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