add dockerfile for hosting purposes

docker-compose.yml

@@ -10,5 +10,15 @@ services:
       POSTGRES_DB: local
     volumes:
       - pgdata:/var/lib/postgresql/data
+  server:
+    build: .
+    pull_policy: always
+    restart: always
+    ports:
+      - 127.0.0.1:3000:3000
+    environment:
+      DATABASE_URL: postgres://root:mysecretpassword@db:5432/local
+    depends_on:
+      - db
 volumes:
   pgdata: