Configuration - system packages, settings, users, apps
CM Tools - describe the desired state. E.g. ensure all system packages are updated.
Puppet, chef - feel bit like working with Java.
Salt, Ansible - simple.
Ansible - orchestration engine. Written in Python. Uses YAML to write “playbooks”. Can use it to configure Windows.
No central configuration server/client (on target).
Just needs SSH access and Python on target machine.
Modules - 100s of them. They know how to do stuff.
Deletes module code from target after running it on target.
Can define groups to operate against.
group_vars directory/ all, groupname1
Ansible ‘cloud’ modules: AWS, Docker.
Modules: all output to stdout + JSON.
https://github.com/jbrendel/ansible_cluster_setup (opens new window)