Building a Temporal Worker Bridge#

The architecture article evaluated three cross-cluster communication patterns and identified the worker bridge as the best fit for most open-source Temporal deployments. This article builds the bridge.

The worker bridge is a single binary that holds connections to two Temporal clusters. It polls Cluster A for tasks on a dedicated queue and executes those tasks using Cluster B’s resources – its Temporal client, databases, APIs, and services. From Cluster A’s perspective, the bridge is just another worker. From Cluster B’s perspective, the bridge is just another client starting workflows.