neutron/tests/tempest/scenario/base.py

# Copyright 2016 Red Hat, Inc.
# 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.

from oslo_log import log

from tempest.common import waiters
from tempest.lib.common import ssh
from tempest.lib.common.utils import data_utils

from neutron.tests.tempest.api import base as base_api
from neutron.tests.tempest import config
from neutron.tests.tempest.scenario import constants

CONF = config.CONF

LOG = log.getLogger(__name__)


class BaseTempestTestCase(base_api.BaseNetworkTest):
    @classmethod
    def resource_setup(cls):
        super(BaseTempestTestCase, cls).resource_setup()

        cls.servers = []
        cls.keypairs = []

    @classmethod
    def resource_cleanup(cls):
        for server in cls.servers:
            cls.manager.servers_client.delete_server(server)
            waiters.wait_for_server_termination(cls.manager.servers_client,
                                                server)

        for keypair in cls.keypairs:
            cls.manager.keypairs_client.delete_keypair(
                keypair_name=keypair['name'])

        super(BaseTempestTestCase, cls).resource_cleanup()

    @classmethod
    def create_server(cls, flavor_ref, image_ref, key_name, networks,
                      name=None, security_groups=None):
        """Create a server using tempest lib
        All the parameters are the ones used in Compute API

        Args:
           flavor_ref(str): The flavor of the server to be provisioned.
           image_ref(str):  The image of the server to be provisioned.
           key_name(str): SSH key to to be used to connect to the
                            provisioned server.
           networks(list): List of dictionaries where each represent
               an interface to be attached to the server. For network
               it should be {'uuid': network_uuid} and for port it should
               be {'port': port_uuid}
           name(str): Name of the server to be provisioned.
           security_groups(list): List of dictionaries where
                the keys is 'name' and the value is the name of
                the security group. If it's not passed the default
                security group will be used.
        """

        name = name or data_utils.rand_name('server-test')
        if not security_groups:
            security_groups = [{'name': 'default'}]

        server = cls.manager.servers_client.create_server(
            name=name,
            flavorRef=flavor_ref,
            imageRef=image_ref,
            key_name=key_name,
            networks=networks,
            security_groups=security_groups)
        cls.servers.append(server['server']['id'])
        return server

    @classmethod
    def create_keypair(cls, client=None):
        client = client or cls.manager.keypairs_client
        name = data_utils.rand_name('keypair-test')
        body = client.create_keypair(name=name)
        cls.keypairs.append(body['keypair'])
        return body['keypair']

    @classmethod
    def create_secgroup_rules(cls, rule_list, secgroup_id=None):
        client = cls.manager.network_client
        if not secgroup_id:
            sgs = client.list_security_groups()['security_groups']
            for sg in sgs:
                if sg['name'] == constants.DEFAULT_SECURITY_GROUP:
                    secgroup_id = sg['id']
                    break

        for rule in rule_list:
            direction = rule.pop('direction')
            client.create_security_group_rule(
                direction=direction,
                security_group_id=secgroup_id,
                **rule)

    @classmethod
    def create_loginable_secgroup_rule(cls, secgroup_id=None):
        """This rule is intended to permit inbound ssh

        Allowing ssh traffic traffic from all sources, so no group_id is
        provided.
        Setting a group_id would only permit traffic from ports
        belonging to the same security group.
        """

        rule_list = [{'protocol': 'tcp',
                      'direction': 'ingress',
                      'port_range_min': 22,
                      'port_range_max': 22,
                      'remote_ip_prefix': '0.0.0.0/0'}]
        cls.create_secgroup_rules(rule_list, secgroup_id=secgroup_id)

    @classmethod
    def create_router_and_interface(cls, subnet_id):
        router = cls.create_router(
            data_utils.rand_name('router'), admin_state_up=True,
            external_network_id=CONF.network.public_network_id)
        LOG.debug("Created router %s", router['name'])
        cls.create_router_interface(router['id'], subnet_id)
        cls.routers.append(router)
        return router

    @classmethod
    def create_and_associate_floatingip(cls, port_id):
        fip = cls.manager.network_client.create_floatingip(
            CONF.network.public_network_id,
            port_id=port_id)['floatingip']
        cls.floating_ips.append(fip)
        return fip

    @classmethod
    def check_connectivity(cls, host, ssh_user, ssh_key=None):
        ssh_client = ssh.Client(host, ssh_user, pkey=ssh_key)
        ssh_client.test_connection_auth()

    @classmethod
    def setup_network_and_server(cls):
        """Creating network resources and a server.

        Creating a network, subnet, router, keypair, security group
        and a server.
        """
        cls.network = cls.create_network()
        LOG.debug("Created network %s", cls.network['name'])
        cls.subnet = cls.create_subnet(cls.network)
        LOG.debug("Created subnet %s", cls.subnet['id'])

        secgroup = cls.manager.network_client.create_security_group(
            name=data_utils.rand_name('secgroup-'))
        LOG.debug("Created security group %s",
                  secgroup['security_group']['name'])
        cls.security_groups.append(secgroup['security_group'])

        cls.create_router_and_interface(cls.subnet['id'])
        cls.keypair = cls.create_keypair()
        cls.create_loginable_secgroup_rule(
            secgroup_id=secgroup['security_group']['id'])
        cls.server = cls.create_server(
            flavor_ref=CONF.compute.flavor_ref,
            image_ref=CONF.compute.image_ref,
            key_name=cls.keypair['name'],
            networks=[{'uuid': cls.network['id']}],
            security_groups=[{'name': secgroup['security_group']['name']}])
        waiters.wait_for_server_status(cls.manager.servers_client,
                                       cls.server['server']['id'],
                                       constants.SERVER_STATUS_ACTIVE)
        port = cls.client.list_ports(network_id=cls.network['id'],
                                     device_id=cls.server[
                                          'server']['id'])['ports'][0]
        cls.fip = cls.create_and_associate_floatingip(port['id'])