Every request to a host with additional load-balancing targets 500'd:
targetinfo.lua required 'resty.balancer.round_robin', which does not
exist in the lua-resty-balancer rock actually installed by the
Dockerfile/install.sh. That rock provides resty.roundrobin instead,
with a different constructor (roundrobin:new(nodes), not
:new() + :reinit(nodes)).
Verified end-to-end in a rebuilt image: requests to a load-balanced
host now return 200 and alternate across both backend targets, with
no Lua errors in the OpenResty log.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
wmantlyandClaude Sonnet 5
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