The last few years have seen a growth in popularity of Cloud Computing, a computational paradigm to deploy IT services, through which cloud providers make computing resources available at the request of users, ensuring greater flexibility, availability and cost reduction, without the need for the user to purchase and manage them. Cloud Computing achieves these benefits taking advantage of virtualization technologies, which can host services in a full virtualization environments, such as the Xen hypervisor or Kernel-based Virtual Machine, or in a lightweight virtualization environment, such as Docker. Nowadays the trend is towards the use of lightweight virtual machines, also named containers, considered by companies more advantageous for their flexibility, simplified deployment, compatibility with various operative systems, rapid availability, fine-grained subdivision of computational resources in micro-services.