Option to pass custom environment-vars to zeoserver processes?

[fiterbek]

Hi,

We have a certain ZEO setup in which a lot of documents need to be reindexed (a Plomino-based application). The problem is this fills up the /tmp directory of the zeoserver and crashes the reindexing.

In a previous, unrelated but similar problem on the zeoclients, we managed to change the TMP variable so that it and, consequently, the zeoclient used another directory which did have enough space. This was done by overwriting the TMP variable using the environment-vars option in the https://github.com/plone/plone.recipe.zope2instance recipe.

I wanted to apply the same trick to the zeoserver buildouts, but there is no similar option in this recipe. Also, adding it via zope-conf-additional does not help either, since the zeo and runctl processes do not accept setting an environment variable this way.

Would it be possible to add support for an environment-vars option this into this recipe? I can always ask, right? :)