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{ config, pkgs, lib, ... }:
with lib;
let
cfg = config.services.tandoor-recipes;
pkg = cfg.package;
# SECRET_KEY through an env file
env = {
GUNICORN_CMD_ARGS = "--bind=${cfg.address}:${toString cfg.port}";
DEBUG = "0";
DEBUG_TOOLBAR = "0";
MEDIA_ROOT = "/var/lib/tandoor-recipes";
} // optionalAttrs (config.time.timeZone != null) {
TZ = config.time.timeZone;
} // (
lib.mapAttrs (_: toString) cfg.extraConfig
);
manage = pkgs.writeShellScript "manage" ''
set -o allexport # Export the following env vars
${lib.toShellVars env}
eval "$(${config.systemd.package}/bin/systemctl show -pUID,GID,MainPID tandoor-recipes.service)"
exec ${pkgs.util-linux}/bin/nsenter \
-t $MainPID -m -S $UID -G $GID --wdns=${env.MEDIA_ROOT} \
${pkg}/bin/tandoor-recipes "$@"
'';
in
{
meta.maintainers = with maintainers; [ ambroisie ];
options.services.tandoor-recipes = {
enable = mkOption {
type = lib.types.bool;
default = false;
description = ''
Enable Tandoor Recipes.
When started, the Tandoor Recipes database is automatically created if
it doesn't exist and updated if the package has changed. Both tasks are
achieved by running a Django migration.
A script to manage the instance (by wrapping Django's manage.py) is linked to
`/var/lib/tandoor-recipes/tandoor-recipes-manage`.
'';
};
address = mkOption {
type = types.str;
default = "localhost";
description = "Web interface address.";
};
port = mkOption {
type = types.port;
default = 8080;
description = "Web interface port.";
};
extraConfig = mkOption {
type = types.attrs;
default = { };
description = ''
Extra tandoor recipes config options.
See [the example dot-env file](https://raw.githubusercontent.com/vabene1111/recipes/master/.env.template)
for available options.
'';
example = {
ENABLE_SIGNUP = "1";
};
};
package = mkPackageOption pkgs "tandoor-recipes" { };
};
config = mkIf cfg.enable {
systemd.services.tandoor-recipes = {
description = "Tandoor Recipes server";
serviceConfig = {
ExecStart = ''
${pkg.python.pkgs.gunicorn}/bin/gunicorn recipes.wsgi
'';
Restart = "on-failure";
User = "tandoor_recipes";
Group = "tandoor_recipes";
DynamicUser = true;
StateDirectory = "tandoor-recipes";
WorkingDirectory = env.MEDIA_ROOT;
RuntimeDirectory = "tandoor-recipes";
BindReadOnlyPaths = [
"${config.environment.etc."ssl/certs/ca-certificates.crt".source}:/etc/ssl/certs/ca-certificates.crt"
builtins.storeDir
"-/etc/resolv.conf"
"-/etc/nsswitch.conf"
"-/etc/hosts"
"-/etc/localtime"
"-/run/postgresql"
];
CapabilityBoundingSet = "";
LockPersonality = true;
MemoryDenyWriteExecute = true;
PrivateDevices = true;
PrivateUsers = true;
ProtectClock = true;
ProtectControlGroups = true;
ProtectHome = true;
ProtectHostname = true;
ProtectKernelLogs = true;
ProtectKernelModules = true;
ProtectKernelTunables = true;
RestrictAddressFamilies = [ "AF_UNIX" "AF_INET" "AF_INET6" ];
RestrictNamespaces = true;
RestrictRealtime = true;
SystemCallArchitectures = "native";
# gunicorn needs setuid
SystemCallFilter = [ "@system-service" "~@privileged" "@resources" "@setuid" "@keyring" ];
UMask = "0066";
} // lib.optionalAttrs (cfg.port < 1024) {
AmbientCapabilities = [ "CAP_NET_BIND_SERVICE" ];
CapabilityBoundingSet = [ "CAP_NET_BIND_SERVICE" ];
};
wantedBy = [ "multi-user.target" ];
preStart = ''
ln -sf ${manage} tandoor-recipes-manage
# Let django migrate the DB as needed
${pkg}/bin/tandoor-recipes migrate
'';
environment = env // {
PYTHONPATH = "${pkg.python.pkgs.makePythonPath pkg.propagatedBuildInputs}:${pkg}/lib/tandoor-recipes";
};
};
};
}
|