✨ Add support for setting POSTGRES_PORT (#333)

Co-authored-by: Martin Conraux <rhodes@protonmail.com>
Co-authored-by: Sebastián Ramírez <tiangolo@gmail.com>

backend/app/alembic/env.py

@@ -32,8 +32,9 @@ def get_url():
     user = os.getenv("POSTGRES_USER", "postgres")
     password = os.getenv("POSTGRES_PASSWORD", "")
     server = os.getenv("POSTGRES_SERVER", "db")
+    port = os.getenv("POSTGRES_PORT", "5432")
     db = os.getenv("POSTGRES_DB", "app")
-    return f"postgresql+psycopg://{user}:{password}@{server}/{db}"
+    return f"postgresql+psycopg://{user}:{password}@{server}:{port}/{db}"
 
 
 def run_migrations_offline():