Docker containers are used for further miniaturized forms of VMs, with the lowest footprint in terms of resource utilization and finest efficiency. One can literally host any type of service, be it a Web, Application Server or Database on these containers. 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:-