Operators extend Kubernetes by automating software configuration and maintenance activities that are typically performed by human operators. Operators also automate other more complex lifecycle management tasks such as version upgrades, failure recovery, and scaling.

Unsure if you need an operator?
Find out why and when you should use Kubernetes Operators to automate human tasks.

This learning path consists of a series of articles that introduce you to key concepts related to Kubernetes Operators, and a tutorial that shows you how to develop and deploy a basic operator.

100: Introduction to Kubernetes Operators
101: Use Kubernetes operators to extend Kubernetes’ functionality
200: Tutorial: Develop and deploy a basic Kubernetes operator
201: Deep dive into Memcached Operator code

Distribute your service to service catalogs by following these steps:

Create a well-designed container image
Optionally, certify the container image
Design a security context
Develop an operator (this learning path)
Optionally, certify the operator
Publish your service in service catalogs, such as Red Hat Marketplace

Additionally, you will learn how to build operators at all capability levels.

Intro to Kubernetes Operators video

For a quick introduction, start with a video introducing Kubernetes Operators.

Outcomes

After completing this learning path, you will have:

A high-level understanding of what Kubernetes Operators are, what they do, and key features
An in-depth understanding of operators, including the operator structure, how deployments works in operators, and how the reconciliation loop works
The ability to develop a Golang-based operator to manage Kubernetes resources
An in-depth understanding of the Memcached operator code that builds an operator

Get started using Kubernetes Operators

Develop and deploy an advanced Kubernetes operator for JanusGraph