Drop handling of service reload; switch to std OnceLock

crates/defguard/src/main.rs

@@ -40,15 +40,17 @@ async fn main() -> Result<(), anyhow::Error> {
         dotenvy::dotenv().ok();
     }
     let config = DefGuardConfig::new();
-    SERVER_CONFIG.set(config.clone())?;
+    SERVER_CONFIG
+        .set(config.clone())
+        .expect("Failed to initialize server config.");
 
     // initialize tracing with version formatter
     defguard_version::tracing::init(
         defguard_version::Version::parse(VERSION)?,
         &config.log_level,
     )?;
 
-    info!("Starting ... version v{}", VERSION);
+    info!("Starting ... version v{VERSION}");
     debug!("Using config: {config:?}");
 
     let pool = init_db(

crates/defguard_core/src/config.rs

@@ -233,7 +233,7 @@ impl DefGuardConfig {
     }
 
     // Check if cookie domain value was provided.
-    // If not generate it based on URL.
+    // If not, generate it based on URL.
     fn validate_cookie_domain(&mut self) {
         if self.cookie_domain.is_none() {
             self.cookie_domain = Some(

crates/defguard_core/src/lib.rs

@@ -3,7 +3,7 @@
 #![allow(clippy::result_large_err)]
 use std::{
     net::{IpAddr, Ipv4Addr, SocketAddr},
-    sync::{Arc, Mutex},
+    sync::{Arc, Mutex, OnceLock},
 };
 
 use anyhow::anyhow;
@@ -63,7 +63,6 @@ use sqlx::PgPool;
 use tokio::{
     net::TcpListener,
     sync::{
-        OnceCell,
         broadcast::Sender,
         mpsc::{UnboundedReceiver, UnboundedSender},
     },
@@ -178,7 +177,7 @@ extern crate serde;
 pub static MIGRATOR: sqlx::migrate::Migrator = sqlx::migrate!("../../migrations");
 
 pub const VERSION: &str = concat!(env!("CARGO_PKG_VERSION"), "-", env!("VERGEN_GIT_SHA"));
-pub static SERVER_CONFIG: OnceCell<DefGuardConfig> = OnceCell::const_new();
+pub static SERVER_CONFIG: OnceLock<DefGuardConfig> = OnceLock::new();
 
 pub(crate) fn server_config() -> &'static DefGuardConfig {
     SERVER_CONFIG

defguard.service

@@ -7,7 +7,6 @@ After=network-online.target
 [Service]
 DynamicUser=yes
 User=defguard
-ExecReload=/bin/kill -HUP $MAINPID
 EnvironmentFile=/etc/defguard/core.conf
 ExecStart=/usr/bin/defguard
 KillMode=process