AWS Gateway Controller multicluster plugin

[evgeniy-khatko]

Hi,

Context

We're using Argo Rollouts to deploy services. Our infrastructure setup includes two constraints:

• We use muti-cluster deployments in which a single service is deployed into multiple clusters as part of the rollout
• We use AWS Lattice and Gateway Controller with ServiceExports/Imports. So called "config-cluster" setup.
• Having the config-cluster setup means that HTTPRoute resource resides in a cluster different from the workload clusters where the services are.

We'd like to understand is there's way to integrate this setup with Argo Rollouts. We looked through this existing issue and this issue but unfortunately did not find it specific enough to answer my question. We're aware of Karmada, but moving to it seems to take time.

Things we considered

Custom traffic manager

• Implement a Lattice specific traffic management plugin which would work with ConfigCluster setup.

Default traffic management through replicas count

• Based on this paragraph argo rollout works without dedicated traffic manager by splitting the traffic based on Service pods.

[kostis-codefresh]

Regarding the Lattice specific plugin, this seems to work already with the Gateway API plugin https://github.com/argoproj-labs/rollouts-plugin-trafficrouter-gatewayapi/tree/main/examples/aws-gateway-api-controller-lattice

Regarding your second question, Argo Rollouts always works within a single cluster.