Here is a tutorial on how to use NiFi 1.0.0's zero-master clustering that uses Zookeeper so that there is never an issue of a cluster dying because of one master node going down.
Want to learn how to build an application with service discovery and client-side load balancing? Check out this post to learn more about using Eureka and Ribbon.
Look at containerizing a Spring Data Cassandra Application. More specifically, how to put a Spring application that connects to a Cassandra database into containers.
Want to learn more about messaging with RabbitMQ? Check out this tutorial on how to create a message producer with Spring Boot and the RabbitMQ in PCF.
If you aren't familiar with this concept, then it's time to fix that with this post. Learn about what serverless is and what you need to know about it.
Want to learn more about the features available in Spring Boot? Check out this post to learn more about how to use profiles in your Spring Boot application.