Update README.md

README.md

@@ -71,9 +71,70 @@ pip install -r requirements.txt
 Ensure the virtual environment is activated
 Confirm .env is present with correct values
 
-
 Run the program script
 python services/telegram_listener.py
 Verify the Bot Is Running
 Check console output for post messages (new and historical)
-Confirm CSV file is created/updated with captured post data
+Confirm CSV file is created/updated with captured post data.
+
+
+
+**🐳 Running the Telegram Listener in Docker**
+1. Prerequisites
+
+Make sure you have:
+
+Docker and Docker Compose installed
+A valid Telegram API ID and API Hash
+A session_name.session file generated by running the script locally once
+
+2. Project Setup
+
+Create a .env file in the project root (Skip if already created) :
+
+API_ID=your_api_id
+API_HASH=your_api_hash
+SESSION=session_name
+
+
+Ensure your project contains:
+
+Dockerfile
+docker-compose.yaml
+session_name.session file (from your local run)
+3. Build the Docker Image
+
+docker-compose build
+
+4. Start the Container
+5. 
+docker-compose up
+
+The container will:
+
+Load environment variables from .env
+Use the existing session_name.session file for authentication
+Start fetching data from Telegram immediately
+
+5. Stop the Container
+
+To stop gracefully (Telethon disconnects cleanly):
+
+docker-compose down
+
+or:
+docker stop telegram_bot
+
+6. Logs
+
+View logs in real-time:
+docker logs -f telegram_bot
+
+7. Notes
+Don’t add session_name.session to .dockerignore
+Keep session_name.session in .gitignore (never commit it)
+The container will auto-restart if it crashes (restart: always)
+
+
+
+The Telethon-based Telegram listener is now fully Dockerized and production-ready.