added build-time information

docs/deployment.md

@@ -0,0 +1,68 @@
+## Deployment Setup
+### On the Server
+Navigate to the service directory on the server
+```bash
+cd /virt
+```
+Clone the repository
+```bash
+git clone --depth 1 https://gitea.virtonline.eu/2HoursProject/nexus-timer.git
+cd nexus-timer
+```
+Build the docker image
+```bash
+docker build -t virt-nexus-timer .
+```
+## Exposing the App Behind Traefik (Reverse Proxy)
+### Review the provided docker labels and systemd service file
+
+Copy the example label file to its destination
+```bash
+cp docker/traefik.labels labels
+```
+View the example service definition:
+```bash
+cat systemd/virt-nexus-timer.service
+```
+### Create the systemd service  
+Use the editor to create or overwrite the service:
+```bash
+sudo systemctl edit --force --full virt-nexus-timer.service
+```
+Paste the content from `systemd/virt-nexus-timer.service`, then save and exit.
+
+Enable on system boot and start the service
+```bash
+sudo systemctl enable --now virt-nexus-timer.service
+```
+Check the service status
+```bash
+systemctl status virt-nexus-timer.service
+```
+View real-time logs
+```bash
+journalctl -fu virt-nexus-timer.service
+```
+### Test the web application
+Verify that the application is accessible via HTTPS:
+```bash
+curl https://nexus-timer.virtonline.eu
+```
+Or open it in your browser:
+[https://nexus-timer.virtonline.eu](https://nexus-timer.virtonline.eu)
+
+## Release the update
+### On the Server
+Navigate to the app directory on your server
+```bash
+cd /virt/nexus-timer
+```
+Pull the changes, build the docker image and restart the service
+```bash
+git pull && docker build -t virt-nexus-timer . && systemctl restart virt-nexus-timer.service
+```
+View real-time logs
+```bash
+journalctl -fu virt-nexus-timer.service
+```
+The previously installed PWA should update automatically or offer an upgrade