In the last two decades the cloud has gained a lot of importance, indeed the currenttrend is to engineer the new web applications to be cloud native, thus to be splitup in loosely-coupled micro-services, each one containerized and deployed as a partof a bigger application. The use of containers allows to cut oneself off the hostingphysical hardware and operating system, letting to focus on the main purposes of aweb application: to be widespread and high-available. The cloud allows to achievethis goal, by gathering the infrastructure control under the cloud provider tenantsand implementing the IaaS (Infrastructure as a Service) and PaaS (Platform asa Service) paradigms: the computational, networking and storage resources areprovided on demand to the cloud provider’s customers as if they were services.