def morph_image(connection_info, target_hypervisor, target_platform,
volume_devs, nics_info, event_manager):
(ip, port, username, pkey) = connection_info
LOG.info("Waiting for connectivity on host: %(ip)s:%(port)s",
{"ip": ip, "port": port})
utils.wait_for_port_connectivity(ip, port)
event_manager.progress_update(
"Connecting to host: %(ip)s:%(port)s" % {"ip": ip, "port": port})
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(hostname=ip, port=port, username=username, pkey=pkey)
os_mount_tools = osmount_factory.get_os_mount_tools(ssh, event_manager)
event_manager.progress_update("Discovering and mounting OS partitions")
os_root_dir, other_mounted_dirs = os_mount_tools.mount_os(volume_devs)
os_morphing_tools, os_info = osmorphing_factory.get_os_morphing_tools(
ssh, os_root_dir, target_hypervisor, target_platform, event_manager)
event_manager.progress_update('OS being migrated: %s' % str(os_info))
os_morphing_tools.set_net_config(nics_info, dhcp=True)
LOG.info("Pre packages")
os_morphing_tools.pre_packages_install()
(packages_add,
packages_remove) = os_morphing_tools.get_packages()
if packages_add:
event_manager.progress_update(
"Adding packages: %s" % str(packages_add))
os_morphing_tools.install_packages(packages_add)
if packages_remove:
event_manager.progress_update(
"Removing packages: %s" % str(packages_remove))
os_morphing_tools.uninstall_packages(packages_remove)
LOG.info("Post packages")
os_morphing_tools.post_packages_install()
event_manager.progress_update("Dismounting OS partitions")
os_mount_tools.dismount_os(other_mounted_dirs + [os_root_dir])
def morph_image(connection_info, os_type, target_hypervisor, target_platform,
nics_info, event_manager, ignore_devices=[]):
os_mount_tools = osmount_factory.get_os_mount_tools(
os_type, connection_info, event_manager, ignore_devices)
event_manager.progress_update("Discovering and mounting OS partitions")
os_root_dir, other_mounted_dirs = os_mount_tools.mount_os()
conn = os_mount_tools.get_connection()
os_morphing_tools, os_info = osmorphing_factory.get_os_morphing_tools(
conn, os_type, os_root_dir, target_hypervisor, target_platform,
event_manager)
event_manager.progress_update('OS being migrated: %s' % str(os_info))
os_morphing_tools.set_net_config(nics_info, dhcp=True)
LOG.info("Pre packages")
os_morphing_tools.pre_packages_install()
(packages_add,
packages_remove) = os_morphing_tools.get_packages()
if packages_remove:
event_manager.progress_update(
"Removing packages: %s" % str(packages_remove))
os_morphing_tools.uninstall_packages(packages_remove)
if packages_add:
event_manager.progress_update(
"Adding packages: %s" % str(packages_add))
os_morphing_tools.install_packages(packages_add)
LOG.info("Post packages")
os_morphing_tools.post_packages_install()
event_manager.progress_update("Dismounting OS partitions")
os_mount_tools.dismount_os(other_mounted_dirs + [os_root_dir])
def morph_image(origin_provider, destination_provider, connection_info,
osmorphing_info, user_script, event_handler):
event_manager = events.EventManager(event_handler)
os_type = osmorphing_info.get('os_type')
ignore_devices = osmorphing_info.get('ignore_devices', [])
# instantiate and run OSMount tools:
os_mount_tools = osmount_factory.get_os_mount_tools(
os_type, connection_info, event_manager, ignore_devices,
CONF.default_osmorphing_operation_timeout)
proxy_settings = _get_proxy_settings()
os_mount_tools.set_proxy(proxy_settings)
LOG.info("Preparing for OS partitions discovery")
try:
os_mount_tools.setup()
except Exception as err:
raise exception.CoriolisException(
"Failed to set up the minion machine for OSMorphing. This may be "
"due to an incompatibility between the OS image used for the "
"OSMorphing minion machine and the VM undergoing OSMorphing. "
"Error was: %s" % str(err)) from err
event_manager.progress_update("Discovering and mounting OS partitions")
os_root_dir, os_root_dev = os_mount_tools.mount_os()
osmorphing_info['os_root_dir'] = os_root_dir
osmorphing_info['os_root_dev'] = os_root_dev
conn = os_mount_tools.get_connection()
environment = os_mount_tools.get_environment()
detected_os_info = run_os_detect(origin_provider,
destination_provider,
conn,
os_type,
os_root_dir,
osmorphing_info,
tools_environment=environment)
# TODO(aznashwan):
# - export the source hypervisor type option in the VM's export info
# - automatically detect the target hypervisor type from the worker VM
hypervisor_type = osmorphing_info.get('hypervisor_type', None)
osmorphing_parameters = osmorphing_info.get('osmorphing_parameters', {})
export_os_morphing_tools = None
try:
export_tools_cls = get_osmorphing_tools_class_for_provider(
origin_provider, detected_os_info, os_type, osmorphing_info)
if export_tools_cls:
LOG.info(
"Instantiating OSMorphing tools class '%s' for export provider"
" '%s'", export_tools_cls.__name__, type(origin_provider))
export_os_morphing_tools = export_tools_cls(
conn, os_root_dir, os_root_dev, hypervisor_type, event_manager,
detected_os_info, osmorphing_parameters,
CONF.default_osmorphing_operation_timeout)
export_os_morphing_tools.set_environment(environment)
else:
LOG.debug(
"No compatible OSMorphing tools class found for export provider "
"'%s'",
type(origin_provider).__name__)
except exception.OSMorphingToolsNotFound:
LOG.warn("No tools found for export provider of type: %s",
type(origin_provider))
import_os_morphing_tools_cls = get_osmorphing_tools_class_for_provider(
destination_provider, detected_os_info, os_type, osmorphing_info)
if not import_os_morphing_tools_cls:
LOG.error(
"No compatible OSMorphing tools found from import provider '%s' "
"for the given detected OS info %s", type(destination_provider),
detected_os_info)
raise exception.OSMorphingToolsNotFound(os_type=os_type)
import_os_morphing_tools = import_os_morphing_tools_cls(
conn, os_root_dir, os_root_dev, hypervisor_type, event_manager,
detected_os_info, osmorphing_parameters,
CONF.default_osmorphing_operation_timeout)
import_os_morphing_tools.set_environment(environment)
if user_script:
event_manager.progress_update('Running OS morphing user script')
import_os_morphing_tools.run_user_script(user_script)
else:
event_manager.progress_update('No OS morphing user script specified')
event_manager.progress_update('OS being migrated: %s' %
detected_os_info['friendly_release_name'])
(packages_add, _) = import_os_morphing_tools.get_packages()
if export_os_morphing_tools:
(_, packages_remove) = export_os_morphing_tools.get_packages()
# Don't remove packages that need to be installed
packages_remove = list(set(packages_remove) - set(packages_add))
LOG.info("Pre packages uninstall")
export_os_morphing_tools.pre_packages_uninstall(packages_remove)
if packages_remove:
event_manager.progress_update("Removing packages: %s" %
str(packages_remove))
export_os_morphing_tools.uninstall_packages(packages_remove)
LOG.info("Post packages uninstall")
export_os_morphing_tools.post_packages_uninstall(packages_remove)
LOG.info("Pre packages install")
import_os_morphing_tools.pre_packages_install(packages_add)
nics_info = osmorphing_info.get('nics_info')
set_dhcp = osmorphing_info.get('nics_set_dhcp', True)
import_os_morphing_tools.set_net_config(nics_info, dhcp=set_dhcp)
LOG.info("Pre packages")
if packages_add:
event_manager.progress_update("Adding packages: %s" %
str(packages_add))
import_os_morphing_tools.install_packages(packages_add)
LOG.info("Post packages install")
import_os_morphing_tools.post_packages_install(packages_add)
event_manager.progress_update("Dismounting OS partitions")
try:
os_mount_tools.dismount_os(os_root_dir)
except Exception as err:
raise exception.CoriolisException(
"Failed to dismount the OS undergoing OSMorphing. This could have "
"been caused by minor FS corruption during the last disk sync. "
"Please ensure that any source-side FS integrity mechanisms (e.g. "
"filesystem quiescing, crash-consistent backups, etc.) are "
"enabled and available for the source machine. If none are "
"available, please try migrating/replicating the source machine "
"while it is powered off. Error was: %s" % str(err)) from err
def morph_image(origin_provider, destination_provider, connection_info,
osmorphing_info, event_handler):
event_manager = events.EventManager(event_handler)
event_manager.progress_update("Preparing instance for target platform")
os_type = osmorphing_info.get('os_type')
ignore_devices = osmorphing_info.get('ignore_devices', [])
os_mount_tools = osmount_factory.get_os_mount_tools(
os_type, connection_info, event_manager, ignore_devices)
proxy_settings = _get_proxy_settings()
os_mount_tools.set_proxy(proxy_settings)
event_manager.progress_update("Preparing for OS partitions discovery")
os_mount_tools.setup()
event_manager.progress_update("Discovering and mounting OS partitions")
os_root_dir, other_mounted_dirs, os_root_dev = os_mount_tools.mount_os()
osmorphing_info['os_root_dir'] = os_root_dir
osmorphing_info['os_root_dev'] = os_root_dev
conn = os_mount_tools.get_connection()
environment = os_mount_tools.get_environment()
try:
(export_os_morphing_tools, _) = origin_provider.get_os_morphing_tools(
conn, osmorphing_info)
export_os_morphing_tools.set_environment(environment)
except exception.OSMorphingToolsNotFound:
export_os_morphing_tools = None
try:
(import_os_morphing_tools,
os_info) = destination_provider.get_os_morphing_tools(
conn, osmorphing_info)
import_os_morphing_tools.set_environment(environment)
except exception.OSMorphingToolsNotFound:
import_os_morphing_tools = None
os_info = None
if not import_os_morphing_tools:
event_manager.progress_update(
'No OS morphing tools found for this instance')
else:
event_manager.progress_update('OS being migrated: %s' % str(os_info))
(packages_add, _) = import_os_morphing_tools.get_packages()
if export_os_morphing_tools:
(_, packages_remove) = export_os_morphing_tools.get_packages()
# Don't remove packages that need to be installed
packages_remove = list(set(packages_remove) - set(packages_add))
LOG.info("Pre packages uninstall")
export_os_morphing_tools.pre_packages_uninstall(packages_remove)
if packages_remove:
event_manager.progress_update(
"Removing packages: %s" % str(packages_remove))
export_os_morphing_tools.uninstall_packages(packages_remove)
LOG.info("Post packages uninstall")
export_os_morphing_tools.post_packages_uninstall(packages_remove)
LOG.info("Pre packages install")
import_os_morphing_tools.pre_packages_install(packages_add)
nics_info = osmorphing_info.get('nics_info')
set_dhcp = osmorphing_info.get('nics_set_dhcp', True)
import_os_morphing_tools.set_net_config(nics_info, dhcp=set_dhcp)
LOG.info("Pre packages")
if packages_add:
event_manager.progress_update(
"Adding packages: %s" % str(packages_add))
import_os_morphing_tools.install_packages(packages_add)
LOG.info("Post packages install")
import_os_morphing_tools.post_packages_install(packages_add)
event_manager.progress_update("Dismounting OS partitions")
os_mount_tools.dismount_os(other_mounted_dirs + [os_root_dir])
def morph_image(origin_provider, destination_provider, connection_info,
osmorphing_info, user_script, event_handler):
event_manager = events.EventManager(event_handler)
os_type = osmorphing_info.get('os_type')
ignore_devices = osmorphing_info.get('ignore_devices', [])
# instantiate and run OSMount tools:
os_mount_tools = osmount_factory.get_os_mount_tools(
os_type, connection_info, event_manager, ignore_devices)
proxy_settings = _get_proxy_settings()
os_mount_tools.set_proxy(proxy_settings)
LOG.info("Preparing for OS partitions discovery")
os_mount_tools.setup()
event_manager.progress_update("Discovering and mounting OS partitions")
os_root_dir, os_root_dev = os_mount_tools.mount_os()
osmorphing_info['os_root_dir'] = os_root_dir
osmorphing_info['os_root_dev'] = os_root_dev
conn = os_mount_tools.get_connection()
environment = os_mount_tools.get_environment()
detected_os_info = run_os_detect(origin_provider,
destination_provider,
conn,
os_type,
os_root_dir,
osmorphing_info,
tools_environment=environment)
# TODO(aznashwan):
# - export the source hypervisor type option in the VM's export info
# - automatically detect the target hypervisor type from the worker VM
hypervisor_type = osmorphing_info.get('hypervisor_type', None)
export_os_morphing_tools = None
try:
export_tools_cls = get_osmorphing_tools_class_for_provider(
origin_provider, detected_os_info, os_type, osmorphing_info)
if export_tools_cls:
LOG.info(
"Instantiating OSMorphing tools class '%s' for export provider"
" '%s'", export_tools_cls.__name__, type(origin_provider))
export_os_morphing_tools = export_tools_cls(
conn, os_root_dir, os_root_dev, hypervisor_type, event_manager,
detected_os_info)
export_os_morphing_tools.set_environment(environment)
else:
LOG.debug(
"No compatible OSMorphing tools class found for export provider "
"'%s'",
type(origin_provider).__name__)
except exception.OSMorphingToolsNotFound:
LOG.warn("No tools found for export provider of type: %s",
type(origin_provider))
import_os_morphing_tools_cls = get_osmorphing_tools_class_for_provider(
destination_provider, detected_os_info, os_type, osmorphing_info)
if not import_os_morphing_tools_cls:
LOG.error(
"No compatible OSMorphing tools found from import provider '%s' "
"for the given detected OS info %s", type(destination_provider),
detected_os_info)
raise exception.OSMorphingToolsNotFound(os_type=os_type)
import_os_morphing_tools = import_os_morphing_tools_cls(
conn, os_root_dir, os_root_dev, hypervisor_type, event_manager,
detected_os_info)
import_os_morphing_tools.set_environment(environment)
if user_script:
event_manager.progress_update('Running OS morphing user script')
import_os_morphing_tools.run_user_script(user_script)
else:
event_manager.progress_update('No OS morphing user script specified')
event_manager.progress_update('OS being migrated: %s' %
detected_os_info['friendly_release_name'])
(packages_add, _) = import_os_morphing_tools.get_packages()
if export_os_morphing_tools:
(_, packages_remove) = export_os_morphing_tools.get_packages()
# Don't remove packages that need to be installed
packages_remove = list(set(packages_remove) - set(packages_add))
LOG.info("Pre packages uninstall")
export_os_morphing_tools.pre_packages_uninstall(packages_remove)
if packages_remove:
event_manager.progress_update("Removing packages: %s" %
str(packages_remove))
export_os_morphing_tools.uninstall_packages(packages_remove)
LOG.info("Post packages uninstall")
export_os_morphing_tools.post_packages_uninstall(packages_remove)
LOG.info("Pre packages install")
import_os_morphing_tools.pre_packages_install(packages_add)
nics_info = osmorphing_info.get('nics_info')
set_dhcp = osmorphing_info.get('nics_set_dhcp', True)
import_os_morphing_tools.set_net_config(nics_info, dhcp=set_dhcp)
LOG.info("Pre packages")
if packages_add:
event_manager.progress_update("Adding packages: %s" %
str(packages_add))
try:
import_os_morphing_tools.install_packages(packages_add)
except Exception as err:
raise exception.CoriolisException(
"Failed to install packages: %s. Please review logs"
" for more details." % ", ".join(packages_add)) from err
LOG.info("Post packages install")
import_os_morphing_tools.post_packages_install(packages_add)
event_manager.progress_update("Dismounting OS partitions")
os_mount_tools.dismount_os(os_root_dir)
def morph_image(origin_provider, destination_provider, connection_info,
osmorphing_info, user_script, event_handler):
event_manager = events.EventManager(event_handler)
event_manager.progress_update("Preparing instance for target platform")
os_type = osmorphing_info.get('os_type')
ignore_devices = osmorphing_info.get('ignore_devices', [])
os_mount_tools = osmount_factory.get_os_mount_tools(
os_type, connection_info, event_manager, ignore_devices)
proxy_settings = _get_proxy_settings()
os_mount_tools.set_proxy(proxy_settings)
event_manager.progress_update("Preparing for OS partitions discovery")
os_mount_tools.setup()
event_manager.progress_update("Discovering and mounting OS partitions")
os_root_dir, os_root_dev = os_mount_tools.mount_os()
osmorphing_info['os_root_dir'] = os_root_dir
osmorphing_info['os_root_dev'] = os_root_dev
conn = os_mount_tools.get_connection()
environment = os_mount_tools.get_environment()
try:
(export_os_morphing_tools,
_) = origin_provider.get_os_morphing_tools(conn, osmorphing_info)
export_os_morphing_tools.set_environment(environment)
except exception.OSMorphingToolsNotFound:
LOG.warn("No tools found for export provider of type: %s",
type(origin_provider))
export_os_morphing_tools = None
(import_os_morphing_tools,
os_info) = destination_provider.get_os_morphing_tools(
conn, osmorphing_info)
if user_script:
event_manager.progress_update('Running OS morphing user script')
import_os_morphing_tools.run_user_script(user_script)
else:
event_manager.progress_update('No OS morphing user script specified')
if not import_os_morphing_tools:
event_manager.progress_update(
'No OS morphing tools found for this instance')
else:
import_os_morphing_tools.set_environment(environment)
event_manager.progress_update('OS being migrated: %s' % str(os_info))
(packages_add, _) = import_os_morphing_tools.get_packages()
if export_os_morphing_tools:
(_, packages_remove) = export_os_morphing_tools.get_packages()
# Don't remove packages that need to be installed
packages_remove = list(set(packages_remove) - set(packages_add))
LOG.info("Pre packages uninstall")
export_os_morphing_tools.pre_packages_uninstall(packages_remove)
if packages_remove:
event_manager.progress_update("Removing packages: %s" %
str(packages_remove))
export_os_morphing_tools.uninstall_packages(packages_remove)
LOG.info("Post packages uninstall")
export_os_morphing_tools.post_packages_uninstall(packages_remove)
LOG.info("Pre packages install")
import_os_morphing_tools.pre_packages_install(packages_add)
nics_info = osmorphing_info.get('nics_info')
set_dhcp = osmorphing_info.get('nics_set_dhcp', True)
import_os_morphing_tools.set_net_config(nics_info, dhcp=set_dhcp)
LOG.info("Pre packages")
if packages_add:
event_manager.progress_update("Adding packages: %s" %
str(packages_add))
try:
import_os_morphing_tools.install_packages(packages_add)
except Exception as err:
raise exception.CoriolisException(
"Failed to install packages: %s. Please review logs"
" for more details." % ", ".join(packages_add)) from err
LOG.info("Post packages install")
import_os_morphing_tools.post_packages_install(packages_add)
event_manager.progress_update("Dismounting OS partitions")
os_mount_tools.dismount_os(os_root_dir)
