mirror of
https://github.com/NixOS/nixpkgs.git
synced 2025-02-04 11:15:12 +00:00
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 $NIXPKGS_PATH
112 lines
2.9 KiB
Nix
112 lines
2.9 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}:
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with lib;
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let
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cfg = config.virtualisation.amazon-init;
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script = ''
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#!${pkgs.runtimeShell} -eu
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echo "attempting to fetch configuration from EC2 user data..."
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export HOME=/root
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export PATH=${
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pkgs.lib.makeBinPath [
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config.nix.package
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config.systemd.package
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pkgs.gnugrep
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pkgs.git
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pkgs.gnutar
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pkgs.gzip
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pkgs.gnused
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pkgs.xz
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config.system.build.nixos-rebuild
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]
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}:$PATH
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export NIX_PATH=nixpkgs=/nix/var/nix/profiles/per-user/root/channels/nixos:nixos-config=/etc/nixos/configuration.nix:/nix/var/nix/profiles/per-user/root/channels
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userData=/etc/ec2-metadata/user-data
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# Check if user-data looks like a shell script and execute it with the
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# runtime shell if it does. Otherwise treat it as a nixos configuration
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# expression
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if IFS= LC_ALL=C read -rN2 shebang < $userData && [ "$shebang" = '#!' ]; then
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# NB: we cannot chmod the $userData file, this is why we execute it via
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# `pkgs.runtimeShell`. This means we have only limited support for shell
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# scripts compatible with the `pkgs.runtimeShell`.
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exec ${pkgs.runtimeShell} $userData
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fi
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if [ -s "$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 sed '/^\(#\|SSH_HOST_.*\)/d' < "$userData" | grep -q '\S'; then
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channels="$(grep '^###' "$userData" | sed 's|###\s*||')"
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while IFS= read -r channel; do
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echo "writing channel: $channel"
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done < <(printf "%s\n" "$channels")
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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 EC2 user data"
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cp "$userData" /etc/nixos/configuration.nix
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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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else
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echo "no user data is available"
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exit
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fi
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nixos-rebuild switch
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'';
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in
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{
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options.virtualisation.amazon-init = {
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enable = mkOption {
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default = true;
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type = types.bool;
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description = ''
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Enable or disable the amazon-init service.
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'';
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};
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};
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config = mkIf cfg.enable {
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systemd.services.amazon-init = {
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inherit script;
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description = "Reconfigure the system from EC2 userdata on startup";
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wantedBy = [ "multi-user.target" ];
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after = [ "multi-user.target" ];
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requires = [ "network-online.target" ];
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path = [
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"/run/wrappers"
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"/run/current-system/sw"
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];
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restartIfChanged = false;
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unitConfig.X-StopOnRemoval = false;
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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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};
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};
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meta.maintainers = with maintainers; [ arianvp ];
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}
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