====== Ubuntu - LXD containers ======
====Basics====
The LXD container hypervisor. Info: [[https://www.ubuntu.com/containers/lxd]]


  * Install LXD:<code>apt-get install lxd</code>
  * Initialize LXD:<code>lxd init</code>

  * Create a new containter:<code>lxc launch ubuntu: <container-name></code><code>lxc launch images:centos/7/amd64 <container-name></code>
  * List containers:<code>lxc list
+---------+---------+--------------------------------+-----------------------------------------------+------------+-----------+
|  NAME   |  STATE  |              IPV4              |                     IPV6                      |    TYPE    | SNAPSHOTS |
+---------+---------+--------------------------------+-----------------------------------------------+------------+-----------+
| c1      | RUNNING | 1.2.3.4 (eth0)                 | fd42:dd7c:afec:9008:216:3eff:aaaa:aaaa (eth0) | PERSISTENT | 0         |  
+---------+---------+--------------------------------+-----------------------------------------------+------------+-----------+
| c2      | RUNNING | 1.2.3.5 (eth0)                 | fd42:dd7c:afec:9008:216:3eff:bbbb:bbbb (eth0) | PERSISTENT | 0         |
+---------+---------+--------------------------------+-----------------------------------------------+------------+-----------+
| c3      | RUNNING | 1.2.3.6 (eth0)                 | fd42:dd7c:afec:9008:216:3eff:cccc:cccc (eth0) | PERSISTENT | 0         |
+---------+---------+--------------------------------+-----------------------------------------------+------------+-----------+</code>
  * Modify DHCP range:<code>lxc network set lxdbr0 ipv4.dhcp.ranges 1.2.3.100-1.2.3.150</code>
  * Start shell in container:<code>lxc exec c1 bash</code>

====Bridge====
Configure an unused interface for bridging with containers.
  * Install bridge utilities:<code>apt install bridge-utils</code>
  * Configure bridge interface:<code>tee -a /etc/network/interfaces.d/br0 <<EOF
auto br0
iface br0 inet manual
 bridge_ports enp3s0
 bridge_stp off
 bridge_fd 0
 bridge_maxwait 0
EOF</code>
  * Show default settings:<code>lxc profile show default
config: {}
description: Default LXD profile
devices:
  eth0:
    nictype: bridged
    parent: lxdbr0
    type: nic
  root:
    path: /
    pool: default
    type: disk
name: default
used_by: []
</code>
  * Edit parent NIC:<code>lxc profile edit default</code>



{{tag>[linux containers lxc lxd ubuntu]}}