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50 lines
1.5 KiB
50 lines
1.5 KiB
---
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# this is a demo of conditional imports. This is a powerful concept
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# and can be used to use the same recipe for different types of hosts,
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# based on variables that bubble up from the hosts from tools such
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# as ohai or facter.
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#
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# Here's an example use case:
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#
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# what to do if the service for apache is named 'httpd' on CentOS
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# but is named 'apache' on Debian?
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# there is only one play in this playbook, it runs on all hosts
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# as root
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- hosts: all
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user: root
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# we have a common list of variables stored in /vars/external_vars.yml
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# that we will always import
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# next, we want to import files that are different per operating system
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# and if no per operating system file is found, load a defaults file.
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# for instance, if the OS was "CentOS", we'd try to load vars/CentOS.yml.
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# if that was found, we would immediately stop. However if that wasn't
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# present, we'd try to load vars/defaults.yml. If that in turn was not
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# found, we would fail immediately, because we had gotten to the end of
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# the list without importing anything.
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vars_files:
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- "vars/external_vars.yml"
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- [ "vars/{{ facter_operatingsystem }}.yml", "vars/defaults.yml" ]
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# and this is just a regular task line from a playbook, as we're used to.
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# but with variables in it that come from above. Note that the variables
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# from above are *also* available in templates
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tasks:
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- name: ensure apache is latest
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action: "{{ packager }} pkg={{ apache }} state=latest"
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- name: ensure apache is running
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action: service name={{ apache }} state=running
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