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Document when clause list of conditions (#17206)

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The 'when' clause supports a list of conditions, applying a logical 'and' to the conditions (i.e. requiring all of them to be true).

This can be useful for legibility sometimes, allowing distinct conditions to be listed on separate lines.
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Tim Whittington 2016-08-26 04:52:52 +12:00 committed by Matt Davis
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docsite/rst/playbooks_conditionals.rst
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@ -38,6 +38,15 @@ You can also use parentheses to group conditions::
when: (ansible_distribution == "CentOS" and ansible_distribution_major_version == "6") or
(ansible_distribution == "Debian" and ansible_distribution_major_version == "7")
Multiple conditions that all need to be true (a logical 'and') can also be specified as a list::
tasks:
- name: "shut down CentOS 6 systems"
command: /sbin/shutdown -t now
when:
- ansible_distribution == "CentOS"
- ansible_distribution_major_version == "6"
A number of Jinja2 "filters" can also be used in when statements, some of which are unique
and provided by Ansible. Suppose we want to ignore the error of one statement and then
decide to do something conditionally based on success or failure::