feat(ops/nixos): Add 'rebuilder' helper script

This script rebuilds & activates system configuration based on the
hostname.

Currently since there is only one host this isn't particularly
interesting.
This commit is contained in:
Vincent Ambo 2020-01-04 22:48:52 +00:00
parent 63dc41bcf3
commit 85ee07457c
4 changed files with 33 additions and 5 deletions

View file

@ -1,3 +1,4 @@
# TODO(tazjin): rename 'pkgs' -> 'depot'?
{ pkgs, ... }:
let
@ -9,7 +10,30 @@ let
foldl' lib.recursiveUpdate {} (map (c: c config) configs)
);
}).system;
in {
# TODO(tazjin): rename 'pkgs' -> 'depot'?
nuggetSystem = systemFor [ pkgs.ops.nixos.nugget ];
rebuilder = pkgs.third_party.writeShellScriptBin "rebuilder" ''
set -ue
if [[ $EUID -ne 0 ]]; then
echo "Oh no! Only root is allowed to rebuild the system!" >&2
exit 1
fi
case $HOSTNAME in
nugget)
echo "Rebuilding NixOS for //ops/nixos/nugget"
system=$(nix-build -E '(import <depot> {}).ops.nixos.nuggetSystem' --no-out-link)
;;
*)
echo "$HOSTNAME is not a known NixOS host!" >&2
exit 1
;;
esac
nix-env -p /nix/var/nix/profiles/system --set $system
$system/bin/switch-to-configuration switch
'';
in {
inherit nuggetSystem rebuilder;
}