OpenStackNova启动实例流程

1、OpenStackNova启动实例流程 cd /tmp/euca-add-keypair test test.pemeuca-run-instances -k test -t m1.tiny ami-tinydef run_instances(self, context, *kwargs):.instances = pute_api.create(context,instance_type=instance_types.get_by_type(kwargs.get(instance_type, None),image_id=kwargsimage_id,. LOG.debug(_(Castin

2、g to scheduler for %(pid)s/%(uid)ss instance %(instance_id)s) % locals()rpc.cast(context,FLAGS.scheduler_topic,method: run_instance,availability_zone: availability_zone) LOG.debug(_(Casting to %(topic)s %(host)s for %(method)s) % locals()def run_instance(self, context, instance_id, *_kwargs):Launch

3、a new instance with specified options. instance-00000001hvm/opt/novascript/trunk/nova/./instances/instance-00000001/kernelroot=/dev/vda console=ttyS0 *filter-A nova-inst-1 -s 54 -p udp -sport 67 -dport 68-A nova-inst-1 -j nova-ipv4-fallback-A nova-sg-1 -p tcp -s /27 -m multiport -dports 1:65535 -j A

4、CCEPT-A nova-sg-1 -p udp -s /27 -m multiport -dports 1:65535 -j ACCEPT-A nova-sg-1 -p icmp -s /27 -m icmp -icmp-type 1/65535 -j ACCEPTCOMMITdef _create_image(self, inst, libvirt_xml, suffix=, disk_images=None):.disk.inject_data(basepath(disk), key, net,partition=target_partition,nbd=FLAGS.use_cow_images)#raise exception.Error(_(nbd device %s did not show up) % device)out, err = utils.execute(sudo tune2fs -c 0 -i 0 %s % mapped_device)sshdir = os.path.join(fs, root, .ssh)utils.execute(sudo chmod 700 %s % sshdir)keyfile = os.path.join(sshdir,