  In this article we look at the potential of cloud containers and we provide
some guidelines for companies and organisations that are starting to look at
how to migrate their legacy infrastructure to something modern, reliable and
scalable. We propose an architecture that has an excellent relationship between
the cost of implementation and the benefits it can bring, based on the "Pilot
Light" topology. The services are reconfigured inside small docker containers
and the workload is balanced using load balancers that allow horizontal
autoscaling techniques to be exploited in the future. By generating additional
containers and utilizing the possibilities given by load balancers, companies
and network systems experts may model and calibrate infrastructures based on
the projected number of users. Containers offer the opportunity to expand the
infrastructure and increase processing capacity in a very short time. The
proposed approach results in an easily maintainable and fault-tolerant system
that could help and simplify the work in particular of small and medium-sized
organisations.
