Cloud

There are lots of choices in the cloud.

There are so many Virtualization technologies.

Then there are a plethora of cloud services (like [GMail]) or providers such as AWS, Digital Ocean, Linode

There are the system deployment or management tools such as Ansible, Juju, Puppet, Vagrant and VirtualBox which are either cloud-centric or at least cloud-compatible.

One cloud-centric tool that is common to Ubuntu, Fedora, Debian, RHEL, CentOS and more is the cloud-init set of Python scripts.