Add an example of failed_when.
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@ -27,6 +27,35 @@ write a task that looks like this::
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command: /bin/false
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ignore_errors: yes
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.. _controlling_what_defines_failure
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Controlling What Defines Failure
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````````````````````````````````
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.. versionadded:: 1.4
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Suppose the erorr code of a command is meaningless and to tell if there
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is a failure what really matters is the output of the command, for instance
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if the string "FAILED" is in the output.
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Ansible in 1.4 and later provides a way to specify this behavior as follows::
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- name: this command prints FAILED when it fails
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command: /usr/bin/example-command -x -y -z
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register: command_result
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failed_when: "'FAILED' in command_result.stderr"
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In previous version of Ansible, this can be still be accomplished as follows::
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- name: this command prints FAILED when it fails
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command: /usr/bin/example-command -x -y -z
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register: command_result
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ignore_errors: True
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- name: fail the play if the previous command did not succeed
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fail: msg="the command failed"
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when: "'FAILED' in command_result.stderr"
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.. _override_the_changed_result:
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Overriding The Changed Result
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