cloudstack/test/integration/component/test_vpc_redundant.py

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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
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#
#   http://www.apache.org/licenses/LICENSE-2.0
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# specific language governing permissions and limitations
# under the License.

""" Test redundancy features for VPC routers
"""

from nose.plugins.attrib import attr
from marvin.cloudstackTestCase import cloudstackTestCase
from marvin.lib.base import (stopRouter,
                             startRouter,
                             Account,
                             VpcOffering,
                             VPC,
                             ServiceOffering,
                             NATRule,
                             NetworkACL,
                             PublicIPAddress,
                             NetworkOffering,
                             Network,
                             VirtualMachine,
                             LoadBalancerRule)
from marvin.lib.common import (get_domain,
                               get_zone,
                               get_template,
                               list_routers)
from marvin.lib.utils import cleanup_resources
import socket
import time
import inspect


class Services:
    """Test VPC network services - Port Forwarding Rules Test Data Class.
    """

    def __init__(self):
        self.services = {
            "account": {
                "email": "test@test.com",
                "firstname": "Test",
                "lastname": "User",
                "username": "test",
                # Random characters are appended for unique
                # username
                "password": "password",
            },
            "host1": None,
            "host2": None,
            "service_offering": {
                "name": "Tiny Instance",
                "displaytext": "Tiny Instance",
                "cpunumber": 1,
                "cpuspeed": 100,
                "memory": 128,
            },
            "network_offering": {
                "name": 'VPC Network offering',
                "displaytext": 'VPC Network off',
                "guestiptype": 'Isolated',
                "supportedservices": 'Vpn,Dhcp,Dns,SourceNat,PortForwarding,Lb,UserData,StaticNat,NetworkACL',
                "traffictype": 'GUEST',
                "availability": 'Optional',
                "useVpc": 'on',
                "serviceProviderList": {
                    "Vpn": 'VpcVirtualRouter',
                    "Dhcp": 'VpcVirtualRouter',
                    "Dns": 'VpcVirtualRouter',
                    "SourceNat": 'VpcVirtualRouter',
                    "PortForwarding": 'VpcVirtualRouter',
                    "Lb": 'VpcVirtualRouter',
                    "UserData": 'VpcVirtualRouter',
                    "StaticNat": 'VpcVirtualRouter',
                    "NetworkACL": 'VpcVirtualRouter'
                },
            },
            "network_offering_no_lb": {
                "name": 'VPC Network offering',
                "displaytext": 'VPC Network off',
                "guestiptype": 'Isolated',
                "supportedservices": 'Dhcp,Dns,SourceNat,PortForwarding,UserData,StaticNat,NetworkACL',
                "traffictype": 'GUEST',
                "availability": 'Optional',
                "useVpc": 'on',
                "serviceProviderList": {
                    "Dhcp": 'VpcVirtualRouter',
                    "Dns": 'VpcVirtualRouter',
                    "SourceNat": 'VpcVirtualRouter',
                    "PortForwarding": 'VpcVirtualRouter',
                    "UserData": 'VpcVirtualRouter',
                    "StaticNat": 'VpcVirtualRouter',
                    "NetworkACL": 'VpcVirtualRouter'
                },
            },
            "vpc_offering": {
                "name": 'Redundant VPC off',
                "displaytext": 'Redundant VPC off',
                "supportedservices": 'Dhcp,Dns,SourceNat,PortForwarding,Vpn,Lb,UserData,StaticNat',
                "serviceProviderList": {
                    "Vpn": 'VpcVirtualRouter',
                    "Dhcp": 'VpcVirtualRouter',
                    "Dns": 'VpcVirtualRouter',
                    "SourceNat": 'VpcVirtualRouter',
                    "PortForwarding": 'VpcVirtualRouter',
                    "Lb": 'VpcVirtualRouter',
                    "UserData": 'VpcVirtualRouter',
                    "StaticNat": 'VpcVirtualRouter',
                    "NetworkACL": 'VpcVirtualRouter'
                },
                "serviceCapabilityList": {
                    "SourceNat": {
                        "RedundantRouter": 'true'
                    }
                },
            },
            "vpc": {
                "name": "TestVPC",
                "displaytext": "TestVPC",
                "cidr": '10.0.0.1/24'
            },
            "network": {
                "name": "Test Network",
                "displaytext": "Test Network",
                "netmask": '255.255.255.0'
            },
            "lbrule": {
                "name": "SSH",
                "alg": "leastconn",
                # Algorithm used for load balancing
                "privateport": 22,
                "publicport": 2222,
                "openfirewall": False,
                "startport": 22,
                "endport": 2222,
                "protocol": "TCP",
                "cidrlist": '0.0.0.0/0',
            },
            "lbrule_http": {
                "name": "HTTP",
                "alg": "leastconn",
                # Algorithm used for load balancing
                "privateport": 80,
                "publicport": 8888,
                "openfirewall": False,
                "startport": 80,
                "endport": 8888,
                "protocol": "TCP",
                "cidrlist": '0.0.0.0/0',
            },
            "natrule": {
                "privateport": 22,
                "publicport": 22,
                "startport": 22,
                "endport": 22,
                "protocol": "TCP",
                "cidrlist": '0.0.0.0/0',
            },
            "http_rule": {
                "privateport": 80,
                "publicport": 80,
                "startport": 80,
                "endport": 80,
                "cidrlist": '0.0.0.0/0',
                "protocol": "TCP"
            },
            "virtual_machine": {
                "displayname": "Test VM",
                "username": "root",
                "password": "password",
                "ssh_port": 22,
                "privateport": 22,
                "publicport": 22,
                "protocol": 'TCP',
            },
            "ostype": 'CentOS 5.3 (64-bit)',
            "timeout": 10,
        }


class TestVPCRedundancy(cloudstackTestCase):

    @classmethod
    def setUpClass(cls):
        # We want to fail quicker if it's failure
        socket.setdefaulttimeout(60)

        cls.testClient = super(TestVPCRedundancy, cls).getClsTestClient()
        cls.api_client = cls.testClient.getApiClient()

        cls.services = Services().services
        # Get Zone, Domain and templates
        cls.domain = get_domain(cls.api_client)
        cls.zone = get_zone(cls.api_client, cls.testClient.getZoneForTests())
        cls.template = get_template(
            cls.api_client,
            cls.zone.id,
            cls.services["ostype"])
        cls.services["virtual_machine"]["zoneid"] = cls.zone.id
        cls.services["virtual_machine"]["template"] = cls.template.id

        cls.service_offering = ServiceOffering.create(
            cls.api_client,
            cls.services["service_offering"])
        cls._cleanup = [cls.service_offering]
        return

    @classmethod
    def tearDownClass(cls):
        try:
            cleanup_resources(cls.api_client, cls._cleanup)
        except Exception as e:
            raise Exception("Warning: Exception during cleanup : %s" % e)
        return

    def setUp(self):
        self.routers = []
        self.networks = []
        self.ips = []
        self.apiclient = self.testClient.getApiClient()
        self.account = Account.create(
            self.apiclient,
            self.services["account"],
            admin=True,
            domainid=self.domain.id)

        self.cleanup = [self.account]
        self.debug("Creating a VPC offering..")
        self.vpc_off = VpcOffering.create(
            self.apiclient,
            self.services["vpc_offering"])

        self.debug("Enabling the VPC offering created")
        self.vpc_off.update(self.apiclient, state='Enabled')

        self.debug("Creating a VPC network in the account: %s" % self.account.name)
        self.services["vpc"]["cidr"] = '10.1.1.1/16'
        self.vpc = VPC.create(
            self.apiclient,
            self.services["vpc"],
            vpcofferingid=self.vpc_off.id,
            zoneid=self.zone.id,
            account=self.account.name,
            domainid=self.account.domainid)
        return

    def tearDown(self):
        try:
            cleanup_resources(self.apiclient, self.cleanup)
        except Exception as e:
            self.debug("Warning: Exception during cleanup : %s" % e)
        return

    def query_routers(self, count=2, showall=False):
        self.routers = list_routers(self.apiclient,
                                    account=self.account.name,
                                    domainid=self.account.domainid,
                                    )
        if not showall:
            self.routers = [r for r in self.routers if r.state != "Stopped"]
        self.assertEqual(
            isinstance(self.routers, list), True,
            "Check for list routers response return valid data")

        self.assertEqual(
            len(self.routers), count,
            "Check that %s routers were indeed created" % count)

    def check_master_status(self, count=2, showall=False):
        vals = ["MASTER", "BACKUP", "UNKNOWN"]
        cnts = [0, 0, 0]
        self.query_routers(count, showall)
        for router in self.routers:
            cnts[vals.index(router.redundantstate)] += 1
        if cnts[vals.index('MASTER')] != 1:
            self.fail("No Master or too many master routers found %s" % cnts[vals.index('MASTER')])
        # if cnts[vals.index('UNKNOWN')] > 0:
            # self.fail("Router has unknown status")

    def stop_router(self, type):
        self.check_master_status(2)
        self.debug('Stopping %s router' % type)
        for router in self.routers:
            if router.redundantstate == type:
                cmd = stopRouter.stopRouterCmd()
                cmd.id = router.id
                self.apiclient.stopRouter(cmd)

    def start_router(self):
        self.check_master_status(2, showall=True)
        self.debug('Starting stopped routers')
        for router in self.routers:
            self.debug('Router %s has state %s' % (router.id, router.state))
            if router.state == "Stopped":
                self.debug('Starting stopped router %s' % router.id)
                cmd = startRouter.startRouterCmd()
                cmd.id = router.id
                self.apiclient.startRouter(cmd)

    def create_network(self, net_offerring, gateway='10.1.1.1', vpc=None):
        try:
            self.debug('Create NetworkOffering')
            net_offerring["name"] = "NET_OFF-" + str(gateway)
            nw_off = NetworkOffering.create(
                self.apiclient,
                net_offerring,
                conservemode=False)

            nw_off.update(self.apiclient, state='Enabled')
            self._cleanup.append(nw_off)
            self.debug('Created and Enabled NetworkOffering')

            self.services["network"]["name"] = "NETWORK-" + str(gateway)
            self.debug('Adding Network=%s' % self.services["network"])
            obj_network = Network.create(
                self.apiclient,
                self.services["network"],
                accountid=self.account.name,
                domainid=self.account.domainid,
                networkofferingid=nw_off.id,
                zoneid=self.zone.id,
                gateway=gateway,
                vpcid=vpc.id if vpc else self.vpc.id
            )
            self.debug("Created network with ID: %s" % obj_network.id)
        except Exception, e:
            self.fail('Unable to create a Network with offering=%s because of %s ' % (net_offerring, e))
        o = networkO(obj_network)
        o.add_vm(self.deployvm_in_network(obj_network))
        o.add_vm(self.deployvm_in_network(obj_network))
        return o

    def deployvm_in_network(self, network, host_id=None):
        try:
            self.debug('Creating VM in network=%s' % network.name)
            vm = VirtualMachine.create(
                self.apiclient,
                self.services["virtual_machine"],
                accountid=self.account.name,
                domainid=self.account.domainid,
                serviceofferingid=self.service_offering.id,
                networkids=[str(network.id)],
                hostid=host_id
            )
            self.debug('Created VM=%s in network=%s' % (vm.id, network.name))
            return vm
        except:
            self.fail('Unable to create VM in a Network=%s' % network.name)

    def acquire_publicip(self, network):
        self.debug("Associating public IP for network: %s" % network.name)
        public_ip = PublicIPAddress.create(
            self.apiclient,
            accountid=self.account.name,
            zoneid=self.zone.id,
            domainid=self.account.domainid,
            networkid=network.id,
            vpcid=self.vpc.id
        )
        self.debug("Associated %s with network %s" % (
            public_ip.ipaddress.ipaddress,
            network.id
        ))
        return public_ip

    def create_natrule(self, vm, public_ip, network, services=None):
        self.debug("Creating NAT rule in network for vm with public IP")
        if not services:
            services = self.services["natrule"]
        nat_rule = NATRule.create(
            self.apiclient,
            vm,
            services,
            ipaddressid=public_ip.ipaddress.id,
            openfirewall=False,
            networkid=network.id,
            vpcid=self.vpc.id)

        self.debug("Adding NetworkACL rules to make NAT rule accessible")
        nwacl_nat = NetworkACL.create(
            self.apiclient,
            networkid=network.id,
            services=services,
            traffictype='Ingress'
        )
        self.debug('nwacl_nat=%s' % nwacl_nat.__dict__)
        return nat_rule

    def check_ssh_into_vm(self, vm, public_ip, expectFail=False, retries=20):
        self.debug("Checking if we can SSH into VM=%s on public_ip=%s (%r)" %
                   (vm.name, public_ip.ipaddress.ipaddress, expectFail))
        vm.ssh_client = None
        try:
            if 'retries' in inspect.getargspec(vm.get_ssh_client).args:
                vm.get_ssh_client(ipaddress=public_ip.ipaddress.ipaddress, retries=retries)
            else:
                vm.get_ssh_client(ipaddress=public_ip.ipaddress.ipaddress)
            if expectFail:
                self.fail("SSH into VM=%s on public_ip=%s is successful (Not Expected)" %
                          (vm.name, public_ip.ipaddress.ipaddress))
            else:
                self.debug("SSH into VM=%s on public_ip=%s is successful" %
                           (vm.name, public_ip.ipaddress.ipaddress))
        except:
            if expectFail:
                self.debug("Failed to SSH into VM - %s (Expected)" % (public_ip.ipaddress.ipaddress))
            else:
                self.fail("Failed to SSH into VM - %s" % (public_ip.ipaddress.ipaddress))

    @attr(tags=["advanced", "intervlan"], required_hardware="true")
    def test_01a_create_redundant_VPC(self):
        """ Create a redundant vpc with two networks with two vms in each network """
        self.debug("Starting est 1a")
        self.query_routers()
        self.networks.append(self.create_network(self.services["network_offering"], "10.1.1.1"))
        self.networks.append(self.create_network(self.services["network_offering_no_lb"], "10.1.2.1"))
        self.check_master_status(2)
        self.add_nat_rules()
        self.do_vpc_test(False)

        self.stop_router("MASTER")
        time.sleep(30)
        self.check_master_status(1)
        self.do_vpc_test(False)

        self.delete_nat_rules()
        self.check_master_status(1)
        self.do_vpc_test(True)

        self.start_router()
        self.add_nat_rules()
        time.sleep(60)
        self.check_master_status(2)
        self.do_vpc_test(False)

    def delete_nat_rules(self):
        for o in self.networks:
            for vm in o.get_vms():
                if vm.get_nat() is not None:
                    vm.get_nat().delete(self.apiclient)
                    vm.set_nat(None)

    def add_nat_rules(self):
        for o in self.networks:
            for vm in o.get_vms():
                if vm.get_ip() is None:
                    vm.set_ip(self.acquire_publicip(o.get_net()))
                if vm.get_nat() is None:
                    vm.set_nat(self.create_natrule(vm.get_vm(), vm.get_ip(), o.get_net()))

    def do_vpc_test(self, expectFail):
        retries = 20
        if expectFail:
            retries = 2
        for o in self.networks:
            for vm in o.get_vms():
                self.check_ssh_into_vm(vm.get_vm(), vm.get_ip(), expectFail=expectFail, retries=retries)


class networkO(object):
    def __init__(self, net):
        self.network = net
        self.vms = []

    def get_net(self):
        return self.network

    def add_vm(self, vm):
        self.vms.append(vmsO(vm))

    def get_vms(self):
        return self.vms


class vmsO(object):
    def __init__(self, vm):
        self.vm = vm
        self.ip = None
        self.nat = None

    def get_vm(self):
        return self.vm

    def get_ip(self):
        return self.ip

    def get_nat(self):
        return self.nat

    def set_ip(self, ip):
        self.ip = ip

    def set_nat(self, nat):
        self.nat = nat