[lxc-users] LAN for LXD containers (with multiple LXD servers)?

[Ron Kelley]

So, just for clarity, you are saying each LXD server will have no separate network connection for the containers.  Thus, all containers are private to the LXD server, and any outbound traffic must traverse the container server interface.  Is this correct?  If so, sorry, I must have missed this requirement in your initial email.



On Sep 18, 2016, at 9:41 AM, Tomasz Chmielewski <mangoo at wpkg.org> wrote:

On 2016-09-18 22:14, Ron Kelley wrote:
> (Long reply follows…)
> Personally, I think you need to look at the big picture for such
> deployments.  From what I read below, you are asking, “how do I extend
> my layer-2 subnets between data centers such that container1 in Europe
> can talk with container6 in Asia, etc”.  If this is true, I think you
> need to look at deploying data center hardware (servers with multiple
> NICs, IPMI/DRAC/iLO interfaces) with proper L2/L3 routing (L2TP/IPSEC,
> etc).  And, you must look at how your failover services will work in
> this design.  It’s easy to get a couple of servers working with a
> simple design, but those simple designs tend to go to production very
> fast without proper testing and design.

Well, it's not only about deploying on "different continents".

It can be also in the same datacentre, where the hosting doesn't give you a LAN option.

For example - Amazon AWS, same region, same availability zone.

The servers will have "private" addresses like 10.x.x.x, traffic there will be private to your servers, but there will be no LAN. You can't assign your own LAN addresses (10.x.x.x).

This means, while you can launch several LXD containers on every of these servers - but their "LAN" will be limited per each LXD server (unless we do some special tricks).

Some other hostings offer a public IP, or several public IPs per servers, in the same datacentre, but again, no LAN.


Tomasz Chmielewski
https://lxadm.com