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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.winstone;
winstoneOpts = { name, ... }: {
options = {
name = mkOption {
default = name;
internal = true;
};
serviceName = mkOption {
type = types.str;
description = ''
The name of the systemd service. By default, it is
derived from the winstone instance name.
'';
};
warFile = mkOption {
type = types.str;
description = ''
The WAR file that Winstone should serve.
'';
};
javaPackage = mkOption {
type = types.package;
default = pkgs.jre;
defaultText = "pkgs.jre";
description = ''
Which Java derivation to use for running Winstone.
'';
};
user = mkOption {
type = types.str;
description = ''
The user that should run this Winstone process and
own the working directory.
'';
};
group = mkOption {
type = types.str;
description = ''
The group that will own the working directory.
'';
};
workDir = mkOption {
type = types.str;
description = ''
The working directory for this Winstone instance. Will
contain extracted webapps etc. The directory will be
created if it doesn't exist.
'';
};
extraJavaOptions = mkOption {
type = types.listOf types.str;
default = [];
description = ''
Extra command line options given to the java process running
Winstone.
'';
};
extraOptions = mkOption {
type = types.listOf types.str;
default = [];
description = ''
Extra command line options given to the Winstone process.
'';
};
};
config = {
workDir = mkDefault "/run/winstone/${name}";
serviceName = mkDefault "winstone-${name}";
};
};
mkService = cfg: let
opts = concatStringsSep " " (cfg.extraOptions ++ [
"--warfile ${cfg.warFile}"
]);
javaOpts = concatStringsSep " " (cfg.extraJavaOptions ++ [
"-Djava.io.tmpdir=${cfg.workDir}"
"-jar ${pkgs.winstone}/lib/winstone.jar"
]);
in {
wantedBy = [ "multi-user.target" ];
description = "winstone service for ${cfg.name}";
preStart = ''
mkdir -p "${cfg.workDir}"
chown ${cfg.user}:${cfg.group} "${cfg.workDir}"
'';
serviceConfig = {
ExecStart = "${cfg.javaPackage}/bin/java ${javaOpts} ${opts}";
User = cfg.user;
PermissionsStartOnly = true;
};
};
in {
options = {
services.winstone = mkOption {
default = {};
type = types.attrsOf types.optionSet;
options = [ winstoneOpts ];
description = ''
Defines independent Winstone services, each serving one WAR-file.
'';
};
};
config = mkIf (cfg != {}) {
systemd.services = mapAttrs' (n: c: nameValuePair c.serviceName (mkService c)) cfg;
};
}
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