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|
{
config,
pkgs,
lib,
...
}:
let
cfg = config.services.tandoor-recipes;
pkg = cfg.package;
stateDir = "/var/lib/tandoor-recipes";
useNewMediaRoot = lib.versionAtLeast config.system.stateVersion "26.05";
# SECRET_KEY through an env file
env = {
GUNICORN_CMD_ARGS = "--bind=${cfg.address}:${toString cfg.port}";
DEBUG = "0";
DEBUG_TOOLBAR = "0";
MEDIA_ROOT = "${stateDir}${lib.optionalString useNewMediaRoot "/media"}";
ALLOWED_HOSTS = cfg.address;
}
// lib.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
${lib.toShellVars env}
# UID is a read-only shell variable
eval "$(${config.systemd.package}/bin/systemctl show -pUID,GID,MainPID tandoor-recipes.service | tr '[:upper:]' '[:lower:]')"
exec ${pkgs.util-linux}/bin/nsenter \
-t $mainpid -m -S $uid -G $gid --wdns=${stateDir} \
${pkg}/bin/tandoor-recipes "$@"
'';
in
{
meta = {
maintainers = with lib.maintainers; [ jvanbruegge ];
doc = ./tandoor-recipes.md;
};
options.services.tandoor-recipes = {
enable = lib.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 = lib.mkOption {
type = lib.types.str;
default = "localhost";
description = "Web interface address.";
};
port = lib.mkOption {
type = lib.types.port;
default = 8080;
description = "Web interface port.";
};
extraConfig = lib.mkOption {
type = lib.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";
};
};
user = lib.mkOption {
type = lib.types.str;
default = "tandoor_recipes";
description = "User account under which Tandoor runs.";
};
group = lib.mkOption {
type = lib.types.str;
default = "tandoor_recipes";
description = "Group under which Tandoor runs.";
};
package = lib.mkPackageOption pkgs "tandoor-recipes" { };
database = {
createLocally = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Configure local PostgreSQL database server for Tandoor Recipes.
'';
};
};
};
config = lib.mkIf cfg.enable {
warnings = lib.mkIf (!useNewMediaRoot && !(cfg.extraConfig ? MEDIA_ROOT)) [
"`services.tandoor-recipes.extraConfig.MEDIA_ROOT` is unset. This is considered insecure for `system.stateVersion` < 26.05. See https://nixos.org/manual/nixos/unstable/#module-services-tandoor-recipes-migrating-media for migration instructions."
];
users.users = lib.mkIf (cfg.user == "tandoor_recipes") {
tandoor_recipes = {
inherit (cfg) group;
isSystemUser = true;
};
};
users.groups = lib.mkIf (cfg.group == "tandoor_recipes") {
tandoor_recipes = { };
};
systemd.services.tandoor-recipes = {
description = "Tandoor Recipes server";
requires = lib.optional cfg.database.createLocally "postgresql.target";
after = lib.optional cfg.database.createLocally "postgresql.target";
serviceConfig = {
ExecStart = ''
${pkg.python.pkgs.gunicorn}/bin/gunicorn recipes.wsgi
'';
Restart = "on-failure";
User = cfg.user;
Group = cfg.group;
StateDirectory = [
"tandoor-recipes"
]
++ lib.optional (env.MEDIA_ROOT == "/var/lib/tandoor-recipes/media") "tandoor-recipes/media";
WorkingDirectory = stateDir;
RuntimeDirectory = "tandoor-recipes";
BindReadOnlyPaths = [
"${config.security.pki.caBundle}:/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";
};
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";
};
};
services.tandoor-recipes.extraConfig = lib.mkIf cfg.database.createLocally {
DB_ENGINE = "django.db.backends.postgresql";
POSTGRES_HOST = "/run/postgresql";
POSTGRES_USER = "tandoor_recipes";
POSTGRES_DB = "tandoor_recipes";
};
services.postgresql = lib.mkIf cfg.database.createLocally {
enable = true;
ensureDatabases = [ "tandoor_recipes" ];
ensureUsers = [
{
name = "tandoor_recipes";
ensureDBOwnership = true;
}
];
};
};
}
|
