Add open_signup config flag

src/server/config.rs

@@ -1,5 +1,10 @@
 use serde::Deserialize;
 
+#[derive(Debug, Clone, Deserialize)]
+pub struct AuthConfig {
+    pub open_signup: bool,
+}
+
 /// Build a connection URI from parts
 fn format_uri(
     scheme: &str,
@@ -134,6 +139,7 @@ impl KeyValStoreConfig {
 #[derive(Debug, Clone, Deserialize)]
 /// Top-level application configuration
 pub struct Config {
+    pub auth: AuthConfig,
     pub database: DatabaseConfig,
     pub key_val_store: KeyValStoreConfig,
 }
@@ -146,6 +152,7 @@ pub fn load_config() -> Result<Config, config::ConfigError> {
 
     config::Config::builder()
         .set_default("server.port", 8080)?
+        .set_default("auth.open_signup", false)?
         .add_source(File::with_name(&format!("/etc/{pkg_name}/config")).required(false))
         .add_source(File::with_name(&format!("/etc/{pkg_name}")).required(false))
         .add_source(File::with_name("config").required(false))