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ubuntu_lxc_lxd

Ubuntu - LXD containers

Basics

The LXD container hypervisor. Info: https://www.ubuntu.com/containers/lxd

  • Install LXD:
    apt-get install lxd
  • Initialize LXD:
    lxd init
  • Create a new containter:
    lxc launch ubuntu: <container-name>
    lxc launch images:centos/7/amd64 <container-name>
  • List containers:
    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         |
    +---------+---------+--------------------------------+-----------------------------------------------+------------+-----------+
  • Modify DHCP range:
    lxc network set lxdbr0 ipv4.dhcp.ranges 1.2.3.100-1.2.3.150
  • Start shell in container:
    lxc exec c1 bash

Bridge

Configure an unused interface for bridging with containers.

  • Install bridge utilities:
    apt install bridge-utils
  • Configure bridge interface:
    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
  • Show default settings:
    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: []
  • Edit parent NIC:
    lxc profile edit default
ubuntu_lxc_lxd.txt · Last modified: 2017/10/11 09:48 by admin