Assigning VLANs to LXC containers connected to OpenVswitch

gistfile1.md

I followed the instructions from http://blog.scottlowe.org/2014/01/23/automatically-connecting-lxc-to-open-vswitch/ but wasn't happy with the script

# pip install shyaml

# cat /var/lib/lxc/vm1/config

# Distribution configuration
lxc.include = /usr/share/lxc/config/ubuntu.common.conf
lxc.arch = x86_64

# Container specific configuration
lxc.rootfs = /var/lib/lxc/vm1/rootfs
lxc.utsname = vm1

# Network configuration
lxc.network.type = veth
lxc.network.veth.pair = veth-vmone

lxc.network.script.up = /etc/lxc/ovsup
lxc.network.script.down = /etc/lxc/ovsdown

# cat /etc/lxc/ovsup

#!/bin/bash

BRIDGE=`cat /etc/lxc/ovs_cfg | shyaml get-value $1.bridge`
VLAN=`cat /etc/lxc/ovs_cfg | shyaml get-value $1.vlan`

ovs-vsctl --may-exist add-br $BRIDGE
ovs-vsctl --if-exists del-port $BRIDGE $5
ovs-vsctl --may-exist add-port $BRIDGE $5
ovs-vsctl set port $5 tag=$VLAN

# cat /etc/lxc/ovsdown

#!/bin/bash

BRIDGE=`cat /etc/lxc/ovs_cfg | shyaml get-value $1.bridge`

ovs-vsctl --if-exists del-port $BRIDGE $5

# cat /etc/lxc/cat ovs_cfg

vm1:
  bridge: containers0
  vlan: 2