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Trunk Dynamic Workloads: Reduce ssh connections 

This patch reduces ssh connections in trunk dynamic workloads,
by making one workload use only one ssh connection, that is
created during the execution of the workload.

Change-Id: I9aaf0ec5406d77f7c706f462997b1fecf067ef5f
This commit is contained in:
Sanjay Chari 2022-02-09 16:42:12 +05:30
parent 013297f03c
commit fb4880c794
1 changed files with 22 additions and 22 deletions
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44
rally/rally-plugins/dynamic-workloads/trunk.py
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@ -41,39 +41,34 @@ class TrunkDynamicScenario(
dynamic_utils.NeutronUtils,
dynamic_utils.LockUtils
):
def add_route_from_vm_to_jumphost(self, local_vm, dest_vm, local_vm_user,
def add_route_from_vm_to_jumphost(self, local_vm_ssh, dest_vm,
subport_number, gateway):
"""Add route from trunk vm to jumphost via trunk subport
:param local_vm: floating ip of local VM
:param local_vm_ssh: ssh connection to trunk VM
:param dest_vm: floating ip of destination VM
:param local_vm_user: str, ssh user for local VM
:param subport_number: int, trunk subport on which route is created
:param gateway: network gateway
"""
script = f"sudo ip r a {dest_vm} via {gateway} dev eth0.{subport_number}"
source_ssh = self.get_ssh(local_vm_user, local_vm)
self._run_command_with_attempts(source_ssh, script)
source_ssh.close()
self._run_command_with_attempts(local_vm_ssh, script)
def delete_route_from_vm_to_jumphost(self, local_vm, dest_vm, local_vm_user,
def delete_route_from_vm_to_jumphost(self, local_vm_ssh, dest_vm,
subport_number, gateway):
"""Delete route from trunk vm to jumphost via trunk subport
:param local_vm: floating ip of local VM
:param local_vm_ssh: ssh connection to trunk VM
:param dest_vm: floating ip of destination VM
:param local_vm_user: str, ssh user for local VM
:param subport_number: int, trunk subport on which route is created
:param gateway: network gateway
"""
script = f"sudo ip r d {dest_vm} via {gateway} dev eth0.{subport_number}"
source_ssh = self.get_ssh(local_vm_user, local_vm)
self._run_command_with_attempts(source_ssh, script)
source_ssh.close()
self._run_command_with_attempts(local_vm_ssh, script)
def simulate_subport_connection(self, trunk_id, vm_fip, jump_fip):
def simulate_subport_connection(self, trunk_id, vm_fip, jump_fip, vm_ssh):
"""Simulate connection from jumphost to random subport of trunk VM
:param trunk_id: id of trunk on which subport is present
:param vm_fip: floating ip of trunk VM
:param jump_fip: floating ip of jumphost
:param vm_ssh: ssh connection to trunk VM
"""
trunk = self.clients("neutron").show_trunk(trunk_id)
trunk_ext_net_id = self.get_ext_net_id_by_trunk(trunk["trunk"])
@ -86,7 +81,7 @@ class TrunkDynamicScenario(
trunk["trunk"]["sub_ports"][subport_number_for_route-1]["port_id"])
subnet_for_route = self.clients("neutron").show_subnet(
subport_for_route["port"]["fixed_ips"][0]["subnet_id"])
self.add_route_from_vm_to_jumphost(vm_fip, jump_fip, self.trunk_vm_user,
self.add_route_from_vm_to_jumphost(vm_ssh, jump_fip,
subport_number_for_route,
subnet_for_route["subnet"]["gateway_ip"])
subport_fip = self._create_floatingip(trunk_ext_net_name)["floatingip"]
@ -101,7 +96,7 @@ class TrunkDynamicScenario(
# as additional subports can be tested for connection in the
# add_subports_random_trunks function, and we would not want the
# existing route created here to be used for those subports.
self.delete_route_from_vm_to_jumphost(vm_fip, jump_fip, self.trunk_vm_user,
self.delete_route_from_vm_to_jumphost(vm_ssh, jump_fip,
subport_number_for_route,
subnet_for_route["subnet"]["gateway_ip"])
# Dissociate and delete floating IP as the same subport can be used
@ -263,7 +258,7 @@ class TrunkDynamicScenario(
self.add_subports_to_trunk_and_vm(subports, trunk["trunk"]["id"], vm_ssh, 1)
self.simulate_subport_connection(trunk["trunk"]["id"], vm_fip, jump_fip)
self.simulate_subport_connection(trunk["trunk"]["id"], vm_fip, jump_fip, vm_ssh)
self.release_lock(trunk["trunk"]["id"])
@ -306,7 +301,7 @@ class TrunkDynamicScenario(
self.add_subports_to_trunk_and_vm(subports, trunk["id"],
vm_ssh, len(trunk["sub_ports"])+1)
self.simulate_subport_connection(trunk["id"], trunk_server_fip, jump_fip)
self.simulate_subport_connection(trunk["id"], trunk_server_fip, jump_fip, vm_ssh)
self.release_lock(trunk["id"])
num_operations_completed += 1
@ -386,7 +381,7 @@ class TrunkDynamicScenario(
# trunk, as the trunk loop variable will have whatever information
# was valid at the beginning of the loop.
if len(self.clients("neutron").show_trunk(trunk["id"])["trunk"]["sub_ports"]) > 0:
self.simulate_subport_connection(trunk["id"], trunk_server_fip, jump_fip)
self.simulate_subport_connection(trunk["id"], trunk_server_fip, jump_fip, vm_ssh)
self.release_lock(trunk["id"])
num_operations_completed += 1
@ -441,7 +436,8 @@ class TrunkDynamicScenario(
trunks_for_swapping[0]["sub_ports"][subport1_number_for_route-1]["port_id"])
subnet1 = self.clients("neutron").show_subnet(
subport1["port"]["fixed_ips"][0]["subnet_id"])
self.add_route_from_vm_to_jumphost(trunk_vm1_fip, jumphost1_fip, self.trunk_vm_user,
trunk_vm1_ssh = self.get_ssh(self.trunk_vm_user, trunk_vm1_fip)
self.add_route_from_vm_to_jumphost(trunk_vm1_ssh, jumphost1_fip,
subport1_number_for_route,
subnet1["subnet"]["gateway_ip"])
@ -451,7 +447,8 @@ class TrunkDynamicScenario(
trunks_for_swapping[1]["sub_ports"][subport2_number_for_route-1]["port_id"])
subnet2 = self.clients("neutron").show_subnet(
subport2["port"]["fixed_ips"][0]["subnet_id"])
self.add_route_from_vm_to_jumphost(trunk_vm2_fip, jumphost2_fip, self.trunk_vm_user,
trunk_vm2_ssh = self.get_ssh(self.trunk_vm_user, trunk_vm2_fip)
self.add_route_from_vm_to_jumphost(trunk_vm2_ssh, jumphost2_fip,
subport2_number_for_route,
subnet2["subnet"]["gateway_ip"])
@ -477,11 +474,11 @@ class TrunkDynamicScenario(
self.assign_ping_fip_from_jumphost(jumphost2_fip, self.jumphost_user, subport1_fip,
subport2["port"]["id"])
self.delete_route_from_vm_to_jumphost(trunk_vm1_fip, jumphost1_fip, self.trunk_vm_user,
self.delete_route_from_vm_to_jumphost(trunk_vm1_ssh, jumphost1_fip,
subport1_number_for_route,
subnet1["subnet"]["gateway_ip"])
self.delete_route_from_vm_to_jumphost(trunk_vm2_fip, jumphost2_fip, self.trunk_vm_user,
self.delete_route_from_vm_to_jumphost(trunk_vm2_ssh, jumphost2_fip,
subport2_number_for_route,
subnet2["subnet"]["gateway_ip"])
@ -490,6 +487,9 @@ class TrunkDynamicScenario(
self.dissociate_and_delete_floating_ip(subport1_fip["id"])
self.dissociate_and_delete_floating_ip(subport2_fip["id"])
trunk_vm1_ssh.close()
trunk_vm2_ssh.close()
# Release lock from trunks
self.release_lock(trunks_for_swapping[0]["id"])
self.release_lock(trunks_for_swapping[1]["id"])