r00t2/libvirt_tools
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need to add a sleep in there for now.

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This commit is contained in:
brent s. 2020-08-02 04:19:09 -04:00
parent 6006554ad1
commit d15510e2b4
Signed by: bts
GPG Key ID: 8C004C2F93481F6B
1 changed files with 22 additions and 8 deletions
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30
restart_net.py
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@ -30,18 +30,30 @@ class DomainNetwork(object):
def __init__(self, dom): def __init__(self, dom):
# dom is a libvirt.virDomain (or whatever it's called) instance. # dom is a libvirt.virDomain (or whatever it's called) instance.
self.dom = dom self.dom = dom
self.dom_xml = etree.fromstring(dom.XMLDesc()) self.dom_xml = None
self.ifaces = [] self.ifaces = []
self._get_xml()


def get_nets(self, netnames): def _get_xml(self):
for iface in self.dom_xml.xpath('devices/interface'): self.dom_xml = etree.fromstring(self.dom.XMLDesc())
if iface.attrib.get('type') == 'network':
src_xml = iface.find('source')
if src_xml is not None and src_xml.attrib.get('network') in netnames:
# Why, oh why, does the libvirt API want the XML??
self.ifaces.append(etree.tostring(iface).decode('utf-8'))
return(None) return(None)


def get_nets(self, netnames, chk = None):
if not self.ifaces and chk:
return(None)
_netnames = []
for iface in self.dom_xml.xpath('devices/interface'):
if iface.attrib.get('type') == 'network':
netname = src_xml.attrib.get('network')
src_xml = iface.find('source')
if src_xml is not None and netname in netnames and not chk:
# Why, oh why, does the libvirt API want the XML??
self.ifaces.append(etree.tostring(iface).decode('utf-8'))
elif src_xml is not None and netname in netnames:
_netnames.append(netname)
if chk:
pass # TODO: confirm that network is removed so we can remove the time.sleep() below.
return(None)


class VMManager(object): class VMManager(object):
def __init__(self, netname, restart_guests = True, uri = _def_uri, *args, **kwargs): def __init__(self, netname, restart_guests = True, uri = _def_uri, *args, **kwargs):
@ -104,6 +116,8 @@ class VMManager(object):
# Nice that we don't actually need to shut the machine down. # Nice that we don't actually need to shut the machine down.
# Here be dragons, though, if the OS doesn't understand NIC hotplugging. # Here be dragons, though, if the OS doesn't understand NIC hotplugging.
domnet.dom.detachDeviceFlags(iface_xml, flags = _ifaceflags) domnet.dom.detachDeviceFlags(iface_xml, flags = _ifaceflags)
# TODO: modify DomainNetwork so we can check if an interface is removed or not. How?
time.sleep(3)
domnet.dom.attachDeviceFlags(iface_xml, flags = _ifaceflags) domnet.dom.attachDeviceFlags(iface_xml, flags = _ifaceflags)
self._disconnect() self._disconnect()
if not doms: if not doms: