Deploying, Updating, and Securing an Application with Kubernetes

In the previous chapter, we learned about the basics of the container orchestrator known as Kubernetes. We got a high-level overview of the architecture of Kubernetes and learned a lot about the important objects used by Kubernetes to define and manage a containerized application.

In this chapter, we will learn how to deploy, update, and scale applications into a Kubernetes cluster. We will also explain how zero-downtime deployments are achieved to enable disruption-free updates and rollbacks of mission-critical applications. Finally, we will introduce Kubernetes secrets as a means to configure services and protect sensitive data.

This chapter covers the following topics:

• Deploying our first application
• Defining liveness and readiness
• Zero-downtime deployments
• Kubernetes secrets

After working through this chapter, you will be able to do the following:

• Deploy a multi-service application...