add instructions

README.md

@@ -0,0 +1,39 @@
+# Installation Script for OpenEMS
+
+This installation script automates the setup of OpenEMS on a server. It performs the following tasks:
+
+1. **Host Configuration**: Prompts the user to enter the host name for the server. If no input is provided, it defaults to the current hostname.
+
+2. **UI Default Setting**: Asks the user if they want to set the OpenEMS UI as the default for the server. If confirmed, it warns that this will override the default Nginx configuration.
+
+3. **Package Installation**: Updates the package list and installs the required packages, including OpenJDK 17, Nginx, and Wget.
+
+4. **OpenEMS Service Setup**: Downloads the OpenEMS system service configuration and sets up the necessary directories and files for OpenEMS.
+
+5. **Nginx Configuration**: Sets up the Nginx server to serve the OpenEMS UI, including downloading the UI files and configuring the Nginx site.
+
+6. **Service Management**: Reloads the systemd manager configuration, enables, and starts the OpenEMS service, and restarts Nginx to apply the new configuration.
+
+### Installation Instructions
+
+You can install OpenEMS by following these steps:
+
+1. Download the installation script:
+```bash
+curl -O https://git.mumme-it.de/Mumme-IT/openems-build/src/branch/main/installation/install-openems.sh
+```
+
+2. Review the script contents (recommended for security):
+```bash
+less install-openems.sh
+```
+
+3. Make the script executable:
+```bash
+chmod +x install-openems.sh
+```
+
+4. Run the script with sudo:
+```bash
+sudo ./install-openems.sh
+```