Jump right into Kubernetes development with career-focused lessons and hands-on practice.

DevOps for Developers

Kubernetes is a powerful container management tool that's taking the world by storm. This detailed course will help you master it.

In this course, you'll start with the fundamentals of Kubernetes and what the main components of a cluster look like. You'll then learn how to use those components to build, test, deploy, and upgrade applications, as well as how to achieve state persistence once your application is deployed. You'll also learn how to secure your deployments and manage resources, which are crucial DevOps skills.

By the time you're done, you'll have a firm grasp on what Kubernetes is, as well as the skills to deploy your own clusters and applications with confidence.

A Practical Guide to Kubernetes

# Understanding Secrets

> **Note:** We cannot treat all information equally. Sensitive data needs to be handled with additional care. Kubernetes provides an additional level of protection through Secrets.

A **Secret** is a relatively small amount of sensitive data. Some of the typical candidates for Secrets would be passwords, tokens, and SSH keys.

Kubernetes Secrets are very similar to ConfigMaps. If you compare the differences in the syntax, you’ll notice that there are only a few (if any). Conceptually, ConfigMaps and Secrets are, more or less, the same. If you are familiar with ConfigMaps, you should have no trouble applying that knowledge to Secrets.

>**Note:** We have already used Secrets without even knowing. Every Pod we created so far had a Secret mounted automatically by the system. 

We'll start by exploring auto-generated Secrets and proceed to produce some ourselves.



Getting Started with Secrets

Understanding Secrets