July 2017
Beginner
208 pages
5h 10m
English
Content preview from Getting Started with Terraform - Second Edition
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Reprovisioning machines with null_resource
null_resource doesn't create anything. It's a container for provisioners. Because it is not directly connected to any piece of the infrastructure, it's not a big deal to destroy it in order to retrigger provisioners it has defined on.
There are two types of provisioning we are doing right now with Puppet: the one-time Puppet installation and Puppet run, which should be retriggered if the manifest changes--imagine that the repository IP changed and somehow we still don't have a proper DNS server in place.
If you have Puppet master, all of it makes zero sense: modules and manifests are stored on the master, and the Puppet agent runs as a system service and applies manifests automatically every N minutes. ...
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