Cross Cluster Deployments

[davidmdm]

Context

Currently the ATC only functions within the cluster it is deployed within.

If a user creates an Airway for "Backends", when backends are created in a namespace, the backend flight implementation is deployed within that namespace.

However it is a common pattern to have "Control" clusters that manage "Workload" clusters.

Ideally via some configuration/mechanism the following would hold true:

• A user creates an Airway
• User creates a CR associated to the Airway
• Package is deployed to a target cluster.

How this would happen is unclear.

Ideas (Feedback welcome):

• Configure at the Airway Level a mapping from Namespace -> External-Cluster + Namespace.
• Allow CRs to have special annotations that would deploy them to an external cluster?
• Other?