Previously, to keep track of the names and locations of microservice fleets that scale up and down in real time, you had two choices. Either you had to maintain custom scripts to directly control DNS records and health checks, or you had to deploy and manage third-party software. Amazon Route 53 Auto Naming abstracts away the complexity of managing DNS and health checks by providing a set of APIs for service naming configuration and service instance management.
Now, when a new service instance is registered, you can access it by making a simple DNS query for the service name. Amazon Route 53 Auto Naming uses the multivalue answer routing type, which returns up to eight records in each response to a DNS query. If you defined a health check for the service, Amazon Route 53 returns only the records associated with healthy endpoints. You
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