82 lines
2.3 KiB
Nix
82 lines
2.3 KiB
Nix
{ config, lib, pkgs, ... }:
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with import <stockholm/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 = lib.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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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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srcDir = mkOption {
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type = types.str;
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default = "${config.krebs.tinc.retiolum.confDir}/hosts";
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};
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ssh-identity-file = mkOption {
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type = types.suffixed-str [".ssh.id_ed25519" ".ssh.id_rsa"];
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default = toString <secrets/github-hosts-sync.ssh.id_ed25519>;
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};
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url = mkOption {
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type = types.str;
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default = "git@github.com:krebs/hosts.git";
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};
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workTree = mkOption {
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type = types.absolute-pathname;
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default = "${cfg.dataDir}/cache";
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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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GITHUB_HOST_SYNC_USER_MAIL = user.mail;
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GITHUB_HOST_SYNC_USER_NAME = user.name;
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GITHUB_HOST_SYNC_SRCDIR = cfg.srcDir;
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GITHUB_HOST_SYNC_WORKTREE = cfg.workTree;
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GITHUB_HOST_SYNC_URL = cfg.url;
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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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Type = "oneshot";
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RemainAfterExit = true;
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ExecStartPre = pkgs.writeDash "github-hosts-sync-init" ''
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set -euf
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install -m 0711 -o ${user.name} -d ${cfg.dataDir}
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install -m 0700 -o ${user.name} -d ${cfg.dataDir}/.ssh
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install -m 0400 -o ${user.name} \
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${cfg.ssh-identity-file} \
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${cfg.dataDir}/.ssh/${fileExtension cfg.ssh-identity-file}
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'';
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ExecStart = "${pkgs.github-hosts-sync}/bin/github-hosts-sync";
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};
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};
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users.users.${user.name} = {
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inherit (user) uid;
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home = cfg.dataDir;
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isSystemUser = true;
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};
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};
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user = rec {
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mail = "${name}@${config.krebs.build.host.name}";
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name = "github-hosts-sync";
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uid = genid_uint31 name;
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};
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# TODO move to lib?
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fileExtension = s: last (splitString "." s);
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in out
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