bootstrap fails with LXD provider when not using lxdbr0

[Andrew McDermott]

My host's network configuration is:

  $ cat /etc/network/interfaces

auto enp5s0
iface enp5s0 inet manual

auto br-enp5s0
iface br-enp5s0 inet static
    address 192.168.1.64/24
    bridge_ports enp5s0
    dns-nameservers 192.168.1.254
    dns-search home
    gateway 192.168.1.254

I ran:

  $ dpkg-reconfigure lxd

and used "br-enp5s0" as the bridge, configured no subnets and disabled IPv6.

  $ juju version
  2.0.0-xenial-amd64

Bootstrapping fails because it tries to connect to the lxd daemon on 192.168.1.254, which you can see from my network setup is my gateway address - there is no lxd listening there.

$ juju bootstrap lxd
Creating Juju controller "lxd-localhost" on lxd/localhost
Looking for packaged Juju agent version 2.0.0 for amd64
To configure your system to better support LXD containers, please see: https://github.com/lxc/lxd/blob/master/doc/production-setup.md
Launching controller instance(s) on lxd/localhost...
 - juju-0f76ff-0 (arch=amd64)
Fetching Juju GUI 2.2.1
Waiting for address
Attempting to connect to 192.168.1.236:22
Logging to /var/log/cloud-init-output.log on the bootstrap machine
Running apt-get update
Running apt-get upgrade
Installing curl, cpu-checker, bridge-utils, cloud-utils, tmux
Fetching Juju agent version 2.0.0 for amd64
Installing Juju machine agent
Attempt 1 to download tools from https://streams.canonical.com/juju/tools/agent/2.0.0/juju-2.0.0-xenial-amd64.tgz...
tools from https://streams.canonical.com/juju/tools/agent/2.0.0/juju-2.0.0-xenial-amd64.tgz downloaded: HTTP 200; time 4.720s; size 22318456 bytes; speed 4728924.000 bytes/s Tools downloaded successfully.
3ce84f9af0e163f5188d1355dc2dc9fb43a1e992d58dc8af874b98bcccc3c0da /var/lib/juju/tools/2.0.0-xenial-amd64/tools.tar.gz
296662810fbd3d4f229d379d8d8be37dfff7fe9711a06be6a8b7dedc80b87907 /var/lib/juju/gui/gui.tar.bz2
2016-10-19 04:41:12 INFO juju.cmd supercommand.go:63 running jujud [2.0.0 gc go1.6.2]
2016-10-19 04:41:12 ERROR cmd supercommand.go:458 new environ: creating LXD client: Get https://192.168.1.254:8443/1.0: Unable to connect to: 192.168.1.254:8443
ERROR failed to bootstrap model: subprocess encountered error code 1

The following code will work for lxdbr0, but not other bridge configurations:

github.com/juju/juju/provider/lxd/environ_raw.go:

func getDefaultGateway(runCommand runCommandFunc) (string, error) {
 out, err := runCommand("ip", "route", "list", "match", "0/0")
 if err != nil {
  return "", errors.Trace(err)
 }
 if !strings.HasPrefix(string(out), "default via") {
  return "", errors.Errorf(`unexpected output from "ip route": %s`, out)
 }
 fields := strings.Fields(string(out))
 return fields[2], nil
}

[Gareth Woolridge (moon127)]

I ran into this too this morning, similarly I don't use lxdbr0 but have my lxd host setup to bridge to the local network with containers getting DHCP from my router.

Attached is my e/n/i, juju and lxd versions and full bootstrap output.

[Andrew McDermott (frobware)]

Adding the transcript I did to workaround this from a conversation on #juju-dev

  http://pastebin.ubuntu.com/23347682/