PLEASE NOTE:
We are working on updating this book for the latest version. Some content might be out of date.
We are working on updating this book for the latest version. Some content might be out of date.
Configuration Managementedit
If you use configuration management already (Puppet, Chef, Ansible), you can skip this tip.
If you don’t use configuration management tools yet, you should! Managing
a handful of servers by parallel-ssh
may work now, but it will become a nightmare
as you grow your cluster. It is almost impossible to edit 30 configuration files
by hand without making a mistake.
Configuration management tools help make your cluster consistent by automating the process of config changes. It may take a little time to set up and learn, but it will pay itself off handsomely over time.