The common question when it comes to comparing two things is whether or not to use one or the other. Docker and Kubernetes have always had that question. That question in and of itself doesn’t make sense because comparing those two essentially means nothing as they are two entirely different pieces of technology that shouldn’t be seen as a competition, but rather a mutualistic relationship.
To start, let’s talk about docker. What is Docker? Docker is essentially a boat or a cargo ship that has jet engines and a built-in workshop. Docker is a tool used to easily create, deploy, and run applications that are using containers. Containers are basically your “all in one package” for applications. It includes everything you need to run the said application and be deployed as one package. It’s lightweight when compared to standard containers.
Now, what is Kubernetes? Imagine the difficulty in organizing your containerized apps across multiple machines or what we call nodes. Stressful isn’t it? Now your cluttered containers are easily managed by the use of Kubernetes. It helps in running said containers depending on the resources available, schedules when a program should or not run based on schedules, and the containers you used individually are now combined to what is called a cluster, the basic operational unit for Kubernetes.
There are differences, yes like how Docker is mainly used in singles nodes while Kubernetes is used across clusters, but the beauty in these two is the fact that they work the best when used together. When using Kubernetes and Docker, your apps can remain online even if some of the nodes it requires go offline, it can also make running app for a better experience, easier since Kubernetes helps allocate more resources specific clusters.
They may have their differences but using Docker and Kubernetes together will improve your efficiency and decrease the stress of micromanaging your containers. No more comparing the two, Just use them both together and do your training online.
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