82 lines
2.1 KiB
Nix
82 lines
2.1 KiB
Nix
{ config, lib, pkgs, ... }:
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with builtins;
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with lib;
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let
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cfg = config.krebs.github-hosts-sync;
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out = {
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options.krebs.github-hosts-sync = api;
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config = mkIf cfg.enable imp;
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};
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api = {
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enable = mkEnableOption "krebs.github-hosts-sync";
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port = mkOption {
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type = types.int; # TODO port type
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default = 1028;
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};
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dataDir = mkOption {
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type = types.str; # TODO path (but not just into store)
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default = "/var/lib/github-hosts-sync";
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};
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ssh-identity-file = mkOption {
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type = types.str; # TODO must be named *.ssh.{id_rsa,id_ed25519}
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default = "/root/src/secrets/github-hosts-sync.ssh.id_rsa";
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};
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};
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imp = {
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systemd.services.github-hosts-sync = {
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after = [ "network.target" ];
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wantedBy = [ "multi-user.target" ];
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environment = {
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port = toString cfg.port;
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};
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serviceConfig = {
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PermissionsStartOnly = "true";
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SyslogIdentifier = "github-hosts-sync";
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User = user.name;
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Restart = "always";
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ExecStartPre = pkgs.writeScript "github-hosts-sync-init" ''
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#! /bin/sh
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set -euf
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ssh_identity_file_target=$(
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case ${cfg.ssh-identity-file} in
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*.ssh.id_rsa|*.ssh.id_ed25519) echo ${cfg.dataDir}/.ssh/id_rsa;;
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*.ssh.id_ed25519) echo ${cfg.dataDir}/.ssh/id_ed25519;;
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*)
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echo "bad identity file name: ${cfg.ssh-identity-file}" >&2
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exit 1
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esac
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)
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mkdir -p ${cfg.dataDir}
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chown ${user.name}: ${cfg.dataDir}
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install \
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-o ${user.name} \
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-m 0400 \
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${cfg.ssh-identity-file} \
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"$ssh_identity_file_target"
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ln -snf ${pkgs.github-known_hosts} ${cfg.dataDir}/.ssh/known_hosts
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'';
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ExecStart = "${pkgs.github-hosts-sync}/bin/github-hosts-sync";
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};
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};
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users.extraUsers = singleton {
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inherit (user) name uid;
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home = cfg.dataDir;
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};
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};
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user = {
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name = "github-hosts-sync";
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uid = 3220554646; # genid github-hosts-sync
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};
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in
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out
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