nixpkgs/nixos/modules/services/security/sks.nix
Elis Hirwing ab5dcc7068
nixos/sks: Add option to configure database settings
This can be used for options to tweak the behavior around the database.
2019-01-28 11:14:37 +01:00

145 lines
4.6 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.sks;
sksPkg = cfg.package;
dbConfig = pkgs.writeText "DB_CONFIG" ''
${cfg.extraDbConfig}
'';
in {
meta.maintainers = with maintainers; [ primeos calbrecht jcumming ];
options = {
services.sks = {
enable = mkEnableOption ''
SKS (synchronizing key server for OpenPGP) and start the database
server. You need to create "''${dataDir}/dump/*.gpg" for the initial
import'';
package = mkOption {
default = pkgs.sks;
defaultText = "pkgs.sks";
type = types.package;
description = "Which SKS derivation to use.";
};
dataDir = mkOption {
type = types.path;
default = "/var/db/sks";
example = "/var/lib/sks";
# TODO: The default might change to "/var/lib/sks" as this is more
# common. There's also https://github.com/NixOS/nixpkgs/issues/26256
# and "/var/db" is not FHS compliant (seems to come from BSD).
description = ''
Data directory (-basedir) for SKS, where the database and all
configuration files are located (e.g. KDB, PTree, membership and
sksconf).
'';
};
extraDbConfig = mkOption {
type = types.str;
default = "";
description = ''
Set contents of the files "KDB/DB_CONFIG" and "PTree/DB_CONFIG" within
the ''${dataDir} directory. This is used to configure options for the
database for the sks key server.
Documentation of available options are available in the file named
"sampleConfig/DB_CONFIG" in the following repository:
https://bitbucket.org/skskeyserver/sks-keyserver/src
'';
};
hkpAddress = mkOption {
default = [ "127.0.0.1" "::1" ];
type = types.listOf types.str;
description = ''
Domain names, IPv4 and/or IPv6 addresses to listen on for HKP
requests.
'';
};
hkpPort = mkOption {
default = 11371;
type = types.ints.u16;
description = "HKP port to listen on.";
};
webroot = mkOption {
type = types.nullOr types.path;
default = "${sksPkg.webSamples}/OpenPKG";
defaultText = "\${pkgs.sks.webSamples}/OpenPKG";
description = ''
Source directory (will be symlinked, if not null) for the files the
built-in webserver should serve. SKS (''${pkgs.sks.webSamples})
provides the following examples: "HTML5", "OpenPKG", and "XHTML+ES".
The index file can be named index.html, index.htm, index.xhtm, or
index.xhtml. Files with the extensions .css, .es, .js, .jpg, .jpeg,
.png, or .gif are supported. Subdirectories and filenames with
anything other than alphanumeric characters and the '.' character
will be ignored.
'';
};
};
};
config = mkIf cfg.enable {
users = {
users.sks = {
isSystemUser = true;
description = "SKS user";
home = cfg.dataDir;
createHome = true;
group = "sks";
useDefaultShell = true;
packages = [ sksPkg pkgs.db ];
};
groups.sks = { };
};
systemd.services = let
hkpAddress = "'" + (builtins.concatStringsSep " " cfg.hkpAddress) + "'" ;
hkpPort = builtins.toString cfg.hkpPort;
in {
"sks-db" = {
description = "SKS database server";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
preStart = ''
${lib.optionalString (cfg.webroot != null)
"ln -sfT \"${cfg.webroot}\" web"}
mkdir -p dump
# Check that both database configs are symlinks before overwriting them
if [ -e KDB/DB_CONFIG ] && [ ! -L KBD/DB_CONFIG ]; then
echo "KDB/DB_CONFIG exists but is not a symlink." >&2
exit 1
fi
if [ -e PTree/DB_CONFIG ] && [ ! -L PTree/DB_CONFIG ]; then
echo "PTree/DB_CONFIG exists but is not a symlink." >&2
exit 1
fi
ln -sf ${dbConfig} KDB/DB_CONFIG
ln -sf ${dbConfig} PTree/DB_CONFIG
${sksPkg}/bin/sks build dump/*.gpg -n 10 -cache 100 || true #*/
${sksPkg}/bin/sks cleandb || true
${sksPkg}/bin/sks pbuild -cache 20 -ptree_cache 70 || true
'';
serviceConfig = {
WorkingDirectory = "~";
User = "sks";
Group = "sks";
Restart = "always";
ExecStart = "${sksPkg}/bin/sks db -hkp_address ${hkpAddress} -hkp_port ${hkpPort}";
};
};
};
};
}