Delivering Kubernetes-Native Applications

In the previous sections, we migrated a Docker-based application to Kubernetes and successfully accessed it from inside the Minikube VM, as well as externally. Now, let's see what other benefits Kubernetes can provide if we design our application from the ground up so that it can be deployed using Kubernetes.

Along with the increasing usage of your application, it may be common to run several replicas of certain pods to serve a business functionality. In this case, grouping different containers in a pod alone is not sufficient. We need to go ahead and create groups of pods that are working together. Kubernetes provides several abstractions for groups of pods, such as Deployments, DaemonSets, Jobs, CronJobs, and so on. Just like the Service object, these objects can also be created by using a spec that's been defined in a YAML file.

To start understanding the benefits of Kubernetes, let's use a Deployment to demonstrate...