Hello! When using juju 2.0 on maas 1.9 or 2.0, you should get lxd containers provisioned with as many interfaces as their host machine has, because we're creating bridges on all configured host interfaces at initial boot (e.g. eth0 becomes br-eth0, ens4.250 - br-ens4.250 and so on). Nothing needs configuring to get this behaviour, but there's a caveat:
In order for the above to work, there's a limitation currently being addressed - all interfaces on the host machine in MAAS need to be linked to a subnet and have an IP address configured - either as Static or Auto, but not DHCP or Unconfigured. Otherwise the process of allocating addresses for the container (represented as a MAAS Device, visible on the host node's details page in MAAS UI under Containers and VMs) can fail half way through and Juju will instead fall back to a the single NIC LXD default profile, using lxdbr0 on a local subnet. You can tell whether this happened, because there will be a WARNING in /var/log/juju/machine-0.log on the bootstrap machine, like: `failed to prepare container "0/lxd/0" network config: ...` describing the underlying error encountered. Please note, the above limitation will be gone very soon - likely beta18, not beta17 scheduled for release this week. In that upcoming beta, unlinked or unconfigured host machine interfaces won't prevent the multi-NIC container provisioning and address allocation - Juju will just allocate addresses where it can, leaving the rest unconfigured, and not falling back to using LXD default profile's lxdbr0. HTH, Dimiter On 08/31/2016 10:32 PM, Chance Ellis wrote: > Hello, > > > > I am running juju 2.0beta16 on trusty. I have a maas 2.0 rc4 cloud > bootstrapped. > > > > I am able to deploy services to lxd containers on xenial, but when I do > so, the container’s NIC is attached to lxdbr0 which seems to get some > arbitrary IP segment which in turn gives the container an IP from the > same segment. Is there a way I can instruct juju to specify the > bridge(s) I would like the container to use during deployment? > > > > Thanks! > Chance Ellis > > > > > > > -- Dimiter Naydenov <dimiter.nayde...@canonical.com> Juju Core Sapphire team <http://juju.ubuntu.com>
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