mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-27 16:15:05 +00:00
3dfb2c685a
Found a few instances, where celery intermittently complained about a misconfigured redis instance and exited. > redis.exceptions.ResponseError: MISCONF Redis is configured to save RDB > snapshots, but it's currently unable to persist to disk. Commands that > may modify the data set are disabled, because this instance is > configured to report errors during writes if RDB snapshotting fails > (stop-writes-on-bgsave-error option). Please check the Redis logs for > details about the RDB error.
586 lines
17 KiB
Nix
586 lines
17 KiB
Nix
{ config
|
||
, lib
|
||
, pkgs
|
||
, utils
|
||
, ...
|
||
}:
|
||
|
||
let
|
||
inherit (lib)
|
||
concatMapStringsSep
|
||
escapeShellArgs
|
||
filter
|
||
filterAttrs
|
||
getExe
|
||
getExe'
|
||
isAttrs
|
||
isList
|
||
literalExpression
|
||
mapAttrs
|
||
mkDefault
|
||
mkEnableOption
|
||
mkIf
|
||
mkOption
|
||
mkPackageOption
|
||
optionals
|
||
optionalString
|
||
recursiveUpdate
|
||
types
|
||
;
|
||
|
||
filterRecursiveNull = o:
|
||
if isAttrs o then
|
||
mapAttrs (_: v: filterRecursiveNull v) (filterAttrs (_: v: v != null) o)
|
||
else if isList o then
|
||
map filterRecursiveNull (filter (v: v != null) o)
|
||
else
|
||
o;
|
||
|
||
cfg = config.services.pretix;
|
||
format = pkgs.formats.ini { };
|
||
|
||
configFile = format.generate "pretix.cfg" (filterRecursiveNull cfg.settings);
|
||
|
||
finalPackage = cfg.package.override {
|
||
inherit (cfg) plugins;
|
||
};
|
||
|
||
pythonEnv = cfg.package.python.buildEnv.override {
|
||
extraLibs = with cfg.package.python.pkgs; [
|
||
(toPythonModule finalPackage)
|
||
gunicorn
|
||
]
|
||
++ lib.optionals (cfg.settings.memcached.location != null)
|
||
cfg.package.optional-dependencies.memcached
|
||
;
|
||
};
|
||
|
||
withRedis = cfg.settings.redis.location != null;
|
||
in
|
||
{
|
||
meta = with lib; {
|
||
maintainers = with maintainers; [ hexa ];
|
||
};
|
||
|
||
options.services.pretix = {
|
||
enable = mkEnableOption "Pretix, a ticket shop application for conferences, festivals, concerts, etc";
|
||
|
||
package = mkPackageOption pkgs "pretix" { };
|
||
|
||
group = mkOption {
|
||
type = types.str;
|
||
default = "pretix";
|
||
description = ''
|
||
Group under which pretix should run.
|
||
'';
|
||
};
|
||
|
||
user = mkOption {
|
||
type = types.str;
|
||
default = "pretix";
|
||
description = ''
|
||
User under which pretix should run.
|
||
'';
|
||
};
|
||
|
||
environmentFile = mkOption {
|
||
type = types.nullOr types.path;
|
||
default = null;
|
||
example = "/run/keys/pretix-secrets.env";
|
||
description = ''
|
||
Environment file to pass secret configuration values.
|
||
|
||
Each line must follow the `PRETIX_SECTION_KEY=value` pattern.
|
||
'';
|
||
};
|
||
|
||
plugins = mkOption {
|
||
type = types.listOf types.package;
|
||
default = [];
|
||
example = literalExpression ''
|
||
with config.services.pretix.package.plugins; [
|
||
passbook
|
||
pages
|
||
];
|
||
'';
|
||
description = ''
|
||
Pretix plugins to install into the Python environment.
|
||
'';
|
||
};
|
||
|
||
gunicorn.extraArgs = mkOption {
|
||
type = with types; listOf str;
|
||
default = [
|
||
"--name=pretix"
|
||
];
|
||
example = [
|
||
"--name=pretix"
|
||
"--workers=4"
|
||
"--max-requests=1200"
|
||
"--max-requests-jitter=50"
|
||
"--log-level=info"
|
||
];
|
||
description = ''
|
||
Extra arguments to pass to gunicorn.
|
||
See <https://docs.pretix.eu/en/latest/admin/installation/manual_smallscale.html#start-pretix-as-a-service> for details.
|
||
'';
|
||
apply = escapeShellArgs;
|
||
};
|
||
|
||
celery = {
|
||
extraArgs = mkOption {
|
||
type = with types; listOf str;
|
||
default = [ ];
|
||
description = ''
|
||
Extra arguments to pass to celery.
|
||
|
||
See <https://docs.celeryq.dev/en/stable/reference/cli.html#celery-worker> for more info.
|
||
'';
|
||
apply = utils.escapeSystemdExecArgs;
|
||
};
|
||
};
|
||
|
||
nginx = {
|
||
enable = mkOption {
|
||
type = types.bool;
|
||
default = true;
|
||
example = false;
|
||
description = ''
|
||
Whether to set up an nginx virtual host.
|
||
'';
|
||
};
|
||
|
||
domain = mkOption {
|
||
type = types.str;
|
||
example = "talks.example.com";
|
||
description = ''
|
||
The domain name under which to set up the virtual host.
|
||
'';
|
||
};
|
||
};
|
||
|
||
database.createLocally = mkOption {
|
||
type = types.bool;
|
||
default = true;
|
||
example = false;
|
||
description = ''
|
||
Whether to automatically set up the database on the local DBMS instance.
|
||
|
||
Only supported for PostgreSQL. Not required for sqlite.
|
||
'';
|
||
};
|
||
|
||
settings = mkOption {
|
||
type = types.submodule {
|
||
freeformType = format.type;
|
||
options = {
|
||
pretix = {
|
||
instance_name = mkOption {
|
||
type = types.str;
|
||
example = "tickets.example.com";
|
||
description = ''
|
||
The name of this installation.
|
||
'';
|
||
};
|
||
|
||
url = mkOption {
|
||
type = types.str;
|
||
example = "https://tickets.example.com";
|
||
description = ''
|
||
The installation’s full URL, without a trailing slash.
|
||
'';
|
||
};
|
||
|
||
cachedir = mkOption {
|
||
type = types.path;
|
||
default = "/var/cache/pretix";
|
||
description = ''
|
||
Directory for storing temporary files.
|
||
'';
|
||
};
|
||
|
||
datadir = mkOption {
|
||
type = types.path;
|
||
default = "/var/lib/pretix";
|
||
description = ''
|
||
Directory for storing user uploads and similar data.
|
||
'';
|
||
};
|
||
|
||
logdir = mkOption {
|
||
type = types.path;
|
||
default = "/var/log/pretix";
|
||
description = ''
|
||
Directory for storing log files.
|
||
'';
|
||
};
|
||
|
||
currency = mkOption {
|
||
type = types.str;
|
||
default = "EUR";
|
||
example = "USD";
|
||
description = ''
|
||
Default currency for events in its ISO 4217 three-letter code.
|
||
'';
|
||
};
|
||
|
||
registration = mkOption {
|
||
type = types.bool;
|
||
default = false;
|
||
example = true;
|
||
description = ''
|
||
Whether to allow registration of new admin users.
|
||
'';
|
||
};
|
||
};
|
||
|
||
database = {
|
||
backend = mkOption {
|
||
type = types.enum [
|
||
"sqlite3"
|
||
"postgresql"
|
||
];
|
||
default = "postgresql";
|
||
description = ''
|
||
Database backend to use.
|
||
|
||
Only postgresql is recommended for production setups.
|
||
'';
|
||
};
|
||
|
||
host = mkOption {
|
||
type = with types; nullOr path;
|
||
default = if cfg.settings.database.backend == "postgresql" then "/run/postgresql" else null;
|
||
defaultText = literalExpression ''
|
||
if config.services.pretix.settings..database.backend == "postgresql" then "/run/postgresql"
|
||
else null
|
||
'';
|
||
description = ''
|
||
Database host or socket path.
|
||
'';
|
||
};
|
||
|
||
name = mkOption {
|
||
type = types.str;
|
||
default = "pretix";
|
||
description = ''
|
||
Database name.
|
||
'';
|
||
};
|
||
|
||
user = mkOption {
|
||
type = types.str;
|
||
default = "pretix";
|
||
description = ''
|
||
Database username.
|
||
'';
|
||
};
|
||
};
|
||
|
||
mail = {
|
||
from = mkOption {
|
||
type = types.str;
|
||
example = "tickets@example.com";
|
||
description = ''
|
||
E-Mail address used in the `FROM` header of outgoing mails.
|
||
'';
|
||
};
|
||
|
||
host = mkOption {
|
||
type = types.str;
|
||
default = "localhost";
|
||
example = "mail.example.com";
|
||
description = ''
|
||
Hostname of the SMTP server use for mail delivery.
|
||
'';
|
||
};
|
||
|
||
port = mkOption {
|
||
type = types.port;
|
||
default = 25;
|
||
example = 587;
|
||
description = ''
|
||
Port of the SMTP server to use for mail delivery.
|
||
'';
|
||
};
|
||
};
|
||
|
||
celery = {
|
||
backend = mkOption {
|
||
type = types.str;
|
||
default = "redis+socket://${config.services.redis.servers.pretix.unixSocket}?virtual_host=1";
|
||
defaultText = literalExpression ''
|
||
redis+socket://''${config.services.redis.servers.pretix.unixSocket}?virtual_host=1
|
||
'';
|
||
description = ''
|
||
URI to the celery backend used for the asynchronous job queue.
|
||
'';
|
||
};
|
||
|
||
broker = mkOption {
|
||
type = types.str;
|
||
default = "redis+socket://${config.services.redis.servers.pretix.unixSocket}?virtual_host=2";
|
||
defaultText = literalExpression ''
|
||
redis+socket://''${config.services.redis.servers.pretix.unixSocket}?virtual_host=2
|
||
'';
|
||
description = ''
|
||
URI to the celery broker used for the asynchronous job queue.
|
||
'';
|
||
};
|
||
};
|
||
|
||
redis = {
|
||
location = mkOption {
|
||
type = with types; nullOr str;
|
||
default = "unix://${config.services.redis.servers.pretix.unixSocket}?db=0";
|
||
defaultText = literalExpression ''
|
||
"unix://''${config.services.redis.servers.pretix.unixSocket}?db=0"
|
||
'';
|
||
description = ''
|
||
URI to the redis server, used to speed up locking, caching and session storage.
|
||
'';
|
||
};
|
||
|
||
sessions = mkOption {
|
||
type = types.bool;
|
||
default = true;
|
||
example = false;
|
||
description = ''
|
||
Whether to use redis as the session storage.
|
||
'';
|
||
};
|
||
};
|
||
|
||
memcached = {
|
||
location = mkOption {
|
||
type = with types; nullOr str;
|
||
default = null;
|
||
example = "127.0.0.1:11211";
|
||
description = ''
|
||
The `host:port` combination or the path to the UNIX socket of a memcached instance.
|
||
|
||
Can be used instead of Redis for caching.
|
||
'';
|
||
};
|
||
};
|
||
|
||
tools = {
|
||
pdftk = mkOption {
|
||
type = types.path;
|
||
default = getExe pkgs.pdftk;
|
||
defaultText = literalExpression ''
|
||
lib.getExe pkgs.pdftk
|
||
'';
|
||
description = ''
|
||
Path to the pdftk executable.
|
||
'';
|
||
};
|
||
};
|
||
};
|
||
};
|
||
default = { };
|
||
description = ''
|
||
pretix configuration as a Nix attribute set. All settings can also be passed
|
||
from the environment.
|
||
|
||
See <https://docs.pretix.eu/en/latest/admin/config.html> for possible options.
|
||
'';
|
||
};
|
||
};
|
||
|
||
config = mkIf cfg.enable {
|
||
# https://docs.pretix.eu/en/latest/admin/installation/index.html
|
||
|
||
environment.systemPackages = [
|
||
(pkgs.writeScriptBin "pretix-manage" ''
|
||
cd ${cfg.settings.pretix.datadir}
|
||
sudo=exec
|
||
if [[ "$USER" != ${cfg.user} ]]; then
|
||
sudo='exec /run/wrappers/bin/sudo -u ${cfg.user} ${optionalString withRedis "-g redis-pretix"} --preserve-env=PRETIX_CONFIG_FILE'
|
||
fi
|
||
export PRETIX_CONFIG_FILE=${configFile}
|
||
$sudo ${getExe' pythonEnv "pretix-manage"} "$@"
|
||
'')
|
||
];
|
||
|
||
services = {
|
||
nginx = mkIf cfg.nginx.enable {
|
||
enable = true;
|
||
recommendedGzipSettings = mkDefault true;
|
||
recommendedOptimisation = mkDefault true;
|
||
recommendedProxySettings = mkDefault true;
|
||
recommendedTlsSettings = mkDefault true;
|
||
upstreams.pretix.servers."unix:/run/pretix/pretix.sock" = { };
|
||
virtualHosts.${cfg.nginx.domain} = {
|
||
# https://docs.pretix.eu/en/latest/admin/installation/manual_smallscale.html#ssl
|
||
extraConfig = ''
|
||
more_set_headers Referrer-Policy same-origin;
|
||
more_set_headers X-Content-Type-Options nosniff;
|
||
'';
|
||
locations = {
|
||
"/".proxyPass = "http://pretix";
|
||
"/media/" = {
|
||
alias = "${cfg.settings.pretix.datadir}/media/";
|
||
extraConfig = ''
|
||
access_log off;
|
||
expires 7d;
|
||
'';
|
||
};
|
||
"^~ /media/(cachedfiles|invoices)" = {
|
||
extraConfig = ''
|
||
deny all;
|
||
return 404;
|
||
'';
|
||
};
|
||
"/static/" = {
|
||
alias = "${finalPackage}/${cfg.package.python.sitePackages}/pretix/static.dist/";
|
||
extraConfig = ''
|
||
access_log off;
|
||
more_set_headers Cache-Control "public";
|
||
expires 365d;
|
||
'';
|
||
};
|
||
};
|
||
};
|
||
};
|
||
|
||
postgresql = mkIf (cfg.database.createLocally && cfg.settings.database.backend == "postgresql") {
|
||
enable = true;
|
||
ensureUsers = [ {
|
||
name = cfg.settings.database.user;
|
||
ensureDBOwnership = true;
|
||
} ];
|
||
ensureDatabases = [ cfg.settings.database.name ];
|
||
};
|
||
|
||
redis.servers.pretix.enable = withRedis;
|
||
};
|
||
|
||
systemd.services = let
|
||
commonUnitConfig = {
|
||
environment.PRETIX_CONFIG_FILE = configFile;
|
||
serviceConfig = {
|
||
User = "pretix";
|
||
Group = "pretix";
|
||
EnvironmentFile = optionals (cfg.environmentFile != null) [
|
||
cfg.environmentFile
|
||
];
|
||
StateDirectory = [
|
||
"pretix"
|
||
];
|
||
StateDirectoryMode = "0750";
|
||
CacheDirectory = "pretix";
|
||
LogsDirectory = "pretix";
|
||
WorkingDirectory = cfg.settings.pretix.datadir;
|
||
SupplementaryGroups = optionals withRedis [
|
||
"redis-pretix"
|
||
];
|
||
AmbientCapabilities = "";
|
||
CapabilityBoundingSet = [ "" ];
|
||
DevicePolicy = "closed";
|
||
LockPersonality = true;
|
||
MemoryDenyWriteExecute = false; # required by pdftk
|
||
NoNewPrivileges = true;
|
||
PrivateDevices = true;
|
||
PrivateTmp = true;
|
||
ProcSubset = "pid";
|
||
ProtectControlGroups = true;
|
||
ProtectHome = true;
|
||
ProtectHostname = true;
|
||
ProtectKernelLogs = true;
|
||
ProtectKernelModules = true;
|
||
ProtectKernelTunables = true;
|
||
ProtectProc = "invisible";
|
||
ProtectSystem = "strict";
|
||
RemoveIPC = true;
|
||
RestrictAddressFamilies = [
|
||
"AF_INET"
|
||
"AF_INET6"
|
||
"AF_UNIX"
|
||
];
|
||
RestrictNamespaces = true;
|
||
RestrictRealtime = true;
|
||
RestrictSUIDSGID = true;
|
||
SystemCallArchitectures = "native";
|
||
SystemCallFilter = [
|
||
"@system-service"
|
||
"~@privileged"
|
||
"@chown"
|
||
];
|
||
UMask = "0027";
|
||
};
|
||
};
|
||
in {
|
||
pretix-web = recursiveUpdate commonUnitConfig {
|
||
description = "pretix web service";
|
||
after = [
|
||
"network.target"
|
||
"redis-pretix.service"
|
||
"postgresql.service"
|
||
];
|
||
wantedBy = [ "multi-user.target" ];
|
||
preStart = ''
|
||
versionFile="${cfg.settings.pretix.datadir}/.version"
|
||
version=$(cat "$versionFile" 2>/dev/null || echo 0)
|
||
|
||
pluginsFile="${cfg.settings.pretix.datadir}/.plugins"
|
||
plugins=$(cat "$pluginsFile" 2>/dev/null || echo "")
|
||
configuredPlugins="${concatMapStringsSep "|" (package: package.name) cfg.plugins}"
|
||
|
||
if [[ $version != ${cfg.package.version} || $plugins != $configuredPlugins ]]; then
|
||
${getExe' pythonEnv "pretix-manage"} migrate
|
||
|
||
echo "${cfg.package.version}" > "$versionFile"
|
||
echo "$configuredPlugins" > "$pluginsFile"
|
||
fi
|
||
'';
|
||
serviceConfig = {
|
||
TimeoutStartSec = "15min";
|
||
ExecStart = "${getExe' pythonEnv "gunicorn"} --bind unix:/run/pretix/pretix.sock ${cfg.gunicorn.extraArgs} pretix.wsgi";
|
||
RuntimeDirectory = "pretix";
|
||
Restart = "on-failure";
|
||
};
|
||
};
|
||
|
||
pretix-periodic = recursiveUpdate commonUnitConfig {
|
||
description = "pretix periodic task runner";
|
||
# every 15 minutes
|
||
startAt = [ "*:3,18,33,48" ];
|
||
serviceConfig = {
|
||
Type = "oneshot";
|
||
ExecStart = "${getExe' pythonEnv "pretix-manage"} runperiodic";
|
||
};
|
||
};
|
||
|
||
pretix-worker = recursiveUpdate commonUnitConfig {
|
||
description = "pretix asynchronous job runner";
|
||
after = [
|
||
"network.target"
|
||
"redis-pretix.service"
|
||
"postgresql.service"
|
||
];
|
||
wantedBy = [ "multi-user.target" ];
|
||
serviceConfig = {
|
||
ExecStart = "${getExe' pythonEnv "celery"} -A pretix.celery_app worker ${cfg.celery.extraArgs}";
|
||
Restart = "on-failure";
|
||
};
|
||
};
|
||
|
||
nginx.serviceConfig.SupplementaryGroups = mkIf cfg.nginx.enable [ "pretix" ];
|
||
};
|
||
|
||
systemd.sockets.pretix-web.socketConfig = {
|
||
ListenStream = "/run/pretix/pretix.sock";
|
||
SocketUser = "nginx";
|
||
};
|
||
|
||
users = {
|
||
groups.${cfg.group} = {};
|
||
users.${cfg.user} = {
|
||
isSystemUser = true;
|
||
inherit (cfg) group;
|
||
};
|
||
};
|
||
};
|
||
}
|