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""" OpenStack migrator - OpenStack library """
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import copy
import inspect
import math
import os.path
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import xmltodict
import openstack
import clib
from lib import log_or_assert, get_dst_resource_name, get_dst_resource_desc, remote_cmd_exec, normalize_table_data, trim_dict, wait_for_ostack_volume_status
def get_destination_network(source_network):
""" LUT for networks """
network_mapping = {
# shared
"78-128-250-pers-proj-net" : "internal-ipv4-general-private",
"147-251-115-pers-proj-net" : "internal-ipv4-general-private",
"public-muni-v6-432" : "external-ipv6-general-public",
# external
"public-muni-147-251-21-GROUP": "external-ipv4-general-public",
"public-cesnet-78-128-250-PERSONAL": "external-ipv4-general-public",
"public-cesnet-78-128-251-GROUP": "external-ipv4-general-public",
"provider-public-cerit-sc-147-251-253": "external-ipv4-general-public",
"public-muni-147-251-115-PERSONAL": "external-ipv4-general-public",
"public-muni-147-251-124-GROUP": "external-ipv4-general-public",
"public-cesnet-195-113-167-GROUP": "external-ipv4-general-public",
"public-muni-147-251-11-128-254": "external-ipv4-general-public",
"public-muni-CERIT-FI-147-251-88-132-254": "external-ipv4-general-public",
"public-muni-CSIRT-MU-217-69-96-64-240": "external-ipv4-general-public",
"public-muni-csirt-147-251-125-16-31": "external-ipv4-general-public",
"provider-public-cerit-sc-147-251-254": "external-ipv4-general-public",
# group project internal network
"group-project-network": "group-project-network"
}
if source_network in network_mapping:
return network_mapping[source_network]
return None
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def get_destination_flavor(source_flavor):
""" LUT for flavors """
flavor_mapping = {
#'eph.16cores-60ram' # nemusime resit neni pouzit u zadneho projektu v g1
#'eph.8cores-30ram': 'c2.8core-30ram' # nemusime resit neni pouzit u zadneho projektu v g1
#'eph.8cores-60ram': 'c3.8core-60ram' # nemusime resit neni pouzit u zadneho projektu v g1
'hdn.cerit.large-35ssd-ephem': 'p3.4core-8ram', # nesedi velikost disku v G2 je 80 misto 35
'hdn.cerit.large-ssd-ephem': 'p3.4core-8ram', # ok
'hdn.cerit.medium-35ssd-ephem': 'p3.2core-4ram', # nesedi velikost disku v G2 je 80 misto 35
'hdn.cerit.xxxlarge-ssd-ephem': 'p3.8core-60ram', # ok
#'hdn.medium-ssd-ephem': # nemusime resit neni pouzit u zadneho projektu v g1
'hpc.12core-64ram-ssd-ephem-500': 'c3.12core-64ram-ssd-ephem-500', # neni v G2 a je potreba
'hpc.16core-128ram': 'c3.16core-128ram', # neni v G2 a je potreba
'hpc.16core-256ram': 'c3.16core-256ram', # neni v G2 a je potreba
'hpc.16core-32ram': 'c2.16core-30ram', # ok
'hpc.16core-32ram-100disk': 'c3.16core-32ram-100disk', # neni v G2 a je potreba
'hpc.16core-64ram-ssd-ephem': 'hpc.16core-64ram-ssd', # neni v G2 a je potreba
'hpc.16core-64ram-ssd-ephem-500': 'p3.16core-60ram', # ok
'hpc.18core-48ram': '', # neni v G2 a je potreba
'hpc.18core-64ram-dukan': 'c2.24core-60ram', # nemusime resit
'hpc.24core-96ram-ssd-ephem': 'hpc.24core-96ram-ssd', # nemusime resit
'hpc.30core-128ram-ssd-ephem-500': 'c3.30core-128ram-ssd-ephem-500', # neni v G2 a je potreba
'hpc.30core-256ram': 'c3.30core-256ram', # neni v G2 a je potreba
'hpc.30core-64ram': 'c3.32core-60ram', # v G2 je o 2 CPU vic
'hpc.4core-16ram-ssd-ephem': 'p3.4core-16ram', # ok
'hpc.4core-16ram-ssd-ephem-500': 'p3.4core-16ram', # ok
'hpc.4core-4ram': 'e1.medium', # nemusime resit
'hpc.8core-128ram': 'c3.8core-128ram', # neni v G2 a je potreba
'hpc.8core-16ram': 'c2.8core-16ram', # ok
'hpc.8core-16ram-ssd-ephem': 'p3.8core-16ram', # nemusime resit
'hpc.8core-256ram': None, # nemusime resit
'hpc.8core-32ram-dukan': 'c2.8core-30ram', # nemusime resit
'hpc.8core-32ram-ssd-ephem': 'p3.8core-30ram', # ok
'hpc.8core-32ram-ssd-rcx-ephem': 'p3.8core-30ram', # ok
'hpc.8core-64ram-ssd-ephem-500': 'p3.8core-60ram', # ok
'hpc.8core-8ram': 'e1.1xlarge', # v G2 je o 20 GB mensi disk
'hpc.hdh-ephem': 'hpc.hdh', # neni a je potreba
'hpc.hdn.30core-128ram-ssd-ephem-500': 'c3.hdn.30core-128ram-ssd-ephem-500', # neni potreba
'hpc.hdn.4core-16ram-ssd-ephem-500': 'p3.4core-16ram', # neni potreba
#'hpc.ics-gladosag-full': 'c3.ics-gladosag-full', # neni potreba
'hpc.large': 'g2.3xlarge', # ok
'hpc.medium': 'c2.8core-30ram', # ok
'hpc.small': 'c2.4core-16ram', # ok
'hpc.xlarge': None, # neni v G2
'hpc.xlarge-memory': 'c3.xlarge-memory', # neni v G2
'standard.16core-32ram': 'g2.2xlarge', # ok
'standard.20core-128ram': 'e1.20core-128ram', # neni potreba
'standard.20core-256ram': 'e1.20core-256ram', # neni v G2
'standard.2core-16ram': 'c3.2core-16ram', # ok
'standard.large': 'e1.large', # ok pripadne jeste c3.4core-8ram
'standard.medium': 'e1.medium', # o 2 vice CPU
'standard.memory': 'c3.2core-30ram', # pripadne i c2.2core-30ram
'standard.one-to-many': 'c3.24core-60ram', # v G2 je o 4 vice CPU
'standard.small': 'e1.small', # 2x vice ram a CPU u G2
'standard.tiny': 'e1.tiny', # 2x vice ram a CPU u G2
'standard.xlarge': 'e1.2xlarge', # o 4 vice CPU G2
'standard.xlarge-cpu': 'e1.2xlarge', # ok
'standard.xxlarge': 'c2.8core-30ram', # ok
'standard.xxxlarge': 'c3.8core-60ram' # ok
}
assert source_flavor in flavor_mapping, "Source flavor can be mapped to destination one"
assert flavor_mapping[source_flavor], "Source flavor mapping is not valid"
return flavor_mapping[source_flavor]
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def create_destination_networking(args, src_ostack_conn, dst_ostack_conn, src_project, dst_project, src_network_name):
""" Create matching OpenStack networking (network, subnet, router) """
# read source network details
src_network = src_ostack_conn.network.find_network(src_network_name, project_id=src_project.id)
# read matching subnets details
src_subnets = [ src_ostack_conn.network.find_subnet(i_src_subnet_id) for i_src_subnet_id in src_network.subnet_ids ]
# read linked routers
src_network_router_ports = [ i_src_router_port for i_src_router_port in src_ostack_conn.list_ports(filters={'network_id': src_network.id}) if i_src_router_port.device_owner == 'network:router_interface' ]
src_network_routers_subnets = [ (src_ostack_conn.network.find_router(router_port.device_id), [rp_fixed_ip['subnet_id'] for rp_fixed_ip in router_port.fixed_ips if 'subnet_id' in rp_fixed_ip]) for router_port in src_network_router_ports ]
# read external network
dst_ext_network = dst_ostack_conn.network.find_network(args.destination_ipv4_external_network)
# create network
dst_network_name = get_dst_resource_name(args, src_network_name)
dst_network = dst_ostack_conn.network.find_network(dst_network_name,
project_id=dst_project.id)
if not dst_network:
dst_network = dst_ostack_conn.network.create_network(name=dst_network_name,
project_id=dst_project.id,
mtu=src_network.mtu,
description=get_dst_resource_desc(args,
src_network.description,
src_network.id),
port_security_enabled=src_network.is_port_security_enabled)
# create subnets
dst_subnets = []
subnet_mapping = {}
for i_src_subnet in src_subnets:
i_dst_subnet_name = get_dst_resource_name(args, i_src_subnet.name)
i_dst_subnet = dst_ostack_conn.network.find_subnet(i_dst_subnet_name, project_id=dst_project.id)
if not i_dst_subnet:
i_dst_subnet = dst_ostack_conn.network.create_subnet(network_id=dst_network.id,
name=i_dst_subnet_name,
cidr=i_src_subnet.cidr,
ip_version=i_src_subnet.ip_version,
enable_dhcp=i_src_subnet.is_dhcp_enabled,
project_id=dst_project.id,
allocation_pools=i_src_subnet.allocation_pools,
gateway_ip=i_src_subnet.gateway_ip,
host_routes=i_src_subnet.host_routes,
dns_nameservers=i_src_subnet.dns_nameservers,
description=get_dst_resource_desc(args,
i_src_subnet.description,
i_src_subnet.id))
subnet_mapping[i_src_subnet.id] = i_dst_subnet.id
dst_subnets.append(i_dst_subnet)
# create router(s) and associate with subnet(s) (if needed)
dst_network_routers = []
for i_src_network_router, i_src_network_router_subnets in src_network_routers_subnets:
i_dst_network_router_name = get_dst_resource_name(args, i_src_network_router.name)
i_dst_network_router = dst_ostack_conn.network.find_router(i_dst_network_router_name,
project_id=dst_project.id)
if not i_dst_network_router:
i_dst_network_router = dst_ostack_conn.network.create_router(name=i_dst_network_router_name,
description=get_dst_resource_desc(args,
i_src_network_router.description,
i_src_network_router.id),
project_id=dst_project.id,
external_gateway_info={"network_id": dst_ext_network.id})
for i_src_network_router_subnet in i_src_network_router_subnets:
# TODO: Principally there may be also foreign subnets, find more general solution
if i_src_network_router_subnet in subnet_mapping:
dst_ostack_conn.add_router_interface(i_dst_network_router, subnet_id=subnet_mapping[i_src_network_router_subnet])
dst_network_routers.append(i_dst_network_router)
return dst_network, dst_subnets, dst_network_routers
def get_or_create_dst_server_networking_v1(args,
source_project_conn, destination_project_conn,
source_project, destination_project,
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source_server):
""" assure created server networking (get or create) """
server_network_addresses = []
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for i_source_network_name, i_source_network_addresses in source_server.addresses.items():
i_destination_network_name = get_destination_network(i_source_network_name)
if not i_destination_network_name:
# if network is not mapped we need to create matching one
i_dst_network, _, _ = create_destination_networking(args,
source_project_conn, destination_project_conn,
source_project, destination_project,
i_source_network_name)
i_destination_network = destination_project_conn.network.find_network(i_destination_network_name or i_dst_network.id,
project_id=destination_project.id)
log_or_assert(args, f"F.3 Destination network exists ({i_destination_network})", i_destination_network)
server_network_addresses.append({'dst-network': i_destination_network,
'src-network-addresses': {'network-name': i_source_network_name,
'addresses': i_source_network_addresses}})
return server_network_addresses
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def get_or_create_dst_server_networking_v2(args,
source_project_conn, destination_project_conn,
source_project, destination_project,
source_server):
""" assure created server networking (get or create) """
server_network_addresses = []
for i_src_server_port in source_project_conn.network.ports(device_id=source_server.id):
i_src_server_port_network_name = source_project_conn.network.find_network(i_src_server_port.network_id).name
i_dst_server_port_network_name = get_destination_network(i_src_server_port_network_name)
args.logger.debug(f"Assuring VM ({source_server.name}) network {i_src_server_port_network_name} -> {i_dst_server_port_network_name}")
if not i_dst_server_port_network_name:
# if network is not mapped we need to create matching one
i_dst_network, _, _ = create_destination_networking(args,
source_project_conn, destination_project_conn,
source_project, destination_project,
i_src_server_port_network_name)
i_destination_network = destination_project_conn.network.find_network(i_dst_server_port_network_name or i_dst_network.id,
project_id=destination_project.id)
# network may be shared (created in different project), so let's ask again w/o project_id selector
if not i_destination_network:
i_destination_network = destination_project_conn.network.find_network(i_dst_server_port_network_name or i_dst_network.id)
log_or_assert(args, f"F.3 Destination network exists ({i_destination_network})", i_destination_network)
server_network_addresses.append({'dst-network': i_destination_network,
'src-network-addresses': {'network-name': i_src_server_port_network_name,
'addresses': source_server.addresses.get(i_src_server_port_network_name, None),
'port': i_src_server_port}})
args.logger.debug(f"VM ({source_server.name}) network addresses dump: {server_network_addresses}")
return server_network_addresses
def get_or_create_dst_server_networking(args,
source_project_conn, destination_project_conn,
source_project, destination_project,
source_server):
""" assure created server networking (get or create) """
server_network_addresses = []
for i_src_server_port_network_name, i_src_server_port_network_addresses in source_server.addresses.items():
i_src_server_ip_addr = [(i_item['addr']) for i_item in i_src_server_port_network_addresses \
if i_item['OS-EXT-IPS:type'] == 'fixed'][0]
i_src_server_mac_addr = [(i_item['OS-EXT-IPS-MAC:mac_addr']) for i_item in i_src_server_port_network_addresses \
if i_item['OS-EXT-IPS:type'] == 'fixed'][0]
i_src_server_ports = find_ostack_port(source_project_conn, i_src_server_mac_addr, i_src_server_ip_addr, device=source_server)
log_or_assert(args, f"F.3 Source server ostack fixed IP address detected ({i_src_server_ip_addr})", i_src_server_ip_addr)
log_or_assert(args, f"F.3 Source server ostack fixed MAC address detected ({i_src_server_mac_addr})", i_src_server_mac_addr)
log_or_assert(args, "F.3 Source server ostack port(s) detected", i_src_server_ports)
log_or_assert(args, "F.3 Source server ostack single (unambiguous) port detected", len(i_src_server_ports) == 1)
i_src_server_port = i_src_server_ports[0]
args.logger.debug(f"Source VM ({source_server.name}) network port detected (ip:{i_src_server_ip_addr}, mac:{i_src_server_mac_addr}, port:{i_src_server_port})")
i_dst_server_port_network_name = get_destination_network(i_src_server_port_network_name)
args.logger.debug(f"Assuring VM ({source_server.name}) network {i_src_server_port_network_name} -> {i_dst_server_port_network_name}")
if not i_dst_server_port_network_name:
# if network is not mapped we need to create matching one
i_dst_network, _, _ = create_destination_networking(args,
source_project_conn, destination_project_conn,
source_project, destination_project,
i_src_server_port_network_name)
i_destination_network = destination_project_conn.network.find_network(i_dst_server_port_network_name or i_dst_network.id,
project_id=destination_project.id)
# network may be shared (created in different project), so let's ask again w/o project_id selector
if not i_destination_network:
i_destination_network = destination_project_conn.network.find_network(i_dst_server_port_network_name or i_dst_network.id)
log_or_assert(args, f"F.3 Destination network exists ({i_destination_network})", i_destination_network)
server_network_addresses.append({'dst-network': i_destination_network,
'src-network-addresses': {'network-name': i_src_server_port_network_name,
'addresses': source_server.addresses.get(i_src_server_port_network_name, None),
'port': i_src_server_port}})
args.logger.debug(f"VM ({source_server.name}) network addresses dump: {server_network_addresses}")
return server_network_addresses
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def get_dst_server_flavor(args, src_server, dst_ostack_conn):
""" translate and return destination server flavor object """
source_server_flavor_name = src_server.flavor.name
destination_server_flavor_name = get_destination_flavor(source_server_flavor_name)
log_or_assert(args,
f"F.5 Source to Destination flavor mapping succeeeded ({source_server_flavor_name}->{destination_server_flavor_name})",
destination_server_flavor_name)
destination_server_flavor = dst_ostack_conn.compute.find_flavor(destination_server_flavor_name)
log_or_assert(args,
"F.6 Destination OpenStack flavor exists",
destination_server_flavor)
return destination_server_flavor
def get_dst_server_flavor_name_noassert(args, src_server, dst_ostack_conn):
""" translate and return destination server flavor name and object as tuple """
source_server_flavor_name = src_server.flavor.name
destination_server_flavor_name = get_destination_flavor(source_server_flavor_name)
if destination_server_flavor_name:
args.logger.info(f"F.5 Source to Destination flavor mapping succeeeded ({source_server_flavor_name}->{destination_server_flavor_name})")
destination_server_flavor = dst_ostack_conn.compute.find_flavor(destination_server_flavor_name)
if destination_server_flavor:
args.logger.info(f"F.6 Destination OpenStack flavor exists in destination project ({destination_server_flavor_name})")
else:
args.logger.error(f"F.6 Destination OpenStack flavor does not exist in destination project ({destination_server_flavor_name}). Add flavor access in cloud-entities!")
else:
args.logger.error(f"F.5 Source to Destination flavor mapping failed ({source_server_flavor_name}->{destination_server_flavor_name}). You need to update flavor mapping LUT table!")
return destination_server_flavor_name
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def get_source_keypairs(args):
""" receive source openstack keypairs from ceph migrator host as xml formatted sql dump """
reply_stdout, _, reply_ecode = remote_cmd_exec(args.ceph_migrator_host,
args.ceph_migrator_user,
args.ceph_migrator_sshkeyfile.name,
f"cat {args.source_keypair_xml_dump_file}")
assert reply_ecode == 0, "Keypairs received"
table_dictdata = xmltodict.parse(reply_stdout)
table_data_dictdata = table_dictdata['mysqldump']['database']['table_data']['row']
return normalize_table_data(table_data_dictdata)
def get_source_keypair(keypairs, keypair_name, user_id):
""" get specific source cloud keypair from source keypairs """
keypairs_selected = [ i_keypair for i_keypair in keypairs if i_keypair.get("name", "") == keypair_name and i_keypair.get("user_id", "") == user_id ]
if keypairs_selected:
return keypairs_selected[0]
return None
def create_keypair(args, ostack_connection, keypair):
""" create openstack keypair object """
return ostack_connection.compute.create_keypair(name=get_dst_resource_name(args, keypair['name']),
public_key=keypair['public_key'], type=keypair['type'])
def get_or_create_dst_server_keypair(args, source_keypairs, src_server, dst_ostack_conn):
""" assure destination cloud keypair exists """
source_server_keypair = get_source_keypair(source_keypairs,
src_server.key_name,
src_server.user_id)
log_or_assert(args,
f"F.7 Source OpenStack server keypair found ({src_server.key_name}).",
source_server_keypair,
msg_guidance="Current source OpenStack cloud keypair dump is outdated already and does not contain mentioned keypair." \
"Re-dump source OpenStack keypairs to ceph migrator server node and retry migration.")
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destination_server_keypair = None
if destination_server_keypairs := [i_keypair for i_keypair in dst_ostack_conn.list_keypairs()
if i_keypair.name == get_dst_resource_name(args,
src_server.key_name)]:
destination_server_keypair = destination_server_keypairs[0]
log_or_assert(args,
f"F.8 Destination OpenStack server keypair found already ({destination_server_keypair.name})",
destination_server_keypair)
else:
destination_server_keypair = create_keypair(args,
dst_ostack_conn,
source_server_keypair)
args.logger.info("F.8 Destination OpenStack server keypair created")
log_or_assert(args,
f"F.9 Destination OpenStack server keypair exists ({destination_server_keypair.name})",
destination_server_keypair)
return destination_server_keypair
def create_security_groups(args, src_ostack_conn, dst_ostack_conn, src_security_group, dst_project, recursion_stack=None):
""" create openstack security group[s] """
int_recursion_stack = {} if recursion_stack is None else recursion_stack
int_sg = dst_ostack_conn.network.create_security_group(name=get_dst_resource_name(args, src_security_group.name),
description=get_dst_resource_desc(args,
src_security_group.description,
src_security_group.id),
project_id=dst_project.id)
int_recursion_stack[src_security_group.id] = int_sg.id
for i_rule in src_security_group.security_group_rules:
# browse security group rules
i_mod_rule = trim_dict(i_rule, denied_keys=['id', 'project_id', 'tenant_id', 'revision_number', 'updated_at', 'created_at', 'tags', 'standard_attr_id', 'normalized_cidr'])
i_mod_rule['security_group_id'] = int_sg.id
i_mod_rule['project_id'] = dst_project.id
i_mod_rule = {i_k: i_mod_rule[i_k] for i_k in i_mod_rule if i_mod_rule[i_k] is not None}
if i_mod_rule.get('remote_group_id') is not None:
if i_mod_rule['remote_group_id'] in int_recursion_stack:
# keep reference to itself or known (already created) SGs
i_mod_rule['remote_group_id'] = int_recursion_stack[i_mod_rule['remote_group_id']]
# get linked source SG
elif _src_sg := src_ostack_conn.network.find_security_group(i_mod_rule['remote_group_id']):
if _dst_sg := dst_ostack_conn.network.find_security_group(get_dst_resource_name(args, _src_sg.name),
project_id=dst_project.id):
i_mod_rule['remote_group_id'] = _dst_sg.id
else:
int_linked_sg = create_security_groups(args, src_ostack_conn, dst_ostack_conn,
_src_sg, dst_project,
copy.deepcopy(int_recursion_stack))
i_mod_rule['remote_group_id'] = int_linked_sg.id
try:
dst_ostack_conn.network.create_security_group_rule(**i_mod_rule)
except openstack.exceptions.ConflictException:
pass
return int_sg
def duplicate_ostack_project_security_groups(args, src_ostack_conn, dst_ostack_conn, src_project, dst_project):
""" duplicate all projects's openstack security group[s] """
src_project_security_groups = tuple(src_ostack_conn.network.security_groups(project_id=src_project.id))
for i_src_security_group in src_project_security_groups:
j_dst_security_group_found = False
for j_dst_security_group in tuple(dst_ostack_conn.network.security_groups(project_id=dst_project.id)):
if get_dst_resource_name(args, i_src_security_group.name) == j_dst_security_group.name and \
i_src_security_group.id in j_dst_security_group.description:
j_dst_security_group_found = True
if not j_dst_security_group_found:
create_security_groups(args, src_ostack_conn, dst_ostack_conn, i_src_security_group, dst_project)
return src_project_security_groups, tuple(dst_ostack_conn.network.security_groups(project_id=dst_project.id))
def get_or_create_dst_server_security_groups(args, src_ostack_conn, dst_ostack_conn, src_project, dst_project, src_server):
""" assure equivalent security groups are created in destination cloud """
dst_server_security_groups=[]
for i_src_server_security_group_name in {i_sg['name'] for i_sg in src_server.security_groups}:
i_src_server_security_group = src_ostack_conn.network.find_security_group(i_src_server_security_group_name,
project_id=src_project.id)
i_dst_server_security_group = None
if i_dst_server_security_group := dst_ostack_conn.network.find_security_group(get_dst_resource_name(args,
i_src_server_security_group.name),
project_id=dst_project.id):
log_or_assert(args,
f"F.10 Destination OpenStack server security group found already ({i_dst_server_security_group.name})",
i_dst_server_security_group)
else:
args.logger.info("F.10 Destination OpenStack server matching security group not found and gets created.")
i_dst_server_security_group = create_security_groups(args, src_ostack_conn, dst_ostack_conn,
i_src_server_security_group, dst_project)
log_or_assert(args,
f"F.10 Destination OpenStack server security group created ({i_dst_server_security_group.name})",
i_dst_server_security_group)
log_or_assert(args,
f"F.11 Destination OpenStack server security group exists ({i_dst_server_security_group.name})",
i_dst_server_security_group)
dst_server_security_groups.append(i_dst_server_security_group)
log_or_assert(args,
"F.12 Destination OpenStack server - destination security groups exists",
dst_server_security_groups)
return dst_server_security_groups
def get_server_block_device_mapping(args, server_volume_attachment, server_volume, server_root_device_name):
""" return server block device mapping item """
return {'source': {'block_storage_type': 'openstack-volume-ceph-rbd-image',
'volume_attachment_id': server_volume_attachment.id,
'volume_id': server_volume.id,
'ceph_pool_name': args.source_ceph_cinder_pool_name,
'ceph_rbd_image_name': server_volume.id},
'destination': {'volume_size': server_volume.size,
'volume_name': get_dst_resource_name(args, server_volume.name),
'volume_description': server_volume.description,
'volume_id': None,
'ceph_pool_name': args.destination_ceph_cinder_pool_name,
'device_name': os.path.basename(server_volume_attachment.device),
'volume_bootable': server_root_device_name == server_volume_attachment.device}}
def create_server_block_device_mappings(args, src_ostack_conn, src_server, source_rbd_images):
""" create description how are block devices connected to (src/dst) VM server """
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server_block_device_mappings = [ ]
# schema: [ {}, ... ]
# where {} is following dict
# { 'source': {'block_storage_type': 'openstack-volume-ceph-rbd-image', 'volume_attachment_id': <>, 'volume_id': <>,
# 'ceph_pool_name': <pool-name>, 'ceph_rbd_image_name': <rbd-image-name>, 'ceph_rbd_image_size': <size-gb>}
# OR
# {'block_storage_type': 'ceph-rbd-image', 'ceph_pool_name': <pool-name>, 'ceph_rbd_image_name': <rbd-image-name>, 'ceph_rbd_image_size': <size-gb> } ]
# 'destination': {'volume_size': <size-gb>, 'volume_id': <vol-id>, 'device_name': <dev-name>, 'volume_bootable': True/False}
# }
src_server_root_device_name = src_server.root_device_name
log_or_assert(args,
f"F.20 Source OpenStack server - root device name received ({src_server_root_device_name})",
src_server_root_device_name)
src_server_volume_attachments = tuple(src_ostack_conn.compute.volume_attachments(src_server.id))
args.logger.debug(f"F.21 Source OpenStack server - volume attachments received {src_server_volume_attachments}")
src_ceph_ephemeral_rbd_image = None
if src_server_root_device_name in [ i_source_server_attachment.device for i_source_server_attachment in src_server_volume_attachments ]:
args.logger.info("F.22 Source OpenStack server - one of attached volume is attached as the root partition")
# populate server_block_device_mappings
for i_source_server_volume_attachment in src_server_volume_attachments:
i_server_volume = src_ostack_conn.block_storage.find_volume(i_source_server_volume_attachment.volume_id)
server_block_device_mappings.append(get_server_block_device_mapping(args, i_source_server_volume_attachment,
i_server_volume, src_server_root_device_name))
else:
args.logger.info("F.22 Source OpenStack server - none of attached volumes is attached as the root partition. Seeking for root partition RBD image")
src_ceph_ephemeral_rbd_image = f"{src_server.id}_disk"
if src_ceph_ephemeral_rbd_image in source_rbd_images[args.source_ceph_ephemeral_pool_name]:
args.logger.info(f"F.23 Source OpenStack server - Root partition found as RBD image {args.source_ceph_ephemeral_pool_name}/{src_ceph_ephemeral_rbd_image}")
# get rbd image info / size
src_ceph_ephemeral_rbd_image_data, _, _ = clib.ceph_rbd_image_info(args, args.source_ceph_ephemeral_pool_name,
src_ceph_ephemeral_rbd_image)
log_or_assert(args,
f"F.24 Source OpenStack ceph RBD image proper information received {src_ceph_ephemeral_rbd_image_data}",
src_ceph_ephemeral_rbd_image_data and 'size' in src_ceph_ephemeral_rbd_image_data)
src_ceph_ephemeral_rbd_image_size = math.ceil(src_ceph_ephemeral_rbd_image_data['size'] / 1024 / 1024 / 1024)
log_or_assert(args,
f"F.25 Source OpenStack ceph RBD image size calculated ({src_ceph_ephemeral_rbd_image_size})",
src_ceph_ephemeral_rbd_image_size)
# populate server_block_device_mappings
## initial disk
server_block_device_mappings.append({'source': {'block_storage_type': 'ceph-rbd-image',
'volume_id': src_ceph_ephemeral_rbd_image,
'ceph_pool_name': args.source_ceph_ephemeral_pool_name,
'ceph_rbd_image_name': src_ceph_ephemeral_rbd_image,
'ceph_rbd_image_size': src_ceph_ephemeral_rbd_image_size},
'destination': {'volume_size': src_ceph_ephemeral_rbd_image_size,
'volume_name': get_dst_resource_name(args,
src_ceph_ephemeral_rbd_image),
'volume_description': f"RBD {args.source_ceph_ephemeral_pool_name}/{src_ceph_ephemeral_rbd_image}",
'volume_id': None,
'ceph_pool_name': args.destination_ceph_cinder_pool_name,
'device_name': os.path.basename(src_server_root_device_name),
'volume_bootable': True}})
## other disks attached to VM
for i_source_server_volume_attachment in src_server_volume_attachments:
i_server_volume = src_ostack_conn.block_storage.find_volume(i_source_server_volume_attachment.volume_id)
server_block_device_mappings.append(get_server_block_device_mapping(args,
i_source_server_volume_attachment,
i_server_volume,
src_server_root_device_name))
log_or_assert(args,
"F.26 Source OpenStack server - root partition detected",
server_block_device_mappings and server_block_device_mappings[0] and server_block_device_mappings[0]['source'])
log_or_assert(args,
"F.27 Destination OpenStack server - root partition details generated",
server_block_device_mappings and server_block_device_mappings[0] and server_block_device_mappings[0]['destination'])
return server_block_device_mappings
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def create_dst_server_volumes_update_block_device_mappings(args, server_block_device_mappings, dst_ostack_conn, destination_image):
""" create destination cloud volumes and final destination server to block storage mappings """
out_server_block_device_mappings = copy.deepcopy(server_block_device_mappings)
for i_dst_server_block_device_mapping in out_server_block_device_mappings:
i_new_volume_args = {'name': i_dst_server_block_device_mapping['destination']['volume_name'],
'size': i_dst_server_block_device_mapping['destination']['volume_size'],
'description': get_dst_resource_desc(args,
i_dst_server_block_device_mapping['destination']['volume_description'],
i_dst_server_block_device_mapping['source']['volume_id'])}
# TODO: this seems to be the only way how to create bootable volume using openstacksdk, check again
if i_dst_server_block_device_mapping['destination']['volume_bootable']:
i_new_volume_args['imageRef'] = destination_image.id
i_new_volume = dst_ostack_conn.block_storage.create_volume(**i_new_volume_args)
log_or_assert(args,
f"F.29 Destination OpenStack volume created (name:{i_new_volume.name}, id:{i_new_volume.id})",
i_new_volume)
wait_for_ostack_volume_status(dst_ostack_conn, i_new_volume.id, 'available')
log_or_assert(args,
f"F.30 Destination OpenStack volume available (name:{i_new_volume.name}, id:{i_new_volume.id})",
wait_for_ostack_volume_status(dst_ostack_conn, i_new_volume.id, 'available') == 'available')
# remember volume ID
i_dst_server_block_device_mapping['destination']['volume_id'] = i_new_volume.id
for i_dst_server_block_device_mapping in out_server_block_device_mappings:
log_or_assert(args,
f"F.31 Destination OpenStack volume IDs properly stored (id:{i_dst_server_block_device_mapping['destination']['volume_id']})",
i_dst_server_block_device_mapping['destination']['volume_id'])
return out_server_block_device_mappings
def describe_server_network_connection(args, dst_ostack_conn, dst_project, netaddr_dict):
""" create ostack server to network connection via network id or fixed-ip
retults in single dictionary fed to conn.compute.create_server(...networks=[ <>, ...])
"""
# netaddr_dict{ 'dst-network': Network,
# 'src-network-addresses': {'network-name': <source-network-name>,
# 'addresses': [ ... ],
# 'port': <openstack.network.v2.port.Port object>} }
func_name = inspect.currentframe().f_code.co_name
msg_suffix = "Carefully check whether migrated VM is accessible and can communicate with outside world."
src_port = netaddr_dict['src-network-addresses']['port']
src_port_ip = src_port.fixed_ips[0]['ip_address']
dst_network = netaddr_dict['dst-network']
dst_port = None
# detect already existing port
dst_port_list = find_ostack_port(dst_ostack_conn, src_port.mac_address, src_port_ip, description_substr=src_port.id,
project=dst_project, network=dst_network)
if dst_port_list and len(dst_port_list) == 1:
dst_port = dst_port_list[0]
args.logger.debug(f"{func_name}() Reusing already existing ostack port. " \
f"(mac: {src_port.mac_address}, ip: {src_port_ip}, desc: ~ {src_port.id}")
else:
args.logger.debug(f"{func_name}() Creating an ostack port. (mac: {src_port.mac_address}, ip: {src_port_ip}")
dst_port_fixed_ip = {"subnet_id": dst_network.subnet_ids[0]}
if isinstance(ipaddress.ip_address(src_port_ip), ipaddress.IPv4Address):
# do not assign ipv6 public address (different CIDR and SLAAC in place)
dst_port_fixed_ip['ip_address'] = src_port_ip
dst_port = dst_ostack_conn.network.create_port(name=get_dst_resource_name(args, src_port.name or ''),
description=get_dst_resource_desc(args,
src_port.description,
src_port.id),
network_id=dst_network.id,
mac_address=src_port.mac_address,
fixed_ips=[dst_port_fixed_ip])
except Exception as ex:
args.logger.error(f"{func_name}() throws exception while creating an ostack port.",
exc_info=True)
if dst_port:
return {'port': dst_port.id}
args.logger.warning(f"{func_name}() Creation of dedicated network port failed! " \
f"Migrated VM will not have same internal IP address / MAC address. {msg_suffix}")
return {'uuid': dst_network.id}
def create_dst_server(args, src_server, dst_ostack_conn, dst_project, flavor, keypair, block_device_mappings, server_network_addresses):
""" create destination server instance """
# Note: argument network is not valid anymore, use networks
server_args = {'name': get_dst_resource_name(args, src_server.name),
'flavorRef': flavor.id,
'block_device_mapping_v2': [ {'source_type': 'volume',
'destination_type': 'volume',
'uuid': i_block_device_mapping['destination']['volume_id'],
'device_name': i_block_device_mapping['destination']['device_name'],
'boot_index': 0 if i_block_device_mapping['destination']['volume_bootable'] else None}
for i_block_device_mapping in block_device_mappings ],
'boot_volume': block_device_mappings[0]['destination']['volume_id'],
'key_name': keypair["name"],
'networks': [ describe_server_network_connection(args,
dst_ostack_conn,
i_netaddr) for i_netaddr in server_network_addresses ]}
log_or_assert(args,
"F.35 Destination OpenStack server arguments are generated with valid block-device-mapping",
server_args['block_device_mapping_v2'], locals())
log_or_assert(args,
"F.36 Destination OpenStack server arguments are generated with valid network configuration",
server_args['networks'], locals())
server = dst_ostack_conn.compute.create_server(**server_args)
log_or_assert(args,
f"F.37 Destination OpenStack server (name:{server.name}) is created",
server, locals())
server = dst_ostack_conn.compute.wait_for_server(server)
log_or_assert(args,
f"F.38 Destination OpenStack server (name:{server.name}) got ACTIVE",
server.status == 'ACTIVE', locals())
return server
def get_ostack_objstore_containers(ostack_connection):
""" receive objstore containers """
return list(ostack_connection.object_store.containers())
def find_ostack_port(ostack_connection, mac_address, ip_address, description_substr='', project=None, network=None, device=None):
""" find openstack port and narrow down selection with MAC, IP and port description """
query_ports_args = {}
if network:
query_ports_args['network_id'] = network.id
if project:
query_ports_args['project_id'] = project.id
if device:
query_ports_args['device_id'] = device.id
project_ports = ostack_connection.network.ports(**query_ports_args)
return [i_port for i_port in project_ports if i_port.mac_address==mac_address and \
description_substr in i_port.description and \
ip_address in [i_addr.get('ip_address') for i_addr in i_port.fixed_ips]]
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def server_detect_floating_address(server):
""" return True if server has attached floating IP address otherwise False """
for _, i_ip_details in server.addresses.items():
for i_ip_detail in i_ip_details:
if str(i_ip_detail.get('version')) == '4' and i_ip_detail.get('OS-EXT-IPS:type') == 'floating':
return True
return False
def get_server_floating_ip_port(ostack_connection, server):
""" set server's port where to put FIP, otherwise None """
for i_port in ostack_connection.network.ports(device_id=server.id):
for i_port_ip in i_port.fixed_ips:
for i_ip_prefix in ('192.', '10.', '172.'):
if str(i_port_ip.get('ip_address')).startswith(i_ip_prefix):
return i_port
return None
def get_server_floating_ip_properties(server):
""" return VM FIP properties (IP type, internal IP addr, FIP addr, MAC addr) """
int_address_data = {}
for i_net_name, i_net_addresses in server.addresses.items():
int_address_data.clear()
for i_addr_field in i_net_addresses:
int_ip_type = i_addr_field.get('OS-EXT-IPS:type', 'unknown')
for i_field_name in ('addr', 'version', 'OS-EXT-IPS-MAC:mac_addr',):
int_address_data[f"{int_ip_type}/{i_field_name}"] = i_addr_field.get(i_field_name, '?')
if "fixed/version" in int_address_data and \
"floating/version" in int_address_data and \
"fixed/OS-EXT-IPS-MAC:mac_addr" in int_address_data and \
"floating/OS-EXT-IPS-MAC:mac_addr" in int_address_data and \
int_address_data["fixed/version"] == int_address_data["floating/version"] and \
int_address_data["fixed/OS-EXT-IPS-MAC:mac_addr"] == int_address_data["floating/OS-EXT-IPS-MAC:mac_addr"]:
int_address_data["fixed/network-name"] = i_net_name
return int_address_data
return {}