Re: container as alternative to virtual machine: systemd-nspawn

[Jan-Peter Voigt]

Hi Fredrico,

I have a similar setup running using LXC on my ubuntu machine. I really 
like using containers to avoid cluttering my work-environment with 
build-dependencies. There's a nice tutorial for "unprivileged" containers:
https://www.stgraber.org/2014/01/17/lxc-1-0-unprivileged-containers/
You only have to add your user to the group |lxc-dnsmasq.|
Then you can create a container with "lxc-create -t download -n lilydev 
-- -d ubuntu -r xenial -a amd64". Then start it with "lxc-start -n 
lilydev" and attach to it with "lxc-attach -n lilydev". Now you can 
install anything you need with apt, create the user and go on, like 
Frederico already explained.
Using LXC or systemd-container is (IMO) a matter of taste - I chose LXC, 
because I found Stéphane Grabers tutorial.
What I'd like to have now, is GUB running that container.
I'll report, if I get it working.

Jan-Peter

Am 29.06.2016 um 18:27 schrieb Federico Bruni:
> This setup may be interesting for Linux users who want to avoid 
> virtual machines.
> I started it today so I haven't tested it much yet.
>
> The size of OS is small initially, circa 380MB. But when you install 
> the LilyPond dependencies it grows up significantly.
>
>
> # Instructions
>
> Install the packages `systemd-container` and `debootstrap`.
>
> Run as root the following commands (adapt it to your architecture):
>    cd <path/to/dir>
>    mkdir LilyDev
>    debootstrap --arch=amd64 stable DebianJessie/ 
> http://httpredir.debian.org/debian/
>
> Start the container, set the root password
>
>    systemd-nspawn -D LilyDev
>    passwd
>
> and add a normal user:
>
>    adduser lilydev
>    id lilydev
>
> It's important that the user ID in your guest is the same as the user 
> ID in
> your host system. This allows to edit the files in the 
> LilyDev/home/lilydev
> directory either in your host or in your guest.
>
> Now you can boot the container (need to be run as root):
>
>    systemd-nspawn -bD LilyDev
>
> Log in as root and install the dependencies, as described in the 
> Contributor Guide.
>
> When you've done, change to the normal user:
>
>    su lilydev
>
> and you are ready to compile lilypond.
>
>
>
>
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