Only restart on 502 and 503 errors
Only restart on 502 and 503 errors

If our app is sending 500 errors we don't want to increase the
traffic to it incase it's a load issue, however restarting on
502 and 503 is fine.

dstufft/warehouse,HonzaKral/warehouse,ismail-s/warehouse,wlonk/warehouse,alex/warehouse,ismail-s/warehouse,HonzaKral/warehouse,pypa/warehouse,dstufft/warehouse,ismail-s/warehouse,alex/warehouse,HonzaKral/warehouse,wlonk/warehouse,dstufft/warehouse,karan/warehouse,karan/warehouse,ismail-s/warehouse,ismail-s/warehouse,karan/warehouse,pypa/warehouse,alex/warehouse,karan/warehouse,pypa/warehouse,karan/warehouse,dstufft/warehouse,HonzaKral/warehouse,pypa/warehouse,alex/warehouse,alex/warehouse,wlonk/warehouse