Server Migration Dynamic workload
This patch introduces a dynamic workload which creates num_vms servers with floating IPs, and migrates num_migrate_vms servers between computes. It also adds a parameter in browbeat-config.yaml to specify the dynamic workloads which the user wants to run in a given iteration. Change-Id: Ib7eff2e12c6d256ecd1f36ad30f1b19841cb1549
This commit is contained in:
Sanjay Chari
parent
b163dcccd0
commit
f55cd6c8eb
@ -535,11 +535,15 @@ workloads:
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- 1
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times: 1
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scenarios:
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- name: dynamic-workload-1
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- name: dynamic-workload
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enabled: true
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enable_dhcp: true
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image_name: cirros
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flavor_name: m1.small
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ext_net_id:
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num_vms: 10
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num_migrate_vms: 5
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# workloads can be 'all', a single workload(Eg. : create_delete_servers),
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# or a comma separated string(Eg. : create_delete_servers,migrate_servers).
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# Currently supported workloads : create_delete_servers, migrate_servers
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workloads: all
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file: rally/rally-plugins/dynamic-workloads/dynamic_workload.yml
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@ -3,4 +3,8 @@ Browbeat Rally Plugin: dynamic-workloads
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Functions:
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----------
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- create_delete_servers: Create 'N' VMs and delete 'N/2' VMs during test.
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- create_delete_servers: Create 'N' VMs and delete 'N/2' VMs.
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- server_boot_floatingip: Create 'N' VMs with floating IPs.
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- _create_router: Create neutron router.
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- get_servers_migration_list: Generate list of servers to migrate between computes.
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- migrate_servers_with_fip: Migrate servers between computes
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@ -11,8 +11,10 @@
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# limitations under the License.
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import logging
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import random
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from rally_openstack.scenarios.neutron import utils as neutron_utils
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from rally_openstack.scenarios.vm import utils as vm_utils
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from rally.task import atomic
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LOG = logging.getLogger(__name__)
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@ -20,7 +22,7 @@ LOG = logging.getLogger(__name__)
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class DynamicBase(vm_utils.VMScenario, neutron_utils.NeutronScenario):
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def create_delete_servers(self, image, flavor, num_vms=1, min_sleep=0, max_sleep=10,
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network_create_args=None, subnet_create_args=None):
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"""Creates <num_vms> servers and deletes <num_vms//2> servers.
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"""Create <num_vms> servers and delete <num_vms//2> servers.
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:param image: image ID or instance for server creation
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:param flavor: int, flavor ID or instance for server creation
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@ -35,7 +37,6 @@ class DynamicBase(vm_utils.VMScenario, neutron_utils.NeutronScenario):
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kwargs = {}
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kwargs["nics"] = [{"net-id": network["network"]["id"]}]
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servers = []
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for i in range(num_vms):
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server = self._boot_server(image, flavor, **kwargs)
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LOG.info("Created server {} when i = {}".format(server,i))
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@ -47,3 +48,101 @@ class DynamicBase(vm_utils.VMScenario, neutron_utils.NeutronScenario):
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self._delete_server(server_to_delete, force=True)
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LOG.info("Deleted server {} when i = {}".format(server_to_delete,i))
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servers.pop(0)
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def server_boot_floatingip(self, image, flavor, ext_net_id, num_vms=1, router_create_args=None,
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network_create_args=None, subnet_create_args=None, **kwargs):
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"""Create <num_vms> servers with floating IPs
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:param image: image ID or instance for server creation
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:param flavor: int, flavor ID or instance for server creation
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:param ext_net_id: external network ID for floating IP creation
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:param num_vms: int, number of servers to create
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:param router_create_args: dict, arguments for router creation
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:param network_create_args: dict, arguments for network creation
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:param subnet_create_args: dict, arguments for subnet creation
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:param kwargs: dict, Keyword arguments to function
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"""
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ext_net_name = None
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if ext_net_id:
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ext_net_name = self.clients("neutron").show_network(ext_net_id)["network"][
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"name"
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]
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router_create_args["name"] = self.generate_random_name()
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router_create_args["tenant_id"] = self.context["tenant"]["id"]
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router_create_args.setdefault(
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"external_gateway_info", {"network_id": ext_net_id, "enable_snat": True}
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)
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router = self._create_router(router_create_args)
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network = self._create_network(network_create_args or {})
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subnet = self._create_subnet(network, subnet_create_args or {})
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self._add_interface_router(subnet["subnet"], router["router"])
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for i in range(num_vms):
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kwargs["nics"] = [{"net-id": network["network"]["id"]}]
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guest = self._boot_server_with_fip(
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image, flavor, True, ext_net_name, **kwargs
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)
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self._wait_for_ping(guest[1]["ip"])
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@atomic.action_timer("neutron.create_router")
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def _create_router(self, router_create_args):
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"""Create neutron router.
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:param router_create_args: POST /v2.0/routers request options
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:returns: neutron router dict
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"""
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return self.admin_clients("neutron").create_router(
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{"router": router_create_args}
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)
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def get_servers_migration_list(self, num_migrate_vms):
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"""Generate list of servers to migrate between computes
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:param num_migrate_vms: int, number of servers to migrate between computes
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:returns: list of server objects to migrate between computes
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"""
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servers = self._list_servers(True)
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trunks = self._list_trunks()
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eligible_servers = []
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for server in servers:
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has_floating_ip = False
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is_not_trunk_network_server = True
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for network, addr_list in server.addresses.items():
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if len(addr_list) > 1:
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has_floating_ip = True
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for interface in self._list_interfaces(server):
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for trunk in trunks:
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if interface._info['port_id'] == trunk['port_id']:
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is_not_trunk_network_server = False
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break
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if not(is_not_trunk_network_server):
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break
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if has_floating_ip and is_not_trunk_network_server:
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eligible_servers.append(server)
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random.shuffle(eligible_servers)
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num_servers_to_migrate = min(num_migrate_vms, len(eligible_servers))
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list_of_servers_to_migrate = []
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for i in range(num_servers_to_migrate):
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list_of_servers_to_migrate.append(eligible_servers[i])
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return list_of_servers_to_migrate
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def migrate_servers_with_fip(self, num_migrate_vms):
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"""Migrate servers between computes
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:param num_migrate_vms: int, number of servers to migrate between computes
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"""
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for server in self.get_servers_migration_list(num_migrate_vms):
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fip = list(server.addresses.values())[0][1]['addr']
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LOG.info("ping {} before server migration".format(fip))
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self._wait_for_ping(fip)
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self._migrate(server)
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self._resize_confirm(server, status="ACTIVE")
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LOG.info("ping {} after server migration".format(fip))
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self._wait_for_ping(fip)
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@ -24,10 +24,26 @@ import base
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)
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@validation.add("required_platform", platform="openstack", users=True)
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@scenario.configure(
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context={"cleanup@openstack": ["neutron", "nova"]},
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context={
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"cleanup@openstack": ["neutron", "nova"],
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"keypair@openstack": {},
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"allow_ssh@openstack": None,
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},
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name="BrowbeatPlugin.dynamic_workload",
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platform="openstack",
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)
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class DynamicWorkload(base.DynamicBase):
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def run(self, image, flavor, num_vms, subnet_create_args, **kwargs):
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self.create_delete_servers(image, flavor, num_vms, subnet_create_args=subnet_create_args)
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def run(self, image, flavor, ext_net_id, num_migrate_vms, num_vms=1, workloads="all",
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router_create_args=None, network_create_args=None, subnet_create_args=None, **kwargs):
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if workloads != "all":
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workloads_list = workloads.split(",")
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if workloads == "all" or "create_delete_servers" in workloads_list:
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self.create_delete_servers(image, flavor, num_vms,
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subnet_create_args=subnet_create_args)
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if workloads == "all" or "migrate_servers" in workloads_list:
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self.server_boot_floatingip(image, flavor, ext_net_id, num_vms, router_create_args,
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network_create_args, subnet_create_args, **kwargs)
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self.migrate_servers_with_fip(num_migrate_vms)
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@ -1,25 +1,31 @@
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{% set image_name = image_name or 'cirros' %}
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{% set flavor_name = flavor_name or 'm1.xtiny' %}
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{% set enable_dhcp = enable_dhcp or true %}
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{% set num_vms = num_vms or 1 %}
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{% set num_migrate_vms = num_migrate_vms or 1 %}
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{% set workloads = workloads or 'all' %}
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{% set sla_max_avg_duration = sla_max_avg_duration or 60 %}
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{% set sla_max_failure = sla_max_failure or 0 %}
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{% set sla_max_seconds = sla_max_seconds or 60 %}
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---
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BrowbeatPlugin.dynamic_workload:
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-
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-
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args:
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floating: True
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flavor:
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name: '{{flavor_name}}'
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image:
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name: '{{image_name}}'
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network_create_args: {}
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subnet_create_args: {'enable_dhcp': '{{enable_dhcp}}'}
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router_create_args: {}
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subnet_create_args: {}
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num_vms: {{num_vms}}
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num_migrate_vms: {{num_migrate_vms}}
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ext_net_id: '{{ext_net_id}}'
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workloads: '{{workloads}}'
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runner:
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concurrency: {{concurrency}}
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times: {{times}}
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type: 'constant'
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type: "constant"
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context:
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users:
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tenants: 1
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@ -30,6 +36,7 @@ BrowbeatPlugin.dynamic_workload:
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port: -1
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router: -1
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subnet: -1
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floatingip: -1
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nova:
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instances: -1
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cores: -1
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