0a37316d6c
This commit replaces a lot of usages of `mkOption` with the package type, to be `mkPackageOption`, in order to reduce the amount of code.
95 lines
2.6 KiB
Nix
95 lines
2.6 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.litestream;
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settingsFormat = pkgs.formats.yaml {};
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in
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{
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options.services.litestream = {
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enable = mkEnableOption (lib.mdDoc "litestream");
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package = mkPackageOption pkgs "litestream" { };
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settings = mkOption {
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description = lib.mdDoc ''
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See the [documentation](https://litestream.io/reference/config/).
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'';
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type = settingsFormat.type;
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example = {
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dbs = [
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{
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path = "/var/lib/db1";
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replicas = [
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{
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url = "s3://mybkt.litestream.io/db1";
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}
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];
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}
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];
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};
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};
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environmentFile = mkOption {
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type = types.nullOr types.path;
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default = null;
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example = "/run/secrets/litestream";
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description = lib.mdDoc ''
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Environment file as defined in {manpage}`systemd.exec(5)`.
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Secrets may be passed to the service without adding them to the
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world-readable Nix store, by specifying placeholder variables as
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the option value in Nix and setting these variables accordingly in the
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environment file.
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By default, Litestream will perform environment variable expansion
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within the config file before reading it. Any references to ''$VAR or
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''${VAR} formatted variables will be replaced with their environment
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variable values. If no value is set then it will be replaced with an
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empty string.
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```
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# Content of the environment file
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LITESTREAM_ACCESS_KEY_ID=AKIAxxxxxxxxxxxxxxxx
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LITESTREAM_SECRET_ACCESS_KEY=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/xxxxxxxxx
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```
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Note that this file needs to be available on the host on which
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this exporter is running.
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'';
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};
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};
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config = mkIf cfg.enable {
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environment.systemPackages = [ cfg.package ];
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environment.etc = {
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"litestream.yml" = {
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source = settingsFormat.generate "litestream-config.yaml" cfg.settings;
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};
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};
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systemd.services.litestream = {
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description = "Litestream";
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wantedBy = [ "multi-user.target" ];
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after = [ "networking.target" ];
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serviceConfig = {
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EnvironmentFile = mkIf (cfg.environmentFile != null) cfg.environmentFile;
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ExecStart = "${cfg.package}/bin/litestream replicate";
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Restart = "always";
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User = "litestream";
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Group = "litestream";
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};
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};
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users.users.litestream = {
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description = "Litestream user";
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group = "litestream";
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isSystemUser = true;
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};
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users.groups.litestream = {};
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};
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meta.doc = ./default.md;
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}
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