June 2019
Intermediate to advanced
117 pages
2h 28m
English
Content preview from Microservices for Java Developers, 2nd Edition
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Chapter 8. Where Do We Go from Here?
We have covered a lot in this report, but we certainly didn’t cover everything! Keep in mind we are just scratching the surface here, and there are many more things to consider in a microservices environment than what we could explore in this report. In this final chapter, we’ll very briefly talk about a couple of additional concepts you should be aware of. We’ll leave it as an exercise for the reader to dig into more detail for each section!
Configuration
Configuration is a very important part of any distributed system, and it becomes even more difficult with microservices. We need to find a good balance between configuration and immutable delivery because we don’t want to end up with snowflake services. For example, we’ll need to be able to change logging, switch on features for A/B testing, configure database connections, and use secret keys or passwords. We saw in some of our examples how to configure our microservices using each of the three Java frameworks presented here, but each framework does configuration slightly differently. What if we have microservices written in Python, Scala, Golang, Node.js, etc.?
To be able to manage configuration across technologies and within containers, we need to adopt an approach that works regardless of what’s actually running in the containers. In a Docker environment, we can inject environment variables and allow our application to consume those environment variables. Kubernetes allows us to do that ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.