mirror of
https://github.com/NixOS/nixpkgs.git
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4f0dadbf38
After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.
Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.
A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.
This commit was automatically created and can be verified using
nix-build a08b3a4d19.tar.gz \
--argstr baseRev b32a094368
result/bin/apply-formatting $NIXPKGS_PATH
115 lines
3.5 KiB
Nix
115 lines
3.5 KiB
Nix
{
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config,
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pkgs,
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lib,
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...
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}:
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with lib;
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let
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cfg = config.virtualisation.digitalOcean;
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defaultConfigFile = pkgs.writeText "digitalocean-configuration.nix" ''
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{ modulesPath, lib, ... }:
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{
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imports = lib.optional (builtins.pathExists ./do-userdata.nix) ./do-userdata.nix ++ [
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(modulesPath + "/virtualisation/digital-ocean-config.nix")
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];
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}
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'';
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in
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{
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options.virtualisation.digitalOcean.rebuildFromUserData = mkOption {
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type = types.bool;
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default = true;
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example = true;
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description = "Whether to reconfigure the system from Digital Ocean user data";
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};
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options.virtualisation.digitalOcean.defaultConfigFile = mkOption {
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type = types.path;
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default = defaultConfigFile;
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defaultText = literalMD ''
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The default configuration imports user-data if applicable and
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`(modulesPath + "/virtualisation/digital-ocean-config.nix")`.
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'';
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description = ''
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A path to a configuration file which will be placed at
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`/etc/nixos/configuration.nix` and be used when switching to
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a new configuration.
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'';
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};
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config = {
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systemd.services.digitalocean-init = mkIf cfg.rebuildFromUserData {
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description = "Reconfigure the system from Digital Ocean userdata on startup";
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wantedBy = [ "network-online.target" ];
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unitConfig = {
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ConditionPathExists = "!/etc/nixos/do-userdata.nix";
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After = [
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"digitalocean-metadata.service"
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"network-online.target"
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];
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Requires = [ "digitalocean-metadata.service" ];
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X-StopOnRemoval = false;
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};
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serviceConfig = {
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Type = "oneshot";
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RemainAfterExit = true;
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};
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restartIfChanged = false;
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path = [
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pkgs.jq
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pkgs.gnused
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pkgs.gnugrep
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config.systemd.package
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config.nix.package
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config.system.build.nixos-rebuild
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];
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environment = {
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HOME = "/root";
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NIX_PATH = concatStringsSep ":" [
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"/nix/var/nix/profiles/per-user/root/channels/nixos"
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"nixos-config=/etc/nixos/configuration.nix"
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"/nix/var/nix/profiles/per-user/root/channels"
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];
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};
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script = ''
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set -e
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echo "attempting to fetch configuration from Digital Ocean user data..."
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userData=$(mktemp)
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if jq -er '.user_data' /run/do-metadata/v1.json > $userData; then
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# If the user-data looks like it could be a nix expression,
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# copy it over. Also, look for a magic three-hash comment and set
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# that as the channel.
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if nix-instantiate --parse $userData > /dev/null; then
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channels="$(grep '^###' "$userData" | sed 's|###\s*||')"
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printf "%s" "$channels" | while read channel; do
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echo "writing channel: $channel"
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done
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if [[ -n "$channels" ]]; then
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printf "%s" "$channels" > /root/.nix-channels
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nix-channel --update
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fi
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echo "setting configuration from Digital Ocean user data"
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cp "$userData" /etc/nixos/do-userdata.nix
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if [[ ! -e /etc/nixos/configuration.nix ]]; then
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install -m0644 ${cfg.defaultConfigFile} /etc/nixos/configuration.nix
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fi
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else
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echo "user data does not appear to be a Nix expression; ignoring"
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exit
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fi
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nixos-rebuild switch
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else
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echo "no user data is available"
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fi
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'';
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};
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};
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meta.maintainers = with maintainers; [
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arianvp
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eamsden
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];
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}
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