Architecture

Full architecture

A developer only ever talks to Backstage. Everything after that is Git, and the automation that reconciles it.

Git is the system of record. Golden paths open pull requests; a person merges them. Platform intent (Component, Release, Database, DatabaseSchema) and deployment state live in one GitOps repository.
The management cluster runs only the platform. Argo CD applies Git to it and reaches out to the workload clusters, which run only services. Nothing in a workload cluster can change the platform.
Runtime state flows back. Rollout status, health and metrics from every environment end up in the same portal the request started from.