more reasons to use cdist
Signed-off-by: Nico Schottelius <nico@brief.schottelius.org>
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[[!meta title="Why should I use cdist?"]]
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[[!toc]]
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There are several motivations to use cdist, these
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are probably the most popular ones.
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@ -30,8 +32,40 @@ If you compare regular shell scripting with cdist, there is one major
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difference: When using cdist types,
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the results are
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[idempotent](https://en.wikipedia.org/wiki/Idempotence).
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In practise, that means it does not matter in which order you
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In practise that means it does not matter in which order you
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call cdist types, the result is always the same.
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## Zero dependency configuration management
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Cdist requires very litte on a target system. Even better,
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in almost all cases all dependencies are usually fulfilled.
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Cdist does not require an agent or a high level programming
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languages on the target host: it will run on any host that
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has an **ssh server running** and a posix compatible shell
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(**/bin/sh**).
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## Push based distribution
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Cdist uses the push based model for configuration. In this
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scenario, one (or more) computers connect the target hosts
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and apply the configuration. That way the source host has
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very little requirements: Cdist can even run on a sysadmin
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notebook that is loosely connected to the network and has
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limited amount of resources.
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Furthermore, from a security point of view, only one machine
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needs access to the target hosts. No target hosts will ever
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need to connect back to the source host, which contains the
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full configuration.
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## Highly scalable
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If at some point you manage more hosts than can be handled from
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a single source host, you can simply add more resources: Either
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add more cores to one host or add hosts.
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Cdist will utilise the given resources in parallel.
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## Integration into inventory management
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[[!tag cdist unix]]
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