107 lines
2.9 KiB
Nix
107 lines
2.9 KiB
Nix
{ config, pkgs, ... }:
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let
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microvms = {
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staging-data-hoarder = {
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flakeref = "git+file:///tmp/dvb-nix-config";
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};
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};
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realizeFlake = with pkgs; "${writeScriptBin "realize-flake" ''
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#! ${runtimeShell} -e
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NAME=$1
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if [ $NAME = "staging-data-hoarder" ]; then
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SRC_NIX_CONFIG=https://github.com/dump-dvb/nix-config.git
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SRC_DUMP_DVB=https://github.com/dump-dvb/dump-dvb.nix.git
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BRANCH=master
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DIR_NIX_CONFIG=dvb-nix-config
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DIR_DUMP_DVB=dvb-dump
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else
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echo "Do not know what to do"
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exit 0
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fi
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cd /tmp
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if [ -d $DIR_DUMP_DVB ]; then
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cd $DIR_DUMP_DVB
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git fetch origin
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git reset --hard origin/$BRANCH
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else
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git clone -b $BRANCH --single-branch $SRC_DUMP_DVB $DIR_DUMP_DVB
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cd $DIR_DUMP_DVB
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fi
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git config --global user.email "astro@spaceboyz.net"
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git config --global user.name "Updater"
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nix flake update --commit-lock-file
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cd /tmp
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if [ -d $DIR_NIX_CONFIG ]; then
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cd $DIR_NIX_CONFIG
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git fetch origin
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git reset --hard origin/$BRANCH
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else
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git clone -b $BRANCH --single-branch $SRC_NIX_CONFIG $DIR_NIX_CONFIG
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cd $DIR_NIX_CONFIG
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fi
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nix flake update --commit-lock-file --override-input dump-dvb /tmp/$DIR_DUMP_DVB
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''}/bin/realize-flake";
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in
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{
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microvm.autostart = builtins.attrNames microvms;
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systemd.services = {
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"microvm-update@" = {
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description = "Update MicroVMs automatically";
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after = [ "network-online.target" ];
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unitConfig.ConditionPathExists = "/var/lib/microvms/%i";
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serviceConfig = {
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Type = "oneshot";
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};
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path = with pkgs; [ nix git ];
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environment.HOME = config.users.users.root.home;
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scriptArgs = "%i";
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script = ''
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NAME=$1
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${realizeFlake} $NAME
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/run/current-system/sw/bin/microvm -Ru $NAME
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'';
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};
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} // builtins.foldl' (services: name: services // {
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"microvm-create-${name}" = {
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description = "Create MicroVM ${name} automatically";
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wantedBy = [ "microvms.target" ];
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after = [ "network-online.target" ];
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before = [
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"microvm-tap-interfaces@${name}.service"
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"microvm-virtiofsd@${name}.service"
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];
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unitConfig.ConditionPathExists = "!/var/lib/microvms/${name}";
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serviceConfig.Type = "oneshot";
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path = [ pkgs.git ];
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environment.HOME = config.users.users.root.home;
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scriptArgs = "${name}";
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script = ''
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${realizeFlake} ${name}
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/run/current-system/sw/bin/microvm -c ${name} -f "${microvms.${name}.flakeref}"
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'';
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};
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}) {} (builtins.attrNames microvms);
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systemd.timers = builtins.foldl' (timers: name: timers // {
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"microvm-update-${name}" = {
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wantedBy = [ "timers.target" ];
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timerConfig = {
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Unit = "microvm-update@${name}.service";
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# three times per hour
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OnCalendar = "*:0,20,40:00";
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Persistent = true;
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};
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};
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}) {} (builtins.attrNames microvms);
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}
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