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|
{ config, lib, pkgs, ... }:
let
cfg = config.services.bookwyrm;
manage-wrapper = cfg.package.manage cfg.environmentFile;
in
{
options.services.bookwyrm = with lib; {
enable = mkEnableOption "bookwyrm";
settings = mkOption {
default = {};
type = types.attrsOf (types.oneOf [ types.bool types.str types.int ]);
description = ''
Settings passed to bookwyrm via environment variables. See bookwyrm's
[.env.example](https://github.com/bookwyrm-social/bookwyrm/blob/v0.7.2/.env.example)
file for what is permissible here.
'';
};
package = mkOption {
default = pkgs.bookwyrm.override { inherit (cfg) settings; };
type = types.package;
description = ''
The bookwyrm package to use. Note that this includes the settings .env file;
if you set this directly, settings set via {option}`services.bookwyrm.settings`
will be ignored.
'';
};
stateDir = mkOption {
default = "/var/lib/bookwyrm";
type = types.path;
description = ''
Where bookwyrm keeps dynamic data (in practice, exclusively book covers?) when
not configured to use an S3-compatible storage. This should be persistent storage,
otherwise you will have missing book covers and no obvious way to re-download them
from a catalogue.
'';
};
bindAddress = mkOption {
default = "0.0.0.0";
type = types.str;
description = ''
Address bookwyrm should bind to.
'';
};
port = mkOption {
default = 8000;
type = types.port;
description = ''
Port bookwyrm should listen on.
'';
};
threads = mkOption {
default = 8;
type = types.int;
description = ''
Number of threads that gunicorn should spawn.
'';
};
setupNginx = mkOption {
default = false;
type = types.bool;
description = ''
Whether to set up a simple nginx config to serve bookwyrm's `static/` and `image`
directories.
'';
};
nginxVirtualHost = mkOption {
default = "default";
type = types.str;
description = ''
The name of the nginx virtual host to set up.
'';
};
installWrapper = mkOption {
default = true;
type = types.bool;
description = ''
Whether to install a wrapper script `bookworm-manage.py` into the system environmnt,
which calls bookwyrm's `manage.py` script with the correct python path.
'';
};
environmentFile = mkOption {
default = null;
type = types.nullOr types.path;
description = ''
An environment file containing config options which should not be set via Nix / not
be contained in the nix store.
'';
};
};
config = with lib; mkIf cfg.enable {
systemd.packages = [ cfg.package ];
systemd.services = {
bookwyrm = {
enable = true;
wantedBy = [ "multi-user.target" ];
serviceConfig = mkMerge [
{
BindPaths = [
cfg.package.gunicorn
cfg.package.celery
cfg.stateDir
];
}
(mkIf (cfg.bindAddress != "0.0.0.0" || cfg.port != 8000 || cfg.threads != 8) {
ExecStart = "${lib.getExe cfg.package.gunicorn} bookwyrm.wsgi:application --threads=${toString cfg.threads} --bind ${cfg.bindAddress}:${toString cfg.port}";
})
(mkIf (cfg.environmentFile != null) {
EnvironmentFile = cfg.environmentFile;
})
];
environment.PYTHONPATH = cfg.package.pythonPath;
preStart = ''
${lib.getExe manage-wrapper} migrate
# will fail after the first time
${lib.getExe manage-wrapper} initdb || true
'';
};
bookwyrm-worker = {
enable = true;
wantedBy = [ "multi-user.target" ];
environment.PYTHONPATH = cfg.package.pythonPath;
serviceConfig.BindPaths = [
cfg.stateDir
];
serviceConfig.EnvironmentFile =
mkIf (cfg.environmentFile != null) cfg.environmentFile;
};
bookwyrm-scheduler = {
enable = true;
wantedBy = [ "multi-user.target" ];
environment.PYTHONPATH = cfg.package.pythonPath;
serviceConfig.EnvironmentFile =
mkIf (cfg.environmentFile != null) cfg.environmentFile;
};
};
systemd.tmpfiles.rules = [
"d ${cfg.stateDir}/images 0750 bookwyrm bookwyrm - -"
];
services.nginx = mkIf cfg.setupNginx {
enable = true;
virtualHosts.${cfg.nginxVirtualHost} = {
locations."/static".root = config.services.bookwyrm.package;
locations."/images".root = cfg.stateDir;
locations."/".proxyPass = "http://${cfg.bindAddress}:${toString cfg.port}";
};
};
users.users = mkMerge [
{
bookwyrm = {
isSystemUser = true;
group = "bookwyrm";
};
}
(mkIf cfg.setupNginx {
nginx.extraGroups = [ "bookwyrm" ];
})
];
users.groups.bookwyrm = {};
environment.systemPackages = mkIf cfg.installWrapper [
manage-wrapper
];
warnings = mkIf (cfg.settings ? "SECRET_KEY") [ ''
Setting bookwyrm's SECRET_KEY via the free-form services.bookwyrm.settings.* is discouraged.
It's better to pass an env file containing it to servies.bookwyrm.envFile instead.
''
];
};
}
|
