# LXC
Docs for LXC things.

## Creating a new NixOS LXC container
### Build the base image
```
cd lxc/
nix build ".#template"
```
Take the output of that, and import it into Proxmox.

### Create the container from the image
Do a normal container setup, without IP setup.

Add the following to `/etc/pve/lxc/ID.conf` for Tailscale to work:
```
lxc.cgroup2.devices.allow: c 10:200 rwm
lxc.mount.entry: /dev/net/tun dev/net/tun none bind,create=file
```

### Make an entry in this repository for the wanted container
A bare minimum setup, meaning a host with:
 * the LXC profile,
 * the base role,
 * IP map in util,
 * secrets configured

Get the age key for the host with:
```
nix-shell -p ssh-to-age --run 'ssh-keyscan 10.1.2.2 | ssh-to-age'
```
That might fail at first. If it does, ssh once into the container to trust the
fingerprint and try again.

### Rebuild the real container on top of the base, the base is available at 10.1.2.2
Might need two rebuilds.

### Profit
And done!