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Diffstat (limited to 'sdnvpn/lib/utils.py')
-rw-r--r-- | sdnvpn/lib/utils.py | 303 |
1 files changed, 303 insertions, 0 deletions
diff --git a/sdnvpn/lib/utils.py b/sdnvpn/lib/utils.py new file mode 100644 index 0000000..b551954 --- /dev/null +++ b/sdnvpn/lib/utils.py @@ -0,0 +1,303 @@ +#!/usr/bin/python +# +# Copyright (c) 2015 All rights reserved +# This program and the accompanying materials +# are made available under the terms of the Apache License, Version 2.0 +# which accompanies this distribution, and is available at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +import sys +import time + +import functest.utils.functest_logger as ft_logger +import functest.utils.openstack_utils as os_utils +import re + +from sdnvpn.lib import config as sdnvpn_config + +logger = ft_logger.Logger("sndvpn_test_utils").getLogger() + +common_config = sdnvpn_config.CommonConfig() + + +def create_net(neutron_client, name): + logger.debug("Creating network %s", name) + net_id = os_utils.create_neutron_net(neutron_client, name) + if not net_id: + logger.error( + "There has been a problem when creating the neutron network") + sys.exit(-1) + return net_id + + +def create_subnet(neutron_client, name, cidr, net_id): + logger.debug("Creating subnet %s in network %s with cidr %s", + name, net_id, cidr) + subnet_id = os_utils.create_neutron_subnet(neutron_client, + name, + cidr, + net_id) + if not subnet_id: + logger.error( + "There has been a problem when creating the neutron subnet") + sys.exit(-1) + return subnet_id + + +def create_network(neutron_client, net, subnet1, cidr1, + router, subnet2=None, cidr2=None): + """Network assoc will not work for networks/subnets created by this function. + + It is an ODL limitation due to it handling routers as vpns. + See https://bugs.opendaylight.org/show_bug.cgi?id=6962""" + network_dic = os_utils.create_network_full(neutron_client, + net, + subnet1, + router, + cidr1) + if not network_dic: + logger.error( + "There has been a problem when creating the neutron network") + sys.exit(-1) + net_id = network_dic["net_id"] + subnet_id = network_dic["subnet_id"] + router_id = network_dic["router_id"] + + if subnet2 is not None: + logger.debug("Creating and attaching a second subnet...") + subnet_id = os_utils.create_neutron_subnet( + neutron_client, subnet2, cidr2, net_id) + if not subnet_id: + logger.error( + "There has been a problem when creating the second subnet") + sys.exit(-1) + logger.debug("Subnet '%s' created successfully" % subnet_id) + return net_id, subnet_id, router_id + + +def create_instance(nova_client, + name, + image_id, + network_id, + sg_id, + secgroup_name=None, + fixed_ip=None, + compute_node='', + userdata=None, + files=None, + **kwargs + ): + if 'flavor' not in kwargs: + kwargs['flavor'] = common_config.default_flavor + + logger.info("Creating instance '%s'..." % name) + logger.debug( + "Configuration:\n name=%s \n flavor=%s \n image=%s \n" + " network=%s\n secgroup=%s \n hypervisor=%s \n" + " fixed_ip=%s\n files=%s\n userdata=\n%s\n" + % (name, kwargs['flavor'], image_id, network_id, sg_id, + compute_node, fixed_ip, files, userdata)) + instance = os_utils.create_instance_and_wait_for_active( + kwargs['flavor'], + image_id, + network_id, + name, + config_drive=True, + userdata=userdata, + av_zone=compute_node, + fixed_ip=fixed_ip, + files=files) + + if instance is None: + logger.error("Error while booting instance.") + sys.exit(-1) + else: + logger.debug("Instance '%s' booted successfully. IP='%s'." % + (name, instance.networks.itervalues().next()[0])) + # Retrieve IP of INSTANCE + # instance_ip = instance.networks.get(network_id)[0] + + if secgroup_name: + logger.debug("Adding '%s' to security group '%s'..." + % (name, secgroup_name)) + else: + logger.debug("Adding '%s' to security group '%s'..." + % (name, sg_id)) + os_utils.add_secgroup_to_instance(nova_client, instance.id, sg_id) + + return instance + + +def generate_ping_userdata(ips_array): + ips = "" + for ip in ips_array: + ips = ("%s %s" % (ips, ip)) + + ips = ips.replace(' ', ' ') + return ("#!/bin/sh\n" + "set%s\n" + "while true; do\n" + " for i do\n" + " ip=$i\n" + " ping -c 1 $ip 2>&1 >/dev/null\n" + " RES=$?\n" + " if [ \"Z$RES\" = \"Z0\" ] ; then\n" + " echo ping $ip OK\n" + " else echo ping $ip KO\n" + " fi\n" + " done\n" + " sleep 1\n" + "done\n" + % ips) + + +def generate_userdata_common(): + return ("#!/bin/sh\n" + "sudo mkdir -p /home/cirros/.ssh/\n" + "sudo chown cirros:cirros /home/cirros/.ssh/\n" + "sudo chown cirros:cirros /home/cirros/id_rsa\n" + "mv /home/cirros/id_rsa /home/cirros/.ssh/\n" + "sudo echo ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAAgnWtSS98Am516e" + "stBsq0jbyOB4eLMUYDdgzsUHsnxFQCtACwwAg9/2uq3FoGUBUWeHZNsT6jcK9" + "sCMEYiS479CUCzbrxcd8XaIlK38HECcDVglgBNwNzX/WDfMejXpKzZG61s98rU" + "ElNvZ0YDqhaqZGqxIV4ejalqLjYrQkoly3R+2k= " + "cirros@test1>/home/cirros/.ssh/authorized_keys\n" + "sudo chown cirros:cirros /home/cirros/.ssh/authorized_keys\n" + "chmod 700 /home/cirros/.ssh\n" + "chmod 644 /home/cirros/.ssh/authorized_keys\n" + "chmod 600 /home/cirros/.ssh/id_rsa\n" + ) + + +def generate_userdata_with_ssh(ips_array): + u1 = generate_userdata_common() + + ips = "" + for ip in ips_array: + ips = ("%s %s" % (ips, ip)) + + ips = ips.replace(' ', ' ') + u2 = ("#!/bin/sh\n" + "set%s\n" + "while true; do\n" + " for i do\n" + " ip=$i\n" + " hostname=$(ssh -y -i /home/cirros/.ssh/id_rsa " + "cirros@$ip 'hostname' </dev/zero 2>/dev/null)\n" + " RES=$?\n" + " if [ \"Z$RES\" = \"Z0\" ]; then echo $ip $hostname;\n" + " else echo $ip 'not reachable';fi;\n" + " done\n" + " sleep 1\n" + "done\n" + % ips) + return (u1 + u2) + + +def wait_for_instance(instance): + logger.info("Waiting for instance %s to get a DHCP lease..." % instance.id) + # The sleep this function replaced waited for 80s + tries = 40 + sleep_time = 2 + pattern = "Lease of .* obtained, lease time" + expected_regex = re.compile(pattern) + console_log = "" + while tries > 0 and not expected_regex.search(console_log): + console_log = instance.get_console_output() + time.sleep(sleep_time) + tries -= 1 + + if not expected_regex.search(console_log): + logger.error("Instance %s seems to have failed leasing an IP." + % instance.id) + return False + return True + + +def wait_for_instances_up(*args): + check = [wait_for_instance(instance) for instance in args] + return all(check) + + +def wait_for_bgp_net_assoc(neutron_client, bgpvpn_id, net_id): + tries = 30 + sleep_time = 1 + nets = [] + logger.debug("Waiting for network %s to associate with BGPVPN %s " + % (bgpvpn_id, net_id)) + + while tries > 0 and net_id not in nets: + nets = os_utils.get_bgpvpn_networks(neutron_client, bgpvpn_id) + time.sleep(sleep_time) + tries -= 1 + if net_id not in nets: + logger.error("Association of network %s with BGPVPN %s failed" % + (net_id, bgpvpn_id)) + return False + return True + + +def wait_for_bgp_net_assocs(neutron_client, bgpvpn_id, *args): + check = [wait_for_bgp_net_assoc(neutron_client, bgpvpn_id, id) + for id in args] + # Return True if all associations succeeded + return all(check) + + +def wait_for_bgp_router_assoc(neutron_client, bgpvpn_id, router_id): + tries = 30 + sleep_time = 1 + routers = [] + logger.debug("Waiting for router %s to associate with BGPVPN %s " + % (bgpvpn_id, router_id)) + while tries > 0 and router_id not in routers: + routers = os_utils.get_bgpvpn_routers(neutron_client, bgpvpn_id) + time.sleep(sleep_time) + tries -= 1 + if router_id not in routers: + logger.error("Association of router %s with BGPVPN %s failed" % + (router_id, bgpvpn_id)) + return False + return True + + +def wait_for_bgp_router_assocs(neutron_client, bgpvpn_id, *args): + check = [wait_for_bgp_router_assoc(neutron_client, bgpvpn_id, id) + for id in args] + # Return True if all associations succeeded + return all(check) + + +def wait_before_subtest(*args, **kwargs): + ''' This is a placeholder. + TODO: Replace delay with polling logic. ''' + time.sleep(30) + + +def assert_and_get_compute_nodes(nova_client, required_node_number=2): + """Get the compute nodes in the deployment + + Exit if the deployment doesn't have enough compute nodes""" + compute_nodes = os_utils.get_hypervisors(nova_client) + + num_compute_nodes = len(compute_nodes) + if num_compute_nodes < 2: + logger.error("There are %s compute nodes in the deployment. " + "Minimum number of nodes to complete the test is 2." + % num_compute_nodes) + sys.exit(-1) + + logger.debug("Compute nodes: %s" % compute_nodes) + return compute_nodes + + +def open_icmp_ssh(neutron_client, security_group_id): + os_utils.create_secgroup_rule(neutron_client, + security_group_id, + 'ingress', + 'icmp') + os_utils.create_secgroup_rule(neutron_client, + security_group_id, + 'tcp', + 80, 80) |