Nowadays, software developers work on multiple projects at the same time. The projects usually present distinct requirements. Nevertheless, they must be reproduced identically in multiple machines, and sometimes they have to live in the same hardware – the developer’s computer. The so-called container technology stands out among the different approaches used to reproduce software projects reliably.

A container is a standard unit of software used to build a virtualized operational system (OS). The container’s OS has control over some components of the host system and can isolate the processes related to the container’s services. This isolation enhances the reproducibility of the containerized application. The container technology has been developed since the 2000s, but in 2013, when Docker was introduced to the community, its popularity has exploded.