Why Ansible?
We will try and compare Ansible with Puppet and Chef during the course of this book since many people have good experience with those tools. We will also point out specifically how Ansible would solve a problem compared to Chef or Puppet.
Ansible, as well as Puppet and Chef, are declarative in nature and are expected to move a machine to the desired state specified in the configuration. For example, in each of these tools, in order to start a service at a point in time and start it automatically on restart, you would need to write a declarative block or module; every time the tool runs on the machine, it will aspire to obtain the state defined in your playbook (Ansible), cookbook (Chef), or manifest (Puppet).
The difference in the toolset ...
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