[omoikane]

Configuration files should be treated like code and follow the same gradual rollout practices. See also:

https://sre.google/workbook/canarying-releases/

Which starts with "a majority of incidents are triggered by binary or configuration pushes". The stats for config related failures is one link away at

https://sre.google/workbook/postmortem-analysis/

Where it says 31% of outages in 2010-2017 are caused by "configuration push".