The reason of choosing Docker is relative to your architecture. Whether you are running stateless apps or can you make your apps stateless? If yes, then Docker + Kubernetes makes a great architecture for scalability. There are other benefits besides scalability but it would require more of a sit down architectural meeting to go over the benefits and see if docker is right for you. If you want to learn Docker and to know more about all the concepts of docker in-depth and to grab a valuable certificate in it.you can have a look at the following Docker Training Course. If you like to read then you can read the following tutorial on Docker. To watch the free video tutorials on Docker you can visit the below-mentioned website:-