Refactored syntax highlighting shortcodes into markdown
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@ -21,12 +21,12 @@ The facts will be available to ansible at `hostvars.host.ansible_local.<fact_nam
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## A simple example
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Here is the simplest example of a fact, let's suppose we make it `/etc/ansible/facts.d/mysql.fact` :
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{{< highlight sh >}}
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```sh
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#!/bin/sh
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set -eu
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echo '{"password": "xxxxxx"}'
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{{< /highlight >}}
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```
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This will give you the fact `hostvars.host.ansible_local.mysql.password` for this machine.
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@ -36,15 +36,15 @@ A more interesting example is something I use with small webapps. In the contain
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provision a database with a user that has access to it on a mysql server. This fact ensures that on subsequent runs we will stay idempotent.
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First the fact from before, only slightly modified :
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{{< highlight sh >}}
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```sh
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#!/bin/sh
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set -eu
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echo '{"password": "{{mysql_password}}"}'
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{{< /highlight >}}
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```
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This fact is deployed with the following tasks :
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{{< highlight yaml >}}
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```yaml
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- name: Generate a password for mysql database connections if there is none
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set_fact: mysql_password="{{ lookup('password', '/dev/null length=15 chars=ascii_letters') }}"
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when: (ansible_local.mysql_client|default({})).password is undefined
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@ -75,16 +75,16 @@ This fact is deployed with the following tasks :
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password: '{{ansible_local.mysql_client.password}}'
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state: present
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delegate_to: '{{mysql_server}}'
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{{< /highlight >}}
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```
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## Caveat : a fact you deploy is not immediately available
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Note that installing a fact does not make it exist before the next inventory run on the host. This can be problematic especially if you rely on facts caching to speed up ansible. Here
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is how to make ansible reload facts using the setup tasks (If you paid attention you already saw me use it above).
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{{< highlight yaml >}}
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```yaml
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- name: reload ansible_local
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setup: filter=ansible_local
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{{< /highlight >}}
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```
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## References
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