def clear_domains(self, virt_type, inst_prefix):
libvirt = importer.import_module('libvirt')
if not libvirt:
LOG.warn("Could not clear out libvirt domains, libvirt not available for python.")
return
virt_protocol = LIBVIRT_PROTOCOL_MAP.get(virt_type)
if not virt_protocol:
LOG.warn("Could not clear out libvirt domains, no known protocol for virt type %r" % (virt_type))
return
with sh.Rooted(True):
LOG.info("Attempting to clear out leftover libvirt domains using protocol %r" % (virt_protocol))
try:
self.restart_service()
except excp.ProcessExecutionError as e:
LOG.warn("Could not restart libvirt due to: %s" % (e))
return
try:
conn = libvirt.open(virt_protocol)
except libvirt.libvirtError as e:
LOG.warn("Could not connect to libvirt using protocol %r due to: %s" % (virt_protocol, e))
return
with contextlib.closing(conn) as ch:
try:
defined_domains = ch.listDefinedDomains()
kill_domains = list()
for domain in defined_domains:
if domain.startswith(inst_prefix):
kill_domains.append(domain)
if kill_domains:
LOG.info("Found %s old domains to destroy (%s)" % (len(kill_domains), ", ".join(sorted(kill_domains))))
for domain in sorted(kill_domains):
self._destroy_domain(ch, domain)
except libvirt.libvirtError, e:
LOG.warn("Could not clear out libvirt domains due to %s" % (e))
def _destroy_domain(self, conn, dom_name):
libvirt = importer.import_module('libvirt')
try:
dom = conn.lookupByName(dom_name)
LOG.debug("Destroying domain (%r) (id=%s) running %r" % (dom_name, dom.ID(), dom.OSType()))
dom.destroy()
dom.undefine()
except libvirt.libvirtError as e:
LOG.warn("Could not clear out libvirt domain %r due to: %s" % (dom_name, e))
def _destroy_domain(self, conn, dom_name):
libvirt = importer.import_module('libvirt')
try:
dom = conn.lookupByName(dom_name)
LOG.debug("Destroying domain (%r) (id=%s) running %r" %
(dom_name, dom.ID(), dom.OSType()))
dom.destroy()
dom.undefine()
except libvirt.libvirtError as e:
LOG.warn("Could not clear out libvirt domain %r due to: %s" %
(dom_name, e))
def clear_domains(self, virt_type, inst_prefix):
libvirt = importer.import_module('libvirt')
if not libvirt:
LOG.warn(
"Could not clear out libvirt domains, libvirt not available for python."
)
return
virt_protocol = LIBVIRT_PROTOCOL_MAP.get(virt_type)
if not virt_protocol:
LOG.warn(
"Could not clear out libvirt domains, no known protocol for virt type %r"
% (virt_type))
return
with sh.Rooted(True):
LOG.info(
"Attempting to clear out leftover libvirt domains using protocol %r"
% (virt_protocol))
try:
self.restart_service()
except excp.ProcessExecutionError as e:
LOG.warn("Could not restart libvirt due to: %s" % (e))
return
try:
conn = libvirt.open(virt_protocol)
except libvirt.libvirtError as e:
LOG.warn(
"Could not connect to libvirt using protocol %r due to: %s"
% (virt_protocol, e))
return
with contextlib.closing(conn) as ch:
try:
defined_domains = ch.listDefinedDomains()
kill_domains = list()
for domain in defined_domains:
if domain.startswith(inst_prefix):
kill_domains.append(domain)
if kill_domains:
LOG.info("Found %s old domains to destroy (%s)" %
(len(kill_domains), ", ".join(
sorted(kill_domains))))
for domain in sorted(kill_domains):
self._destroy_domain(ch, domain)
except libvirt.libvirtError, e:
LOG.warn("Could not clear out libvirt domains due to %s" %
(e))
