You'll bring your Vagrant environment you created earlier back up that and ssh onto the Ansible server. For this example only ansible, mon1, and osd1 will be needed:

Vagrant up ansible mon1 osd1  

• Add the Ansible PPA:

$ sudo apt-add-repository ppa:ansible/ansible-2.6          

• Update apt-get sources and install Ansible:

$ sudo apt-get update && sudo apt-get install ansible -y