start prod docker migration

.env.prod.example

@@ -0,0 +1,20 @@
+# Copy this to .env.prod on the server and fill in production values (do NOT commit secrets).
+
+# Django
+SECRET_KEY=replace-me-with-a-secure-random-string
+DEBUG=0
+ALLOWED_HOSTS=example.com
+
+# External DB (you mentioned production uses an external DB)
+DATABASE_HOST=your.db.host
+DATABASE_PORT=5432
+DATABASE_NAME=rad
+DATABASE_USER=django
+DATABASE_PASSWORD=strong-db-password
+
+# Redis
+REDIS_URL=redis://redis:6379/0
+
+# Gunicorn tuning
+GUNICORN_WORKERS=3
+GUNICORN_LOGLEVEL=info