Simplify register example
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1 changed files with 10 additions and 11 deletions
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tasks:
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# it is possible to save the result of any command in a named register. This variable will be made
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# available to tasks and templates made further down in the execution flow. Here we save the result
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# of a simple 'cat' command in a variable called 'motd_contents'
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# available to tasks and templates made further down in the execution flow.
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- action: shell cat /etc/motd
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register: motd_contents
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- action: shell grep hi /etc/motd
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ignore_errors: True
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register: motd_result
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# and here we access the register. Note that motd_contents as a variable is structured data because
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# and here we access the register. Note that variable is structured data because
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# it is a return from the command module. The shell module makes available variables such as
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# as 'stdout', 'stderr', and 'rc'. Here's a rather trivial example that runs an arbitrary step
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# if and only if the motd file contained the word 'hi'. Remember that only_if statements are
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# Python expressions. This is as complicated as Ansible syntax is going to get, and the only
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# time python really seeps into ansible's language.
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# as 'stdout', 'stderr', and 'rc'.
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# here we run the next action only if the previous grep returned true
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- action: shell echo "motd contains the word hi"
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only_if: "'${motd_contents.stdout}'.find('hi') != -1"
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only_if: "${motd_result.rc} == 0"
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