I try to use Ansible often, even for tasks that I know how to do with a shell script because I know that Ansible is easy to scale. Even though I might develop an Ansible playbook just for my personal workstation, sometimes it ends up being a lot more useful than intended, and it's easy to apply that same playbook to all the computers on my network. And besides, sometimes the greatest enemy of getting really good at something is the impression that it's only meant for serious professionals, or big projects, or whatever you feel that you're not.
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