The virtualization world has seen a sea change in the last 10 years. For a long time, Virtual Machines ruled the virtualization world. But ever since Docker Engine was launched in 2013, containers have become the go-to virtualization method for developers. Over time, the software development process has now shifted from a blame game of “it-works-on-my-machine” to smooth deployment of software systems performed 1000s of times every day.
Containers are self-sufficient software packages that can run the service being agnostic to the underlying environment. It would contain everything from binaries to dependent libraries to configuration files. This makes containers easy to port. Since containers do not have operating system images, they are lightweight compared to Virtual Machines.
Containers have become near ubiquitous in today’s IT infrastructure. A 2020 survey showed 89% of companies agreeing that Containers will play a strategic role for them in the near future. This pace has only increased with the Covid-19 pandemic. By 2022, many more companies have adopted cloud technologies and containerization as their key strategic play.