v0.1.1

src/config.rs

@@ -492,11 +492,11 @@ impl AppConfig {
                 return Err("Redis sessions require REDIS_URL or REDIS_SENTINEL_NODES + REDIS_SENTINEL_MASTER".to_string());
             }
         }
-        if self.cluster_mode
-            && self.session_backend == "database"
-            && self.database_backend == "sqlite"
-        {
-            return Err("CLUSTER_MODE with database sessions requires mysql/pgsql, or configure SESSION_BACKEND=redis".to_string());
+        if self.cluster_mode && self.database_backend == "sqlite" {
+            return Err(
+                "CLUSTER_MODE requires a shared mysql/pgsql application database; Redis only replaces session persistence"
+                    .to_string(),
+            );
         }
         if (self.cluster_mode
             || self.session_backend == "redis"
@@ -809,4 +809,18 @@ mod tests {
             vec![TrustedProxy::Ip("127.0.0.1".parse().unwrap())]
         );
     }
+
+    #[test]
+    fn cluster_mode_rejects_local_sqlite_even_with_redis_sessions() {
+        let config = AppConfig {
+            database_backend: "sqlite".to_string(),
+            session_backend: "redis".to_string(),
+            redis_url: Some("redis://127.0.0.1:6379/".to_string()),
+            session_encryption_key: Some("configured-shared-key".to_string()),
+            cluster_mode: true,
+            ..AppConfig::default()
+        };
+        let error = config.validate().unwrap_err();
+        assert!(error.contains("shared mysql/pgsql application database"));
+    }
 }