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- What do we do to create
a readers based fact cache?

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Well, let's start with
a new project directory.

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And ensure that we have an ansible.cfg

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and an inventory in there.

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The major changes in the ansible.cfg

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because in ansible.fg we need to indicate

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that a redis based fact
cache needs to be used.

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This is a property of the default section.

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So let's say fact_caching to
redis fact_caching timeout

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to 7,200 or whatever value works for you.

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And most important, the
fact_caching connection

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is localhost 6379:0.

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Then we also need to make sure
that we have a redis process.

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So sudo dnf install -y redis

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which shouldn't be necessary in this case

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because of the previous demo.

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So we can use sudo systemctl status

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on redis to verify the operation.

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It is running, and let's
not forget sudo pip3

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and install redis for the
corresponding patent components.

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Already installed, that makes sense.

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And now we can start using it.

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So how do we do that?

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Oh, ansible all -m setup,
right, together some cache.

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No, we need sudo password.

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So let's enter a sudo
password, there we go.

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All right, now we have gathered some cache

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and let's do some playbook
that is using the cache.

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So cache check yaml.

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Gather_facts will be set to no.

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And let's just use the setup module.

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And that should do, so, there we go,

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ansible.playbook cachecheck -k

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because of the configuration.

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And there we go, it's gathering the facts.

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We don't see anything.

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If you want to see something,

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use register to show the value
of the registered variable.

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But the fact, the
digital complaining means

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that it is totally happy
fetching this information

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from the fact cache, and that's all.