def configure(self):
# (dscannell) import the libvirt module to ensure that the the
# libvirt flags can be read in.
from nova.virt.libvirt import connection as libvirt_connection
self.configure_path_permissions()
self.libvirt_conn = libvirt_connection.get_connection(False)
config.MANAGEMENT['connection_url'] = self.libvirt_conn.uri
select_hypervisor('libvirt')
def get_connection(read_only=False):
"""
Returns an object representing the connection to a virtualization
platform, or to an on-demand bare-metal provisioning platform.
This could be :mod:`nova.virt.fake.FakeConnection` in test mode,
a connection to KVM, QEMU, or UML via :mod:`libvirt_conn`, or a connection
to XenServer or Xen Cloud Platform via :mod:`xenapi`. Other platforms are
also supported.
Any object returned here must conform to the interface documented by
:mod:`FakeConnection`.
**Related flags**
:connection_type: A string literal that falls through an if/elif structure
to determine what virtualization mechanism to use.
Values may be
* fake
* libvirt
* xenapi
* vmwareapi
* baremetal
"""
# TODO(termie): maybe lazy load after initial check for permissions
# TODO(termie): check whether we can be disconnected
t = FLAGS.connection_type
if t == 'fake':
conn = fake.get_connection(read_only)
elif t == 'libvirt':
conn = libvirt_conn.get_connection(read_only)
elif t == 'xenapi':
conn = xenapi_conn.get_connection(read_only)
elif t == 'vmwareapi':
conn = vmwareapi_conn.get_connection(read_only)
elif t == 'baremetal':
conn = proxy.get_connection(read_only)
else:
raise Exception('Unknown connection type "%s"' % t)
if conn is None:
LOG.error(_('Failed to open connection to underlying virt platform'))
sys.exit(1)
return utils.check_isinstance(conn, driver.ComputeDriver)
def configure(self):
# (dscannell) import the libvirt module to ensure that the the
# libvirt flags can be read in.
from nova.virt.libvirt import connection as libvirt_connection
self.configure_path_permissions()
openstack_user = self.determine_openstack_user()
if isinstance(openstack_user, str):
passwd = pwd.getpwnam(openstack_user)
else:
passwd = pwd.getpwuid(openstack_user)
self.openstack_uid = passwd.pw_uid
self.openstack_gid = passwd.pw_gid
self.libvirt_conn = libvirt_connection.get_connection(False)
config.MANAGEMENT['connection_url'] = self.libvirt_conn.uri
select_hypervisor('libvirt')
def get_connection(read_only=False):
"""
Returns an object representing the connection to a virtualization
platform.
This could be :mod:`nova.virt.fake.FakeConnection` in test mode,
a connection to KVM, QEMU, or UML via :mod:`libvirt_conn`, or a connection
to XenServer or Xen Cloud Platform via :mod:`xenapi`.
Any object returned here must conform to the interface documented by
:mod:`FakeConnection`.
**Related flags**
:connection_type: A string literal that falls through a if/elif structure
to determine what virtualization mechanism to use.
Values may be
* fake
* libvirt
* xenapi
"""
# TODO(termie): maybe lazy load after initial check for permissions
# TODO(termie): check whether we can be disconnected
t = FLAGS.connection_type
if t == 'fake':
conn = fake.get_connection(read_only)
elif t == 'libvirt':
conn = libvirt_conn.get_connection(read_only)
elif t == 'xenapi':
conn = xenapi_conn.get_connection(read_only)
elif t == 'hyperv':
conn = hyperv.get_connection(read_only)
elif t == 'vmwareapi':
conn = vmwareapi_conn.get_connection(read_only)
elif t == 'openvz':
conn = openvz_conn.get_connection(read_only)
else:
raise Exception('Unknown connection type "%s"' % t)
if conn is None:
LOG.error(_('Failed to open connection to the hypervisor'))
sys.exit(1)
return utils.check_isinstance(conn, driver.ComputeDriver)
