I use Vagrant a lot. It is an awesome tool when it comes to quickly spin up a local VM for some testing.
All my boxes are stored on Hashicorp’s Atlas. Atlas provides a lot more functionality than just being a box repository, but I only use it for just that.
I try to create one box per Oracle Linux release (starting with 6.5) and I create the box as soon as a new version is released. I use Packer to create the boxes, which makes it a really painless exercise. I’ll describe that process in later blog-post.
Vagrant supports Virtualbox by default but also a lot of other providers (VMware, AWS ec2 etc), and I build all my boxes for Virtualbox.
The boxes all come with the Oracle pre-req packages installed and a couple of other nice-to-have packages, Ansible among other things. I then usually use this to do the Oracle installations.
As for naming, I use the following standard: ol<releasenumber>
i.e: ol68, ol72 etc
In Atlas, you can have different versions of a specific box, and I try to keep the version number to the date when the box was created (i.e 20170326). It makes it easy to see how up-to-date the specific box is. I usually don’t update a box unless there is something I’ve missed to add.
So how can you use these boxes?
Vagrant uses a ‘Vagrantfile’ to describe the VM you want to create (in terms of IP’s, number of cores, amount of RAM etc), and in its simplest form you can let Vagrant create that file for you by running the:
vagrant init <boxname> command. So if you wanted to create a VM with my latest ol73 box, you’d do this:
miksan-macbook-pro:vagrant miksan$ vagrant init oravirt/ol73
A `Vagrantfile` has been placed in this directory. You are now
ready to `vagrant up` your first virtual environment! Please read
the comments in the Vagrantfile as well as documentation on
`vagrantup.com` for more information on using Vagrant.
miksan-macbook-pro:vagrant miksan$ grep oravirt Vagrantfile
config.vm.box = "oravirt/ol73" <-- This tells Vagrant which box to use
The above will not have any customizations in terms of cpu’s etc.
For more customized configurations I have 2 github repos containing Vagrant configurations for both a RAC config and a single instance config. I’ll go through them in more detail in a later blogpost.
They use 2 different ways of customizing the configuration, vbox-si uses an external file called hosts.yml where you specify the ip, name etc of the VM(s) you want to create.
Vbox-rac is based on the work Alvaro Miranda and I did for this, and in that case the customization is done in the actual Vagrantfile.
These are the boxes I currently have available.