Running Nagios using virtualizations
Apart from running Nagios on a physical machine, it can also be run inside virtualizations, like almost all other applications. This section is mainly intended for users already familiar with different types of virtualization and willing to run Nagios in such an environment.
Nagios works well both using hardware virtualization such as provided by VMware, Virtual Box, or Hyper-V applications as well as in Linux containers such as Docker.
Containers allow Nagios to run in a shared, single instance of the Linux kernel, which allows better sharing of memory and other resources and is much easier to set up in general—all that is needed is installing Docker, which will take care of provisioning everything else.
Hardware virtualization has the benefit of not sharing the Linux kernel and having dedicated resources such as configuring the amount of available RAM memory—so it is possible to limit the resources that Nagios can use.
