[openstack-dev] [neutron] Should we document the using of "device:owner" of the PORT ?
mkolesni at redhat.com
Thu Jul 16 04:22:06 UTC 2015
----- Original Message -----
> Yes please.
> This would be a good starting point.
> I also think that the ability of editing it, as well as the value it could be
> set to, should be constrained.
FYI the oVirt project uses this field to identify ports it creates and manages.
So if you're going to constrain it to something, it should probably be configurable so that managers other than Nova can continue to use Neutron.
> As you have surely noticed, there are several code path which rely on an
> appropriate value being set in this attribute.
> This means a user can potentially trigger malfunctioning by sending PUT
> requests to edit this attribute.
> Summarizing, I think that document its usage is a good starting point, but I
> believe we should address the way this attribute is exposed at the API layer
> as well.
> On 13 July 2015 at 11:52, Wang, Yalei < yalei.wang at intel.com > wrote:
> > Hi all,
> > The device:owner the port is defined as a 255 byte string, and is widely
> > used
> > now, indicating the use of the port.
> > Seems we can fill it freely, and user also could update/set it from cmd
> > line(port-update $PORT_ID --device_owner), and I don’t find the guideline
> > for using.
> > What is its function? For indicating the using of the port, and seems
> > horizon
> > also use it to show the topology.
> > And nova really need it editable, should we at least document all of the
> > possible values into some guide to make it clear? If yes, I can do it.
> > I got these using from the code(maybe not complete, pls point it out):
> > From constants.py,
> > DEVICE_OWNER_ROUTER_HA_INTF = "network:router_ha_interface"
> > DEVICE_OWNER_ROUTER_INTF = "network:router_interface"
> > DEVICE_OWNER_ROUTER_GW = "network:router_gateway"
> > DEVICE_OWNER_FLOATINGIP = "network:floatingip"
> > DEVICE_OWNER_DHCP = "network:dhcp"
> > DEVICE_OWNER_DVR_INTERFACE = "network:router_interface_distributed"
> > DEVICE_OWNER_AGENT_GW = "network:floatingip_agent_gateway"
> > DEVICE_OWNER_ROUTER_SNAT = "network:router_centralized_snat"
> > DEVICE_OWNER_LOADBALANCER = "neutron:LOADBALANCER"
> > And from debug_agent.py
> > DEVICE_OWNER_NETWORK_PROBE = 'network:probe'
> > DEVICE_OWNER_COMPUTE_PROBE = 'compute:probe'
> > And setting from nova/network/neutronv2/api.py,
> > 'compute:%s' % instance.availability_zone
> > Thanks all!
> > /Yalei
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