Summary

In this chapter, you learned about containerization and how it is different from virtualization. You also learned about the Docker containerization platform and how to use the Spring Boot plugin to generate a Docker image for a sample e-commerce app.

Then, you learned about the Docker registry and how to configure a local insecure registry so that you can use it to push and pull images locally. The same commands can be used to push and pull images from a remote Docker registry.

You also learned about Kubernetes and its cluster operations by using Minikube. You configured it so that you can pull Docker images from insecure local Docker registries.

Now, you have the necessary skills to build a Docker image of a Spring Boot application and deploy it to a Kubernetes cluster.

In the next chapter, you’ll learn about the fundamentals of the gRPC APIs.