Overview of terms

Overview

Teaching: 10 min
Exercises: 0 min

Questions

Objectives

• Learn

We’ll start with a rough overview of:

• Ansible
• Inventory file
• Vagrant

Ansible

• Like ssh, but on can run against >1 at once.
• Agent-less
• Human-readable (yaml) language to define state of a system

Inventory (files)

• List(s) of systems
• Groups systems together

Looks like:

mail.openmicroscopy.org.uk

[omero-servers]
nightshade.openmicroscopy.org
ome-demoserver.openmicroscopy.org

[ci-servers]
eel.openmicroscopy.org
cowfish.openmicroscopy.org

Vagrant

• Takes care of the config and overhead of creating Virtual Machines
• Vagrantfile
• Test playbooks in a full vm rather than e.g. docker
• For the purposes of this training: local vm

Virtualbox

• Lightweight Virtual Machine hypervisor

Key Points

• Ansible - configuration automation

• Ansible inventory - our

• Vagrant - drives local VM provider like VirtualBox