Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Mastering Kubernetes

You're reading from   Mastering Kubernetes Dive into Kubernetes and learn how to create and operate world-class cloud-native systems

Arrow left icon
Product type Paperback
Published in Jun 2023
Publisher Packt
ISBN-13 9781804611395
Length 746 pages
Edition 4th Edition
Arrow right icon
Author (1):
Arrow left icon
Gigi Sayfan Gigi Sayfan
Author Profile Icon Gigi Sayfan
Gigi Sayfan
Arrow right icon
View More author details
Toc

Table of Contents (21) Chapters Close

Preface 1. Understanding Kubernetes Architecture 2. Creating Kubernetes Clusters FREE CHAPTER 3. High Availability and Reliability 4. Securing Kubernetes 5. Using Kubernetes Resources in Practice 6. Managing Storage 7. Running Stateful Applications with Kubernetes 8. Deploying and Updating Applications 9. Packaging Applications 10. Exploring Kubernetes Networking 11. Running Kubernetes on Multiple Clusters 12. Serverless Computing on Kubernetes 13. Monitoring Kubernetes Clusters 14. Utilizing Service Meshes 15. Extending Kubernetes 16. Governing Kubernetes 17. Running Kubernetes in Production 18. The Future of Kubernetes 19. Other Books You May Enjoy
20. Index

Separating internal and external services

Internal services are services that are accessed directly only by other services or jobs in the cluster (or administrators that log in and run ad-hoc tools). There are also workloads that are not accessed at all. These workloads may watch for some events and perform their function without exposing any API.

But some services need to be exposed to users or external programs. Let’s look at a fake Hue service that manages a list of reminders for a user. It doesn’t really do much - just returns a fixed list of reminders - but we’ll use it to illustrate how to expose services. I already pushed a hue-reminders image to DockerHub:

docker push g1g1/hue-reminders:3.0

Deploying an internal service

Here is the deployment, which is very similar to the Hue-learner deployment, except that I dropped the annotations, env, and resources sections, kept just one or two labels to save space, and added a ports section to the container. That...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime