Sometimes we would like to create a base image without any DB access, this
assists in creating custom base images with custom plugins that already
includes `public/assets`
Following this change set you can run:
```
SPROCKETS_CONCURRENT=1 DONT_PRECOMPILE_CSS=1 SKIP_DB_AND_REDIS=1 RAILS_ENV=production bin/rake assets:precompile
```
Then it is straight forward to create a base image without needing a DB or
Redis.
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.
Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
This cleans up logster configuration a bit cause we no longer have to
check if we respond_to anything and keeps the logster limit properly
documented
Followup on da578e92
Ruby 2.5.3 has an upatched issue that crashes unicorn after fork:
https://bugs.ruby-lang.org/issues/14634
This will be patched in 2.5.4 however for now just warn people dev is slower
and disable async logging on the older rubies
ActiveRecord defines automatic scopes for enums, the Poll model defines
an enum for `{open: 1}` this mean Rails wants the scope `Poll.all.open`
to work which in turn means it has to override `open` which is defined
privately.
Rails feature req exists for: https://github.com/rails/rails/issues/34599
which will allow us to define enums without scopes which would resolve this
a lot more cleaner.
