Add container simulation with PostgreSQL and SQLite support

apps/container/src/main.rs

@@ -0,0 +1,53 @@
+use clap::Parser;
+use container::Config;
+use container::start_attached;
+
+use container::db::DBInfo;
+
+/// Command line arguments
+#[derive(Parser, Debug)]
+#[command(author, version, about, long_about = None)]
+struct Args {
+    /// Database type to use: 'postgres' or 'sqlite'. Can also be set with DB_TYPE env var.
+    #[arg(long, default_value = "sqlite", env = "DB_TYPE")]
+    db_type: String,
+}
+
+#[tokio::main]
+async fn main() {
+    // Parse command line arguments and environment variables
+    let args = Args::parse();
+
+    println!("Starting container with database type: {}", args.db_type);
+    let db_config = match args.db_type.to_lowercase().as_str() {
+        "postgres" | "pg" | "pgsql" => {
+            use container::db::postgresql::PostgreSQLContainer;
+            println!("Using PostgreSQL database");
+            PostgreSQLContainer::new(None)
+                .await
+                .get_db_container_config_info()
+                .await
+        }
+        "sqlite" | "sql" => {
+            println!("Using SQLite database");
+            use container::db::sqlite::SQLiteContainer;
+            SQLiteContainer::new(None)
+                .await
+                .get_db_container_config_info()
+                .await
+        }
+        other => {
+            eprintln!("Unknown db_type: {}. Use 'postgres' or 'sqlite'", other);
+            std::process::exit(1);
+        }
+    };
+    println!("Database configuration obtained.");
+
+    let config = Config {
+        database: db_config,
+    };
+
+    println!("Starting container...");
+    start_attached(&config).await;
+    println!("Container stopped. Exiting...");
+}