It is also possible to install Packer with an automatic script that can be installed on a remote server and be used on a CI/CD process. Indeed, Packer can be used locally, as we will see in this chapter, but its real goal is to be integrated into a CI/CD pipeline. This automatic DevOps pipeline will allow the construction and publication of uniform VM images that will guarantee the integrity of middleware and VM security based on these images.

Let's see the structure of these scripts for the different OSes, that is, Linux, Windows, and macOS.