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-rw-r--r--krebs/4lib/infest/prepare.sh76
1 files changed, 74 insertions, 2 deletions
diff --git a/krebs/4lib/infest/prepare.sh b/krebs/4lib/infest/prepare.sh
index 0bfc49380..b3824c7d4 100644
--- a/krebs/4lib/infest/prepare.sh
+++ b/krebs/4lib/infest/prepare.sh
@@ -1,6 +1,9 @@
#! /bin/sh
set -efu
+nix_url=https://nixos.org/releases/nix/nix-1.10/nix-1.10-x86_64-linux.tar.bz2
+nix_sha256=504f7a3a85fceffb8766ae5e1005de9e02e489742f5a63cc3e7552120b138bf4
+
prepare() {(
if test -e /etc/os-release; then
. /etc/os-release
@@ -33,6 +36,13 @@ prepare() {(
;;
esac
;;
+ nixos)
+ case $(cat /proc/cmdline) in
+ *' root=LABEL=NIXOS_ISO '*)
+ prepare_nixos_iso "$@"
+ exit
+ esac
+ ;;
esac
elif test -e /etc/centos-release; then
case $(cat /etc/centos-release) in
@@ -70,7 +80,25 @@ prepare_debian() {
prepare_common
}
-prepare_common() {
+prepare_nixos_iso() {
+ mountpoint /mnt
+
+ type git 2>/dev/null || nix-env -iA nixos.git
+
+ mkdir -p /mnt/"$target_path"
+ mkdir -p "$target_path"
+
+ if ! mountpoint "$target_path"; then
+ mount --rbind /mnt/"$target_path" "$target_path"
+ fi
+
+ mkdir -p bin
+ rm -f bin/nixos-install
+ cp "$(type -p nixos-install)" bin/nixos-install
+ sed -i "s@^NIX_PATH=\"[^\"]*\"@NIX_PATH=$target_path@" bin/nixos-install
+}
+
+prepare_common() {(
if ! getent group nixbld >/dev/null; then
groupadd -g 30000 -r nixbld
@@ -133,6 +161,50 @@ prepare_common() {
mkdir -p /mnt/nix
mount --bind /nix /mnt/nix
fi
-}
+
+ #
+ # install nix
+ #
+
+ # install nix on host (cf. https://nixos.org/nix/install)
+ if ! test -e /root/.nix-profile/etc/profile.d/nix.sh; then
+ (
+ verify() {
+ printf '%s %s\n' $nix_sha256 $(basename $nix_url) | sha256sum -c
+ }
+ if ! verify; then
+ curl -C - -O "$nix_url"
+ verify
+ fi
+ )
+ nix_src_dir=$(basename $nix_url .tar.bz2)
+ tar jxf $nix_src_dir.tar.bz2
+ $nix_src_dir/install
+ fi
+
+ . /root/.nix-profile/etc/profile.d/nix.sh
+
+ for i in \
+ bash \
+ coreutils \
+ # This line intentionally left blank.
+ do
+ if ! nix-env -q $i | grep -q .; then
+ nix-env -iA nixpkgs.pkgs.$i
+ fi
+ done
+
+ # install nixos-install
+ if ! type nixos-install 2>/dev/null; then
+ nixpkgs_expr='import <nixpkgs> { system = builtins.currentSystem; }'
+ nixpkgs_path=$(find /nix/store -mindepth 1 -maxdepth 1 -name *-nixpkgs-* -type d)
+ nix-env \
+ --arg config "{ nix.package = ($nixpkgs_expr).nix; }" \
+ --arg pkgs "$nixpkgs_expr" \
+ --arg modulesPath 'throw "no modulesPath"' \
+ -f $nixpkgs_path/nixpkgs/nixos/modules/installer/tools/tools.nix \
+ -iA config.system.build.nixos-install
+ fi
+)}
prepare "$@"