Add ability to tweak Unit variations max body size setting #416
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Currently the Unit variation doesn't allow customising the
max_body_size
setting (https://unit.nginx.org/configuration/#settings:~:text=false%20(disabled).-,max_body_size,-Maximum%20number%20of), which by default only allows 8MB requests to be processed by Nginx Unit.This PR adds the ability to specify
UNIT_MAX_BODY_SIZE
environment variable (with a default of 100MB to match PHPs max size).I've tested this by tweaking the json templates locally and then applying them to my own Docker image and this fixes the issue I was seeing with 413 errors when post sizes were above 8MB.