Learn the reasons to use application databases and explicit publishing of data in your architecture, and how to manage growth in your data scope and size.
Learn common database patterns for microservices, explore CQRS (including how it differs from CRUD), and, finally, how it can be combined with event sourcing.
AWS Database Migration Service provides heterogeneous migrations between different platforms. See the migration scenario between DocumentDB and MongoDB Atlas on AWS.
You can use Linkerd as a service mesh with Kubernetes, helping to manage communications for cloud-native apps and services while also feeding you data.
A simple Spring Boot application with Data JPA (Hibernate) using embedded Hazelcast for the second-level cache with the support of the Kubernetes cluster.