I've found an apparent bug in the puppet parser.
If you are using 'import' to include the contents of a subdirectory, like this:
import 'foo/*.pp'
and then you create a new module 'foo', suddenly the import statement silently
stops working. This means that any node definitions in the manifests that
should have been included are not present, and those nodes fall back to the
default node. The 'foo' module can be completely minimal, just a 'class foo {
}' in the init.pp is enough to break the import.
Now, in our case, our default node closes the firewall. When we productionised
a new module called 'oracle', all of the node definitions imported from
oracle/*.pp suddenly stopped working, and so all the production oracle servers
fell back to the default node definition, and closed their firewalls... Insert
the sound of the brown stuff hitting the fan...
I have successfully duplicated this, and logged it as a bug on the Puppet bug
tracker. A workaround seems to be to add a './' prefix to the imported
directory name:
import './foo/*.pp'
which has the same effect, but is not broken by having a 'foo' module present.
I've tried to delve through the parser code to track this one down, but my Ruby
skills are not as good as my Perl skills, and I've not managed to identify the
reason. Possibly the parser creates a new class for the imported directory?
I'd be interested in hearing if anyone else has experienced this, or if this
clears up odd behaviour you're experiencing on your system. Also, if you also
have the problem, please go to the bug tracker and give this a +1 to help it
get higher priority on the fix list...
Steve
Steve Shipway
University of Auckland ITS
UNIX Systems Design Lead
s.ship...@auckland.ac.nz<mailto:s.ship...@auckland.ac.nz>
Ph: +64 9 373 7599 ext 86487
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