Install juju on the main network interface

Question

When I install Juju, system creates my strange network interface and runs services on it, but I need to install Juju on eth0 interface. How Can I do that?

Answer 1

I'm assuming that you're running a local install of Juju that runs its instances on LXC containers. By default, Juju on LXC uses the LXC bridge (lxcbr0), but we have the option of configuring LXC to use a bridge that also has eth0 interface on it.

I assume that your LAN exists within the 192.168.1.0/24 subnet, and your eth0 interface has IP address of 192.168.1.2.

You will need to set up bridging:

1) Edit /etc/network/interfaces

auto br0
iface br0 inet static
bridge_ports eth0
address 192.168.1.2
broadcast 192.168.1.255
netmask 255.255.255.0
gateway 192.168.1.1
bridge_stp off
bridge_fd 0
bridge_maxwait 0

2) Configure LXC to use your newly created bridge interface. Edit /etc/lxc/lxc.conf:

lxc.network.type=veth
lxc.network.link=br0
lxc.network.flags=up

3) Change the LXC network configuration. Edit /etc/default/lxc:

LXC_BRIDGE="br0"
LXC_ADDR="192.168.1.2"
LXC_NETMASK="255.255.255.0"
LXC_NETWORK="192.168.1.0/24"
LXC_DHCP_RANGE="192.168.1.200,192.168.1.254"
LXC_DHCP_MAX="54"

Restart LXC and networking and your Juju instances should be accessible by other machines on the network.