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LXC
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Appunti

  :Author: Andrea Manni
  :Copyright: GFDL
  :Version: 0.1

Questi appunti sono ad uso privato.

.. sectnum::

.. contents:: Indice degli argomenti
.. |date| date::

Generato il |date| con: http://docutils.sourceforge.net/rst.html

Links
==========

* https://wiki.debian.org/LXC#Supported_versions_of_LXC
* https://linuxcontainers.org/lxc/getting-started/


Usage
=======

::

    lxc-create -t download -n stretch
            // Creare un LXC

    lxc-start -n stable -d
    lxc-attach -n stretch
    lxc-stop -n stable -d

    lxc-destroy -n stable



Networking
===============

Fin tanto che e' disponibile lxc-net e' tutto abbastanza automatico, l'host gestisce un bridge e il client parte con un dhcp-client.

/etc/default/lxc-net ::

    USE_LXC_BRIDGE="true"


/etc/lxc/default.conf ::
    
    lxc.network.type = veth
    lxc.network.link = lxcbr0
    lxc.network.flags = up
    lxc.network.hwaddr = 00:16:3e:xx:xx:xx


service lxc-net restart



Path dei containers:
    /var/lib/lxc/stretch/rootfs


OverlayFS
===============

Main guide: https://www.kernel.org/doc/Documentation/filesystems/overlayfs.txt

Esempio con un chroot::

    ls
      merged    stretch  upper  work
    mount -t overlay -o lowerdir=stretch/,upperdir=upper,workdir=work none merged

.. NOTE::
    workdir has to exist and be empty, colud be a hidden file


::
    mount -t overlay -o lowerdir=stretch/,upperdir=nrupper,workdir=.work none newroot