The Orchestrator has two functions. Its first role is to handle the ledger containing all known assets. It also dispatches tasks to the relevant Organizations.
This is the database supporting the ledger. You should back up the data of this Pod.
This is the actual orchestration service, accessed over gRPC.
This Pod is managed by a Job running on Helm chart installation or update. It deals with database schema changes.
The Orchestrator is a central component. All Backends from each Organization must have access to the Orchestrator over gRPC for command/queries and event subsription.
The Orchestrator authenticates clients with their TLS certificates. As a consequence, the Kubernetes Ingress must do SSL passthrough.
The Orchestrator stores its data in a PostgreSQL database. Migrations are executed using a Kubernetes Job on installation and update (this relies on a Helm hook).