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You have applied the Microservice architecture pattern.
How to understand the behavior of an application and troubleshoot problems?
Log every deployment and every change to the (production) environment.
A deployment tool can, for example, publish a pseudo-metric whenever it deploys a new version of a service. This metric can then be displayed alongside other metrics enabling changes in application behavior to be correlated with deployments. See Tracking Every Release by Mike Brittain
AWS Cloud Trail provides logs of AWS API calls.
This pattern has the following benefits:
Application architecture patterns
Cross cutting concerns