Transition to Docker-based framework

database.py

@@ -1,10 +1,11 @@
+import os
 from sqlalchemy import create_engine, Column, Integer, String
 from sqlalchemy.ext.declarative import declarative_base
 from sqlalchemy.orm import sessionmaker
 
-DATABASE_URL = "sqlite:///./multichat.db"
+DATABASE_URL = os.environ.get("DATABASE_URL")
 
-engine = create_engine(DATABASE_URL, connect_args={"check_same_thread": False})
+engine = create_engine(DATABASE_URL)
 SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
 Base = declarative_base()
 
@@ -32,6 +33,3 @@ def get_db():
 
 def create_tables():
     Base.metadata.create_all(bind=engine)
-
-if __name__ == "__main__":
-    create_tables()