Add deployment instructions

README.md

@@ -73,3 +73,32 @@ You can export and import your graph by clicking the "Download JSON" and "Upload
 # Credits
 
 - Font used in Logo - [Excon by Indian Type Foundry](https://www.fontshare.com/fonts/excon)
+
+# CI/CD
+
+## Set up Github Actions Secrets
+
+- `REGISTRY_HOST` - The host of the registry (e.g. `ghcr.io`)
+- `REGISTRY_USER` - The username of the registry
+- `REGISTRY_PASS` - The password for the given username
+
+## Deployment
+
+The `docker-image.yml` workflow will push the image to the registry on every push to the `main` branch.
+You can then deploy it with a docker-compose file like this:
+
+```yaml
+services:
+  nodiris:
+    image: ${REGISTRY_HOST}/${IMAGE_NAME}:latest
+    container_name: NODIRIS
+    restart: always
+    environment:
+        - DEPLOYMENT_URL=${DEPLOYMENT_URL}
+        - MYSQL_URL=${MYSQL_URL}
+        - MYSQL_USER=${MYSQL_USER}
+        - MYSQL_PASSWORD=${MYSQL_PASSWORD}
+        - SESSION_SECRET=${SESSION_SECRET}
+    ports:
+      - "${PORT_NODIRIS}:3001"
+```