def update_host_ovs(self, context, req, id, body, force, rollback):
"""
Update OpenVSwitch configuration.
:param context: The HTTP request context.
:param req: The HTTP request object.
:param id: The host to update.
:param body: The HTTP request body.
:param force: Whether the operation should be forced through, even if
potentially un-intended consequences are detected.
:param rollback: Whether the operation should be rolled back before
completion, often to test the rollback mechanism.
:returns: A list of dictionaries with warnings and errors.
"""
# This class should only be used in PowerKVM environments
self.raise_if_not_powerkvm()
# Verify the host we're trying to update exists
host_list = self._get_all_host_names(context)
if id not in host_list:
raise novaexception.ComputeHostNotFound(host=id)
# Performing an update requires knowledge of the current state of the
# host, retrieve a DOM of the current state with a remote call.
current_dom = rpc_caller.get_host_ovs(context, [id])[0]
if len(current_dom.error_list) > 0:
raise net_excp.IBMPowerKVMVswitchUpdateException()
# Validate the JSON in the PUT request body
error_warning_dict = self._validate_put_body(body, current_dom)
if error_warning_dict:
return [error_warning_dict]
# Get a DOM of the data the caller wants to update to
body = self._augment_put_request(body, id)
desired_dom = self._dict_to_dom(body, [current_dom])[0]
# Make the remote call to the endpoint(s) to set ovs data
error_warning_dict = rpc_caller.update_host_ovs(context,
id,
desired_dom.to_dict(),
force,
rollback)
return error_warning_dict
def get_host_ovs(self, context, req, host_name=None):
"""
Read OpenVSwitch configuration.
:param context: The HTTP request context.
:param req: The HTTP request object.
:param host_name: An optional host name to filter data with.
:returns: A dictionary of host-ovs data.
"""
# This class should only be used in PowerKVM environments
self.raise_if_not_powerkvm()
# If a host was specified, verify it exists
host_list = self._get_all_host_names(context)
if host_name is not None:
if host_name not in host_list:
raise novaexception.ComputeHostNotFound(host=host_name)
host_list = [host_name]
LOG.debug("host-ovs GET for host(s) %s" % host_list)
# Parse the vswitch_name from the request, if present
vswitch_name = None
if 'vswitch_name' in req.GET:
vswitch_name = req.GET['vswitch_name']
if vswitch_name == '':
raise net_excp.IBMPowerKVMVswitchNotFound(ovs_name='')
# Make the remote call to the endpoint(s) to fetch ovs data
dom_list = rpc_caller.get_host_ovs(context, host_list)
# Filter based on the vswitch name, if necessary
self._filter_vswitch(dom_list, vswitch_name)
# Filter empty linux bridges
self._filter_empty_bridges(dom_list)
# Convert DOM objects into REST API dictionary format
host_dict = self._dom_to_dict(dom_list)
return host_dict
