sdnvpn.test.functest.testcase_12')
  24
  25
  26 def main():
  27     conn = os_utils.get_os_connection()
  28     results = Results(COMMON_CONFIG.line_length, conn)
  29
  30     results.add_to_summary(0, "=")
  31     results.add_to_summary(2, "STATUS", "SUBTEST")
  32     results.add_to_summary(0, "=")
  33
  34     neutron_client = os_utils.get_neutron_client()
  35     openstack_nodes = test_utils.get_nodes()
  36
  37     (floatingip_ids, instance_ids, router_ids, network_ids, image_ids,
  38      subnet_ids, interfaces, bgpvpn_ids) = ([] for i in range(8))
  39
  40     try:
  41         image_id = os_utils.create_glance_image(
  42             conn, TESTCASE_CONFIG.image_name,
  43             COMMON_CONFIG.image_path, disk=COMMON_CONFIG.image_format,
  44             container="bare", public='public')
  45         image_ids.append(image_id)
  46
  47         network_1_id = test_utils.create_net(conn,
  48                                              TESTCASE_CONFIG.net_1_name)
  49         subnet_1_id = test_utils.create_subnet(conn,
  50                                                TESTCASE_CONFIG.subnet_1_name,
  51                                                TESTCASE_CONFIG.subnet_1_cidr,
  52                                                network_1_id)
  53
  54         network_ids.append(network_1_id)
  55         subnet_ids.append(subnet_1_id)
  56
  57         sg_id = os_utils.create_security_group_full(
  58             conn, TESTCASE_CONFIG.secgroup_name,
  59             TESTCASE_CONFIG.secgroup_descr)
  60
  61         # Check required number of compute nodes
  62         compute_hostname = conn.compute.hypervisors().next().name
  63         compute_nodes = [node for node in openstack_nodes
  64                          if node.is_compute()]
  65
  66         av_zone_1 = "nova:" + compute_hostname
  67         # List of OVS bridges to get groups
  68         ovs_br = "br-int"
  69         # Get a list of flows and groups, before start topology
  70         initial_ovs_flows = len(test_utils.get_ovs_flows(compute_nodes,
  71                                                          [ovs_br]))
  72         initial_ovs_groups = len(test_utils.get_ovs_groups(compute_nodes,
  73                                                            [ovs_br]))
  74
  75         # boot INSTANCES
  76         vm_2 = test_utils.create_instance(
  77             conn,
  78             TESTCASE_CONFIG.instance_2_name,
  79             image_id,
  80             network_1_id,
  81             sg_id,
  82             secgroup_name=TESTCASE_CONFIG.secgroup_name,
  83             compute_node=av_zone_1)
  84
  85         vm_1 = test_utils.create_instance(
  86             conn,
  87             TESTCASE_CONFIG.instance_1_name,
  88             image_id,
  89             network_1_id,
  90             sg_id,
  91             secgroup_name=TESTCASE_CONFIG.secgroup_name,
  92             compute_node=av_zone_1)
  93         instance_ids.extend([vm_1.id, vm_2.id])
  94
  95         # Wait for VMs to get ips.
  96         instances_up = test_utils.wait_for_instances_up(vm_1, vm_2)
  97
  98         if not instances_up:
  99             logger.error("One or more instances is down")
 100
 101         logger.info("Wait before subtest")
 102         test_utils.wait_before_subtest()
 103         # Get added OVS flows and groups
 104         added_ovs_flows = len(test_utils.get_ovs_flows(compute_nodes,
 105                                                        [ovs_br]))
 106         added_ovs_groups = len(test_utils.get_ovs_groups(compute_nodes,
 107                                                          [ovs_br]))
 108         # Check if flows and groups added successfully
 109         results.record_action("Check if new flows and groups were added "
 110                               "to OVS")
 111
 112         msg = "New OVS flows added"
 113         results.add_to_summary(0, "-")
 114         if added_ovs_flows - initial_ovs_flows > 0:
 115             results.add_success(msg)
 116         else:
 117             results.add_failure(msg)
 118         results.add_to_summary(0, "=")
 119
 120         msg = "New OVS groups added"
 121         results.add_to_summary(0, "-")
 122         if added_ovs_groups - initial_ovs_groups > 0:
 123             results.add_success(msg)
 124         else:
 125             results.add_failure(msg)
 126         results.add_to_summary(0, "=")
 127
 128         get_ext_ip_cmd = "sudo ovs-vsctl get-controller {}".format(ovs_br)
 129         ovs_controller_conn = (compute_nodes[0].run_cmd(get_ext_ip_cmd).
 130                                strip().split('\n')[0])
 131
 132         for compute_node in compute_nodes:
 133             # Disconnect OVS from controller
 134             compute_node.run_cmd("sudo ovs-vsctl del-controller {}".
 135                                  format(ovs_br))
 136             test_utils.wait_before_subtest()
 137             # Connect again OVS to Controller
 138             compute_node.run_cmd("sudo ovs-vsctl set-controller {} {}".
 139                                  format(ovs_br, ovs_controller_conn))
 140
 141         logger.info("Wait before subtest resync type 1")
 142         test_utils.wait_before_subtest()
 143         # Get OVS flows added after the reconnection
 144         resynced_ovs_flows = len(test_utils.get_ovs_flows(
 145             compute_nodes, [ovs_br]))
 146         # Get OVS groups added after the reconnection
 147         resynced_ovs_groups = len(test_utils.get_ovs_groups(
 148             compute_nodes, [ovs_br]))
 149
 150         record_action_msg = ("Check if flows/groups are reprogrammed in OVS "
 151                              "after its reconnection by del/set controller.")
 152         record_test_result(added_ovs_flows, resynced_ovs_flows,
 153                            added_ovs_groups, resynced_ovs_groups,
 154                            record_action_msg, results)
 155
 156         for compute_node in compute_nodes:
 157             # Disconnect OVS from controller
 158             compute_node.run_cmd("sudo iptables -A OUTPUT -p tcp --dport 6653"
 159                                  " -j DROP")
 160             test_utils.wait_before_subtest()
 161             # Connect again OVS to Controller
 162             compute_node.run_cmd("sudo iptables -D OUTPUT -p tcp --dport 6653"
 163                                  " -j DROP")
 164
 165         logger.info("Wait before subtest resync type 2")
 166         test_utils.wait_before_subtest()
 167         # Get OVS flows added after the reconnection
 168         resynced_ovs_flows = len(test_utils.get_ovs_flows(
 169             compute_nodes, [ovs_br]))
 170         # Get OVS groups added after the reconnection
 171         resynced_ovs_groups = len(test_utils.get_ovs_groups(
 172             compute_nodes, [ovs_br]))
 173
 174         record_action_msg = ("Check if flows/groups are reprogrammed in OVS "
 175                              "after its reconnection by firewall rule for "
 176                              "OF port block/unblok")
 177         record_test_result(added_ovs_flows, resynced_ovs_flows,
 178                            added_ovs_groups, resynced_ovs_groups,
 179                            record_action_msg, results)
 180
 181     except Exception as e:
 182         logger.error("exception occurred while executing testcase_12: %s", e)
 183         raise
 184     finally:
 185         # Cleanup topology
 186         test_utils.cleanup_nova(conn, instance_ids)
 187         test_utils.cleanup_glance(conn, image_ids)
 188         test_utils.cleanup_neutron(conn, neutron_client, floatingip_ids,
 189                                    bgpvpn_ids, interfaces, subnet_ids,
 190                                    router_ids, network_ids)
 191
 192     return results.compile_summary()
 193
 194
 195 def record_test_result(expected_flow_count, actual_flow_count,
 196                        expected_group_count, actual_group_count,
 197                        record_msg, results):
 198     results.record_action(record_msg)
 199     msg = ("OVS flows are programmed after resync expected flow count %s,"
 200            " actual flow count %s" % (str(expected_flow_count),
 201                                       str(actual_flow_count)))
 202     results.add_to_summary(0, "-")
 203     # Using <= for flow validation because ODL adds some more
 204     # ARP/ICMP flows after VMs spawn up
 205     if expected_flow_count <= actual_flow_count:
 206         results.add_success(msg)
 207     else:
 208         results.add_failure(msg)
 209     results.add_to_summary(0, "=")
 210
 211     msg = ("OVS groups are programmed after resync expected group count %s,"
 212            " actual group count %s" % (str(expected_group_count),
 213                                        str(actual_group_count)))
 214     results.add_to_summary(0, "-")
 215     if expected_group_count == actual_group_count:
 216         results.add_success(msg)
 217     else:
 218         results.add_failure(msg)
 219     results.add_to_summary(0, "=")
 220
 221
 222 if __name__ == '__main__':
 223     sys.exit(main())