When using the custom playbook feature, it is possible to affect the
behaviour of internal kayobe playbooks by installing newer versions of
roles, collections, or plugins. This is almost always undesirable. It
occurs because ansible extensions in kayobe config currently have
precedence over the kayobe internal variants. We can prevent users
accidentally breaking kayobe internal playbooks by searching for
extensions in paths in the kayobe install first, followed by kayobe
config (but only when running internal playbooks). The behaviour when
running external playbooks is unchanged. This method still allows you to
install additional plugins, which can be useful in kayobe config e.g
processing a variable with a custom filter plugin.
Change-Id: I34f0351dbcb50104c9a4d6706d94a349c3ea3b9f
Closes-Bug: #2056473
Co-Authored-By: Matt Crees <mattc@stackhpc.com>
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