Re: Virtual Bridge "Network" for Sandbox

Thanks Laine, I will take a look at Open vSwitch, it looks interesting. I am a generalist, I need to know enough about a lot of things to get many different tasks done, but do not have the in depth knowledge required to "patch" anything.  If I manage to wrangle a working solution should I post it?

Needless to say I would be supportive of said feature being implemented by those more competent than I... Jocularity aside, thanks for the heads up on Open vSwitch. *Paul O'Rorke* On 2020-06-29 9:13 a.m., Laine Stump wrote: > On 6/29/20 11:01 AM, Paul O'Rorke wrote: >> Hi all, >> >> I couldn't find any documentation on this, hopefully someone can >> point me in the right direction. >> >> I recently set up a sand-boxed environment for our developers. There >> are domain controller(s), workstations and servers in there.  The >> whole thing is running on a single host using a "Virtual Network" >> defined in virt-manager on that host. >> >> Now I find I want to add more guests and there are not enough >> resources on this one host.  Can I somehow make this Virtual Network >> available to two hosts?  I do not want to move to a bridged network >> and have to physically join the two hosts with a discrete link when >> they are already on the same subnet at the host level. >> >> Is that possible? > > You might be able to this using OpenvSwitch (iow "probably can, but I > don't know the details" :-)) but libvirt doesn't have anything to set > it up for you; you would need to create and configure the OVS switch > outside of libvirt, then attach the libvirt guests to that switch > (using "<interface type='bridge'> ... <virtualport type='openvswitch'> > ...") > > I've idly thought about having this as a libvirt feature over the > years, but as I never have that many guests, it was never a personal > priority, and it wasn't immediately clear what was the best way to > handle, e.g. DHCP, and routing to the outside. Definitely "patches are > welcome" though :-) >