And the compose deploy now works

src/main.rs

@@ -5,19 +5,26 @@ use axum::{Extension, Router};
 use std::net::SocketAddr;
 use axum::routing::{get, post};
 use clap::Parser;
+use sea_orm::{ConnectionTrait, DatabaseConnection};
 use migration::{Migrator, MigratorTrait};
+use crate::error::AppError;
 use crate::ingestion::ingestion::{monzo_batched_csv, monzo_batched_json, monzo_updated};
 
 #[derive(Debug, clap::Parser)]
 struct Config {
-    #[clap(short, long, env)]
+    #[clap(short, long, env, default_value = "0.0.0.0:3000")]
     addr: SocketAddr,
     #[clap(short, long = "db", env)]
     database_url: String,
 }
 
-async fn health_check() -> &'static str {
-    "Ok"
+async fn health_check(
+    Extension(db): Extension<DatabaseConnection>,
+) -> Result<&'static str, AppError> {
+    db.execute_unprepared("SELECT 1")
+        .await?;
+
+    Ok("Ok")
 }
 
 #[tokio::main]