Friday, September 12, 2014

Automatic Docker Service Announcement with Registrator

No matter which service discovery system you use, it will not likely know how to register your services for you. Service discovery requires your services to somehow announce themselves to the service directory. This is not as trivial as it sounds. There are many approaches to do this, each with their own pros and cons.

In an ideal world, you wouldn't have to do anything special. With Docker, we can actually arrange this with a component I've made called Registrator.

Before I get to Registrator, let's understand what it means to register a service and see what kind of approaches are out there for registering or announcing services. It might also be a good idea to see my last posts on Consul and on service discovery in general.

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