In this software era of constant evolution, we hear a lot of talk about using containers for microservices and the need to modernize monolithic applications. But, there is always an impending question for an enterprise that arises next and is rarely addressed — Why not use VMs instead of containers?
Virtual Machines offer virtualization of hardware as well as the OS and create an efficient, isolated duplicate of a real machine. In the case of containers, only the OS is virtualized and not the hardware, creating a lightweight environment that houses the application and the dependent assets. Containers have continued to gain popularity since 2014 and Virtual machines have existed for a very long time, the difference between the two is known to all. As the world keeps comparing the two, it is imperative to remember both are here to serve different purposes.