Update backstage.md

Author: sina-schlatter

presentations/idp/home/backstage.md

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+
 # /Backstage
 
 - A framework developed by Spotify
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 ---
 
+
+### /THE Backstage Platform
+
+**Backstage** is an open platform for building Internal Developer Portals, originally created by Spotify.
+
+<img src="https://backstage-spotify-com.spotifycdn.com/_next/static/media/twitter-summary-default.e17fd878.png" alt="Backstage Logo" style="width: 30%; margin: 1rem 0;" />
+
+- 🧩 **Plugin-based architecture** — tailor it to your platform
+- 📚 **Software Catalog** — track ownership, metadata & lifecycle
+- 🚀 **Scaffolder** — bootstrap new services with templates
+- 📊 **TechDocs** — docs-as-code, surfaced directly in the UI
+- 🔌 **Ecosystem integrations** — GitHub, Argo CD, Kubernetes
+
+---
+
 ### Backstage Concept
 
 - Core: Base functionalities built by open-source project
 - App: An instance deployed (Customized & Glues core with plugins
 - Plugins: Extends core functionalities
 
 
+---
+
+### / GITLAB AUTHENTICATION
+
+<img src="images/gl-auth.png" alt="Alt Text" width="7000" style="border: none; box-shadow: none;" />
+
+- No need to manage a separate user database for Backstage
+- Fine-grained access control based on GitLab org structure
+
+---
+
+### /SOFTWARE CATALOG
+
+- Central place to manage all your software
+- Supports components like services, libraries, APIs, resources
+- YAML-based definitions (`catalog-info.yaml`)
+
+
+---
+
+### / SOFTWARE TEMPLATES
+
+
+---
+
+### /SOFTWARE TEMPLATE OVERVIEW
+
+
+---
+
+### /SOFTWARE TEMPLATE DIALOG (CROSSPLANE RESOURCE)
+
+
+---
+
+### /TEMPLATE DEFINITION
+
+
+- Presents input parameters to the user (via Backstage UI)
+- Uses those parameters to generate code from a template repo
+
+---
+
+### /NAMESPACE TEMPLATE
+
+
+- Namespace Creation w/ Crossplane
+- Nunjucks is a templating language created by Mozilla
+
+---
+
+### /CATALOG TEMPLATE
+
+
+- 🔁 From input → templated code → Git repo → deployment = self-service, production-ready infrastructure.
+
+---
+
+### /MERGE REQUEST ACTION
+
+
+- Backstage can create a merge/pull request
+— allowing teams to review changes before merging
+
+---
+
+### /Crossplane Lifecycle Process
+
+
+---
+
+
+### /SOFTWARE TEMPLATES
+
+
+---
+
+### /KRO DB-CLAIM
+
+
+- Kro will render a Kubernetes Deployment, Secret, Service, and PVC based on this claim
+
+---
+
+### / SOFTWARE TEMPLATES
+
+
+---
+
+### / SOFTWARE TEMPLATES - CUSTOMER GROUPS
+
+
+---
+
+### / SOFTWARE TEMPLATES - CUSTOMER GROUPS
+
+
+---
+
+
+### /SOFTWARE TEMPLATES - CUSTOMER GROUPS
+
+
+---
+
+### CI/CD GITLAB PIPELINES
+
+
+
+---
+
+### /KUBERNETES
+
+
+- Detailed view of Kubernetes Clusters
+
+
+---
+
+### /TECHDOCS
+
+
+
+---
+
+### /TECHDOCS
+
+- TechDocs View in Backstage
+
+
+
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