def pre_start(self):
virt_driver = self.cfg.get('nova', 'virt_driver')
if virt_driver == virsh.VIRT_TYPE:
virt_type = virsh.default(self.cfg.get('nova', 'libvirt_type'))
LOG.info("Checking that your selected libvirt virtualization type [%s] is working and running." % (virt_type))
if not virsh.virt_ok(virt_type, self.distro):
msg = ("Libvirt type %s for distro %s does not seem to be active or configured correctly, "
"perhaps you should be using %s instead." % (virt_type, self.distro, virsh.DEFAULT_VIRT))
raise exceptions.StartException(msg)
virsh.restart(self.distro)
def configure(self, component_dirs):
nova_conf = NovaConf()
#use more than once
hostip = self.cfg.get('host', 'ip')
#verbose on?
if self._getbool('verbose'):
nova_conf.add_simple('verbose')
#allow the admin api?
if self._getbool('allow_admin_api'):
nova_conf.add_simple('allow_admin_api')
#which scheduler do u want?
scheduler = self._getstr('scheduler')
if not scheduler:
scheduler = DEF_SCHEDULER
nova_conf.add('scheduler_driver', scheduler)
#setup network settings
self._configure_network_settings(nova_conf, component_dirs)
#setup nova volume settings
if self.volumes_enabled:
self._configure_vols(nova_conf)
#where we are running
nova_conf.add('my_ip', hostip)
#setup your sql connection
nova_conf.add('sql_connection', self.cfg.get_dbdsn('nova'))
#configure anything libvirt releated?
virt_driver = self._getstr('virt_driver')
if virt_driver == virsh.VIRT_TYPE:
libvirt_type = virsh.default(self._getstr('libvirt_type'))
self._configure_libvirt(libvirt_type, nova_conf)
#how instances will be presented
instance_template = self._getstr('instance_name_prefix') + self._getstr('instance_name_postfix')
nova_conf.add('instance_name_template', instance_template)
#???
nova_conf.add('osapi_compute_extension', 'nova.api.openstack.compute.contrib.standard_extensions')
#vnc settings
self._configure_vnc(nova_conf)
#where our paste config is
nova_conf.add('api_paste_config', self.paste_conf_fn)
#what our imaging service will be
self._configure_image_service(nova_conf)
#ec2 / s3 stuff
ec2_dmz_host = self._getstr('ec2_dmz_host')
if not ec2_dmz_host:
ec2_dmz_host = hostip
nova_conf.add('ec2_dmz_host', ec2_dmz_host)
nova_conf.add('s3_host', hostip)
#how is your rabbit setup?
nova_conf.add('rabbit_host', self.cfg.get('default', 'rabbit_host'))
nova_conf.add('rabbit_password', self.cfg.get("passwords", "rabbit"))
#where instances will be stored
instances_path = self._getstr('instances_path')
if not instances_path:
instances_path = sh.joinpths(self.component_root, 'instances')
self._configure_instances_path(instances_path, nova_conf)
#is this a multihost setup?
self._configure_multihost(nova_conf)
#enable syslog??
self._configure_syslog(nova_conf)
#handle any virt driver specifics
self._configure_virt_driver(nova_conf)
#now make it
conf_lines = sorted(nova_conf.generate())
complete_file = utils.joinlinesep(*conf_lines)
#add any extra flags in?
extra_flags = self._getstr('extra_flags')
if extra_flags:
full_file = [complete_file, extra_flags]
complete_file = utils.joinlinesep(*full_file)
return complete_file
def _clear_libvirt_domains(self):
virt_driver = self.cfg.get('nova', 'virt_driver')
if virt_driver == virsh.VIRT_TYPE:
inst_prefix = self.cfg.get('nova', 'instance_name_prefix')
libvirt_type = virsh.default(self.cfg.get('nova', 'libvirt_type'))
virsh.clear_libvirt_domains(libvirt_type, inst_prefix)
