forked from Mirrors/nixos-infect
65 lines
2.5 KiB
Markdown
65 lines
2.5 KiB
Markdown
This script aims to install NixOS on Digital Ocean droplets
|
|
(starting from one of the distros that Digital Ocean supports out of the box)
|
|
|
|
These are the only supported Digital Ocean images:
|
|
|
|
- Fedora 24 x64
|
|
- Ubuntu 16.04 x64
|
|
- Debian 8.5 x64
|
|
|
|
It has also been successfully tested on OVH Virtual Private Servers (with debian)
|
|
|
|
YMMV with any other hoster + image combination.
|
|
|
|
nixos-infect is so named because of the high likelihood of rendering a system
|
|
inoperable. Use with caution and preferably only on newly-provisioned
|
|
systems.
|
|
|
|
*WARNING NB*: This script wipes out the targeted host's root filesystem when it
|
|
runs to completion. Any errors halt execution. It's advised to run with
|
|
`bash -x` to help debug, as often a failed run leaves the system in an
|
|
inconsistent state, requiring a rebuild (in DigitalOcean panel: Droplet
|
|
Settings -> "Destroy" -> "Rebuild from original").
|
|
|
|
*TO USE:*
|
|
- Add any custom config you want (see notes below)
|
|
- Deploy the droplet indicated at the top of the file, enable ipv6, add your ssh key
|
|
- cat customConfig.optional nixos-infect | ssh root@targethost
|
|
|
|
Alternatively, use the user data mechamism by supplying the lines between the following
|
|
cat and EOF in the Digital Ocean Web UI (or HTTP API):
|
|
|
|
```yaml
|
|
#cloud-config
|
|
|
|
runcmd:
|
|
- curl https://raw.githubusercontent.com/elitak/nixos-infect/master/nixos-infect | NIX_CHANNEL=nixos-17.03 bash 2>&1 | tee /tmp/infect.log
|
|
```
|
|
Potential tweaks:
|
|
- `/etc/nixos/{,hardware-}configuration.nix`: rudimentary mostly static config
|
|
- `/etc/nixos/networking.nix`, networking settings determined at runtime tweak
|
|
if no ipv6, different number of adapters, etc.
|
|
|
|
```yaml
|
|
#cloud-config
|
|
write_files:
|
|
- path: /etc/nixos/host.nix
|
|
permissions: '0644'
|
|
content: |
|
|
{pkgs, ...}:
|
|
{
|
|
environment.systemPackages = with pkgs; [ vim ];
|
|
}
|
|
runcmd:
|
|
- curl https://raw.githubusercontent.com/elitak/nixos-infect/master/nixos-infect | NIXOS_IMPORT=./host.nix NIX_CHANNEL=nixos-17.03 bash 2>&1 | tee /tmp/infect.log
|
|
|
|
```
|
|
|
|
Motivation for this script: nixos-assimilate should supplant this script
|
|
entirely, if it's ever completed. nixos-in-place was quite broken when I
|
|
tried it, and also took a pretty janky approach that was substantially more
|
|
complex than this (although it supported more platforms): it didn't install
|
|
to root (/nixos instead), left dregs of the old filesystem (almost always
|
|
unnecessary since starting from a fresh deployment), and most importantly,
|
|
simply didn't work for me! (old system was being because grub wasnt properly
|
|
reinstalled)
|