Now rading database from env var

src/main.rs

@@ -1,3 +1,5 @@
+use std::{env, process};
+
 use crate::schemas::{TelemetryMessageFromDevice, ValueMessageFromDevice};
 use actix_web::{get, http::StatusCode, post, web, App, HttpResponse, HttpServer, Responder};
 use database::Database;
@@ -102,8 +104,17 @@ async fn main() -> std::io::Result<()> {
     env_logger::init();
     info!("Starting");
 
-    info!("Connecting to Database");
-    let db = Database::init("db", "dev", "dev", "iot").await;
+    
+    let db_url = match env::var("DATABASE_URL") {
+        Ok(url) => url,
+        Err(e) => {
+            error!("Failed reading DATABASE_URL");
+            process::exit(1);
+        }
+    };
+    info!("Connecting to Database {}", db_url);
+
+    let db = Database::init(&db_url).await;
     db.init_db().await;
 
     HttpServer::new(move || {