The wind blows wherever it pleases. You hear its sound, but you cannot tell where it comes from or where it is going.
Ansible supports variables that can be used to store values that can be reused throughout files in an entire Ansible project. This can help simplify creation and maintenance of a project and reduce the incidence of errors.
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Templates give the ability to provide a skeletal file that can be dynamically completed using variables
In comparison with ad-hoc commands, playbooks are used in complex scenarios, and they offer increased flexibility. Playbooks use YAML format, so there is not much syntax needed, but indentation must be respected. Ansible playbooks tend to be more of a configuration language than a programming language.
One of the simplest ways Ansible can be used is by using ad-hoc commands. These can be used when you want to issue some commands on a server or a bunch of servers. Ad-hoc commands are not stored for future uses but represent a fast way to interact with the desired servers.
Ansible is an open source configuration management and orchestration utility. It can automate and standardize the configuration of remote hosts and virtual machines. Its orchestration functionality allows Ansible to coordinate the launch and graceful shutdown of multitiered applications. Because of this, Ansible can perform rolling updates of multiple systems in a way that results in zero downtime.
Continue reading “Ansible – Inventory”