Vagrant/Provisioning
From charlesreid1
The provisioning step of vagrant is essentially a step for customizing generic OS images installed into new vagrant boxes. It is automatically hooked in to the vagrant up command.
For example, if you want to run a shell script every time you create a new vagrant image, or install a few extra software packages into the machine, this can be scripted, and the script added to the provision step.
Links
Vagrant provisioning documentation: https://www.vagrantup.com/docs/provisioning/