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- In the previous lesson you
have learned about filters.

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In this lesson, we will cover plugins.

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They are closely related and therefore,

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before we get started, I
want to give you an overview

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of what exactly is used
in which specific case.

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So plugins are pieces of code

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that increase Ansible core functionality.

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There's a couple of default plugins

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which I'm going to tell you about.

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And custom plugins can be added easily.

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If you want to use plugins,

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you need to activate them in ansible.cfd

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because it's additional code.
It's not there by default.

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A filter is a program that
allows you to modify data.

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We've talked about it in previous lesson

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and that's something that
doesn't require any activation

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or whatsoever.

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And filters are typically
used to change variables

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before using them.

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So in plugins, there are different types.

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There are filter plugins.

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Filter plugins are plugins
that are used to modify text.

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Typically, is used in a variable.

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And we've learned about
that in the previous lesson.

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There are cache plugins.

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Cache plugins are plugins
that allow caching of facts.

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Inventory plugins are plugins
that allow different types

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of dynamic inventory to be used.

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Lookup plugins is a very wide range

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of plugins that allows
fetching data externally.

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And there are callback plugins

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which are plugins that are used

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to collect usage
information about Ansible.

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And there is more.

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If you want to check it out,

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go have a look

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at
docs.ansible.com/ansible/latest/plugins/plugins.html

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for the complete list.

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So to get more information
about your plugins,

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use ansible.doc

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- t help

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which is giving help
about the different types

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that you can use.

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And there you can see cache and callback

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and

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inventory

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and lookup.

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All of these are

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specific kinds of plugins.

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The thing is it's not listed really well,

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but if you want to know more
about the cache plugins,

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well use ansible.doc

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- t cache

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- l

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to list them.

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And there you can see a couple of

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cache plugins.

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And if you're interested in callback,

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well, ansible.doc -t callback -l

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and you list all the
different callback plugins.

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You can see that there's quite a couple

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of options regarding
these callback plugins.

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Let's go back.

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What else do we have?

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We have

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the inventory plugins,

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the lookup plugins.

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As the last example,
you know how it works.

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Now, I'm going to show
you the lookup plugins.

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So ansible.doc -t lookup -l is showing

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again, an impressive
list of lookup plugins

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that are available.

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So if at any case you're
looking for specific plugins,

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it's always a good idea to start

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with ansible.doc -t help.

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And then on the specific type you use -l

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to show what is available.