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{ config, lib, pkgs, ... }:
let
cfg = config.services.kavita;
settingsFormat = pkgs.formats.json { };
appsettings = settingsFormat.generate "appsettings.json" ({ TokenKey = "@TOKEN@"; } // cfg.settings);
in
{
imports = [
(lib.mkChangedOptionModule [ "services" "kavita" "ipAdresses" ] [ "services" "kavita" "settings" "IpAddresses" ] (config:
let value = lib.getAttrFromPath [ "services" "kavita" "ipAdresses" ] config; in
lib.concatStringsSep "," value
))
(lib.mkRenamedOptionModule [ "services" "kavita" "port" ] [ "services" "kavita" "settings" "Port" ])
];
options.services.kavita = {
enable = lib.mkEnableOption (lib.mdDoc "Kavita reading server");
user = lib.mkOption {
type = lib.types.str;
default = "kavita";
description = lib.mdDoc "User account under which Kavita runs.";
};
package = lib.mkPackageOption pkgs "kavita" { };
dataDir = lib.mkOption {
default = "/var/lib/kavita";
type = lib.types.str;
description = lib.mdDoc "The directory where Kavita stores its state.";
};
tokenKeyFile = lib.mkOption {
type = lib.types.path;
description = lib.mdDoc ''
A file containing the TokenKey, a secret with at 128+ bits.
It can be generated with `head -c 32 /dev/urandom | base64`.
'';
};
settings = lib.mkOption {
default = { };
description = lib.mdDoc ''
Kavita configuration options, as configured in {file}`appsettings.json`.
'';
type = lib.types.submodule {
freeformType = settingsFormat.type;
options = {
Port = lib.mkOption {
default = 5000;
type = lib.types.port;
description = lib.mdDoc "Port to bind to.";
};
IpAddresses = lib.mkOption {
default = "0.0.0.0,::";
type = lib.types.commas;
description = lib.mdDoc ''
IP Addresses to bind to. The default is to bind to all IPv4 and IPv6 addresses.
'';
};
};
};
};
};
config = lib.mkIf cfg.enable {
systemd.services.kavita = {
description = "Kavita";
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
preStart = ''
install -m600 ${appsettings} ${lib.escapeShellArg cfg.dataDir}/config/appsettings.json
${pkgs.replace-secret}/bin/replace-secret '@TOKEN@' \
''${CREDENTIALS_DIRECTORY}/token \
'${cfg.dataDir}/config/appsettings.json'
'';
serviceConfig = {
WorkingDirectory = cfg.dataDir;
LoadCredential = [ "token:${cfg.tokenKeyFile}" ];
ExecStart = lib.getExe cfg.package;
Restart = "always";
User = cfg.user;
};
};
systemd.tmpfiles.rules = [
"d '${cfg.dataDir}' 0750 ${cfg.user} ${cfg.user} - -"
"d '${cfg.dataDir}/config' 0750 ${cfg.user} ${cfg.user} - -"
];
users = {
users.${cfg.user} = {
description = "kavita service user";
isSystemUser = true;
group = cfg.user;
home = cfg.dataDir;
};
groups.${cfg.user} = { };
};
};
meta.maintainers = with lib.maintainers; [ misterio77 ];
}
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