ngx.balancer multiple upstream IPs

[Rob Kay]

Hi,

I'm using lua-resty-dns to look up the IPs of an ELB and then passing them to balancer_by_lua via ngx.ctx. How can I use the multiple IPs returned by the ELB as upstreams? set_current_peer() only allows for a single IP so i'm not sure how to make it worth with proxy_next_upstream to try subsequent IPs if the first fails.