📝 Update Readme.md

Author: nmdra

README.md

@@ -10,6 +10,7 @@ This section highlights the modifications made to the original project as descri
 
 - Creating a Docker-driven Go development workflow
 - Add live realod using [air-verse/air](https://github.com/air-verse/air)
+- Add Docker image (production)
 
 ---
 ## Setup Mysql docker container 
@@ -100,6 +101,65 @@ SELECT user, host FROM mysql.user;
 dsn := flag.String("dsn", "web:pass@tcp(mysql:3306)/snippetbox?parseTime=true", "MySQL data source name")
 ```
 
+## Docker Compose Production
+
+> [!TIP]
+> Create self signed tls certificate & create `.env` before run docker compose
+> the generate_cert.go file should be located under  `/usr/local/go/src/crypto/tls` or `/usr/lib/go/src/crypto/tls` (Manjaro/Arch)
+> 
+> #### Generate Certificate
+> ```bash
+> mkdir -p tls
+> cd tls
+> go run /usr/local/go/src/crypto/tls/generate_cert.go --rsa-bits=2048 --host=localhost
+> ``` 
+
+```yml
+services:
+  web:
+    image: ghcr.io/nmdra/snipbox:latest
+    container_name: snipbox-prod
+    ports:
+      - "4000:4000" # default app port
+    env_file:
+      - .env
+    volumes:
+      - ./tls/:/tls/ # TLS cert directory
+    networks:
+      - snipbox-net
+    depends_on:
+      db:
+        condition: service_healthy
+
+  db:
+    image: mysql:lts 
+    # container_name: snipbox-db
+    restart: unless-stopped
+    environment:
+      MYSQL_ROOT_PASSWORD: root
+      MYSQL_DATABASE: snippetbox
+      MYSQL_USER: web
+      MYSQL_PASSWORD: pass
+    ports:
+      - "3306:3306" # Expose MySQL port (Optional)
+    volumes:
+      - mysql-data:/var/lib/mysql
+    networks:
+      - snipbox-net
+    healthcheck:
+      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
+      interval: 5s
+      timeout: 5s
+      retries: 2
+  
+volumes:
+  mysql-data:
+    external: true
+
+networks:
+  snipbox-net:
+    driver: bridge
+```
 
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