Persist database in the Docker container (#136)

* Persist database in the Docker container

* Revert "Persist database in the Docker container"

This reverts commit e825ffb2c2a5bb8f4cc333ae041cc23789dc7272.

* Persist the database without modifying the Dockerfile and settings.env

docker-compose.yaml

@@ -39,6 +39,9 @@ services:
       - "8080:8080"
     env_file:
       - ./config/ssl/settings.env
+    volumes:
+      - .:/project
+    working_dir: /project
 
   stunnel:
     image: ras-stunnel:5.75-openssl-1.0.2u