So this boxfile will give you a basic setup for a fresh CI install:
run.config:
engine: php
engine.config:
runtime: php-7.0
document_root: public
extensions:
- mysqli
data.db:
image: nanobox/mysql:5.6
web.main:
start: php-server
writable_dirs:
- tmp/cache
that probably doesn't look great in our chat client
Let me link you a gist.
What do you need your max upload post size set to?