Reduce abusers rate limit to 40 rps and add rate limit on versions
Reduce abusers rate limit to 40 rps and add rate limit on versions

Fixes: CPU spikes on postgres.

We had increased limits to 100 rps when we were having issues with
info endpoint. we don't rate limit info at the moment, there limit
need not be this high. Further, we had 100 rps at the time when
we were running single nginx. With nginx on every pod, our rate limit
was 100 * number of pods (replicas).

versions was missing rate limit. added it for good measure.

I have verified that our normal traffic doesn't need this high limits.
Our original rate limits were 10 rps:
https://github.com/rubygems/rubygems-chef/blob/master/cookbooks/rubygems-balancer/templates/default/site.conf.erb#L14

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