Hosting Excalidraw Real-Time Whiteboarding on Rocky Linux 8

#### Prerequisites Before you begin, ensure you have: - A server running Rocky Linux 8 (This guide is tested with Rocky Linux 8) - Docker installed on your server - A user account with sudo privileges - Basic familiarity with the command line #### Step 1: Install Docker on Rocky Linux 8 Ensure Docker is installed and running on your system. If not installed, follow these steps: ```bash sudo dnf update sudo dnf install dnf-plugins-core sudo dnf config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo sudo dnf install docker-ce docker-ce-cli containerd.io sudo systemctl start docker sudo systemctl enable docker ``` #### Step 2: Set Up Excalidraw with Docker Create a directory for Excalidraw and navigate into it: ```bash mkdir excalidraw cd excalidraw ``` Create a Docker Compose file `docker-compose.yml` for Excalidraw: ```yaml version: '3' services: excalidraw: image: excalidraw/excalidraw container_name: excalidraw ports: - "3000:3000" restart: always ``` Save and close the file. #### Step 3: Start Excalidraw Container Start the Excalidraw container using Docker Compose: ```bash sudo docker-compose up -d ``` #### Step 4: Access Excalidraw Open your web browser and navigate to your server's IP address or domain followed by port `3000` (e.g., `http://your_server_ip:3000`). You should see the Excalidraw interface. #### Step 5: Optional - Configure Reverse Proxy (Nginx) To access Excalidraw using a domain name and secure it with SSL, set up an Nginx reverse proxy. Create an Nginx server block configuration file: ```bash sudo nano /etc/nginx/conf.d/excalidraw.conf ``` Add the following configuration (adjust domain and paths as necessary): ```nginx server { listen 80; server_name excalidraw.example.com; location / { proxy_pass http://localhost:3000; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; proxy_set_header X-NginX-Proxy true; proxy_redirect off; } } ``` Save and close the file. Test Nginx configuration: ```bash sudo nginx -t sudo systemctl restart nginx ``` #### Step 6: Secure Excalidraw (Optional) Secure your Excalidraw instance by configuring firewalls (e.g., UFW) and implementing SSL/TLS certificates if needed. #### Conclusion You have successfully hosted Excalidraw on Rocky Linux 8. Collaborate visually with others in real-time using this powerful whiteboarding tool. **Additional Resources:** - **Excalidraw GitHub Repository:** [https://github.com/excalidraw/excalidraw](https://github.com/excalidraw/excalidraw) - **Docker Documentation:** [https://docs.docker.com/](https://docs.docker.com/) - **Rocky Linux Documentation:** [https://docs.rockylinux.org/](https://docs.rockylinux.org/)