Open Stack

Hi,

There are a number of reviews[1][2] where new environment variables are being disliked, leading to -1 or -2 code reviews because new environment variables are added.  It is looking like this is becoming a policy.

If this is a policy, then could that be stated, and an alternate mechanism made available so that any reviews adding environment variables can use the replacement mechanism, please?

Otherwise, some guidelines for developers where environment variables are acceptable or not would equally be useful.

[1] https://review.openstack.org/85009
[2] https://review.openstack.org/85418

Thanks,
*: JonPaul.Sullivan at hp.com :) Cloud Services - @hpcloud
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