[Bug 1563026] Re: LXC/LXD installed by default on Ubuntu server

[lightraven24]

Frankly, whether or not I can run 100 gallion Ubuntu servers with LXD on
my server with KVM/Xen/a host which needs no virtualization at all on it
is irrevelant.

On a brand-new server install (which I prefer to keep to an absolute
minimal) on bare-metal on Xenial, I now have:

- A bridge that does nothing for me
- By extension, a stateful firewall with iptables which
a) Could have a negative impact on high throughput hosts
b) Gets in the way of hosts which have their firewalls statically configured with Puppet/Ansible/etc
- dnsmasq which is running a DNS and DHCP service

Do we really need those things on a m1.tiny instance running on AWS?

Even purging LXD on a host causes stuff to be left behind:

Removing lxc-templates (2.0.0~rc12-0ubuntu1) ...
Removing ubuntu-server (1.350) ...
Removing lxd (2.0.0~rc5-0ubuntu1) ...
Warning: Stopping lxd.service, but it can still be activated by:
  lxd.socket
Purging configuration files for lxd (2.0.0~rc5-0ubuntu1) ...
Failed to stop lxd.service: Unit lxd.service not loaded.
dpkg: warning: while removing lxd, directory '/var/lib/lxd' not empty so not removed
Removing lxc (2.0.0~rc12-0ubuntu1) ...
Removing lxc1 (2.0.0~rc12-0ubuntu1) ...
Removing lxc dnsmasq configuration
Purging configuration files for lxc1 (2.0.0~rc12-0ubuntu1) ...
dpkg: warning: while removing lxc1, directory '/etc/lxc' not empty so not removed

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https://bugs.launchpad.net/bugs/1563026

Title:
  LXC/LXD installed by default on Ubuntu server

Status in ubuntu-meta package in Ubuntu:
  Opinion

Bug description:
  When performing a new installation of Ubuntu server 16.04 Beta 2, LXC
  and LXD are included in the default packages even when "Virtual
  Server" is not selected as an installation task. This brings in all of
  the required dependencies as well, obviously, which seems like it is
  not the best default behavior to have.

  When installing from a non-UEFI boot, the user may select "minimal
  install" from the "F4" menu. This menu is not available from the UEFI
  grub environment, making it apparently impossible to select an
  installation that does not include the LXC and LXD suite by default.

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