G'day.
One of the use cases for the File type I have been considering recently is how
to verify file content is correct before installing it. In many places this
doesn't matter too much, but *sometimes* it surely does.
Two of the specific examples that spring to mind are managing /etc/sudoers,
and /etc/{passwd,shadow}, where getting it wrong can make it hard to go back
and get it right later.
At the moment the File type internally supports a "post-create check"
operation on the file it is replacing. Would there be a reasonable degree of
acceptance of adding the ability to run an external check tool?
My thought is something like this:
file { "/etc/whatever":
source => "whatever",
check => "/usr/local/bin/syntax-check-whatever"
}
When puppet wanted to replace /etc/whatever it would execute the check
command, passing the path to the temporary file to the script, and would abort
the update if the script returned a failure.
This would fit right in next to fail_if_checksum_is_wrong inside
lib/type/file.rb, I think.
Thoughts?
Daniel
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✣ Daniel Pittman ✉ [email protected] ☎ +61 401 155 707
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