Summary

In this chapter, we’ve covered many topics related to deploying and updating applications, scaling Kubernetes clusters, managing resources, CI/CD pipelines, and provisioning infrastructure. We discussed live cluster updates, different deployment models, how the horizontal pod autoscaler can automatically manage the number of running pods, how to perform rolling updates correctly and safely in the context of autoscaling, and how to handle scarce resources via resource quotas. Then we discussed CI/CD pipelines and how to provision infrastructure on Kubernetes using tools like Terraform, Pulumi, custom operators, and Crossplane.

At this point, you have a good understanding of all the factors that come into play when a Kubernetes cluster faces dynamic and growing workloads. You have multiple tools to choose from for planning and designing your own release and scaling strategy.

In the next chapter, we will learn how to package applications for deployment on Kubernetes...