Learn to create containerized applications, manage deployments across infrastructures, and prepare for advanced Kubernetes concepts.

Kubernetes Essentials

Kubernetes helps us deploy and manage containerized applications at scale. It abstracts the underlying infrastructure of applications, meaning it doesn’t matter if we deploy our applications to Amazon Web Services, Google Cloud, Linode, or our own on-premises datacenter.

In this module, we’ll learn what Kubernetes is,  why we need it,  how it's expected to change, and how we can use it to create containerized applications. By the end of this module, we will be ready to tackle more advanced concepts and take our Kubernetes skills to the next level.

Getting Started with Kubernetes

What is the primary unit of scaling in Kubernetes?

What is the primary unit of scaling in Kubernetes?

Which method is recommended for managing scaling operations in Kubernetes?


Which method is recommended for managing scaling operations in Kubernetes?

`kubectl scale --replicas <number of replicas>`

What command is used to scale down a Deployment imperatively?



What command is used to scale down a Deployment imperatively?

Kubernetes schedules additional Pods to match the desired state.

Kubernetes changes the node configuration.

What happens when you increase the `spec.replicas` field in a Deployment YAML file and apply the changes?

What happens when you increase the <code>spec.replicas</code> field in a Deployment YAML file and apply the changes?

Test your understanding of the contents covered in this chapter.






Before We Begin

What Is Kubernetes?

Why Is Kubernetes Important?

What Does Kubernetes Look Like?

Getting Kubernetes

Creating a Containerized Application

Running an Application on Kubernetes

Self-Healing

Scaling the Application

Performing a Rolling Update

Kubernetes Exam

Appendix: Lab Code

Epilogue

Conclusion

Quiz: Scale the Application