Build an Orchestrator in Go (From Scratch)

7 The manager enters the room

This chapter covers

• Reviewing the purpose of the manager
• Designing a naive scheduling algorithm
• Implementing the manager’s methods for scheduling and updating tasks

In chapters 4, 5, and 6, we implemented the Worker component of Cube, our orchestration system. We focused on the core functionality of the worker in chapter 4, which enabled the worker to start and stop tasks. In chapter 5, we added an API to the worker. This API wrapped the functionality we built in chapter 4 and made it available from standard HTTP clients (e.g., curl). And finally, in chapter 6, we added the ability for our worker to collect metrics about itself and expose those on the same API. With this work, we can run multiple workers, with ...