Problems when the hostname is not an ip but a name defined in /etc/hosts (Docker) about lua-resty-core HOT 5 CLOSED

@ruslantalpa I think the error message you are getting is already quite clear about the reason: set_current_peer does not support host names other than IP addresses.

You can, however, use the lua-resty-dns library in an earlier phase, like access_by_lua*, to resolve your domain names to IP addresses and save the IP addresses to ngx.ctx which can be later read in your balancer_by_lua*.

from lua-resty-core.

@ruslantalpa Oh, BTW, /etc/hosts is not supported (yet) in lua-resty-dns. So you'd better read that file yourself instead (but ensure you are caching the result otherwise reading a file upon every request can be quite expensive).

from lua-resty-core.

That's the answer i was looking for, to make sure it's a limitation and not me doing something wrong.
Thank you.

from lua-resty-core.

lua-resty-dns seems to be too complex for simple dns lookup. And there is no ``/etc/hosts` file support at all.

Is there any way to use something like nginx build in ngx_inet_resolve_host function?

from lua-resty-core.

@ruslantalpa Well, you can abstract out a simple Lua function atop lua-resty-dns for simple queries and you can parse /etc/hosts in Lua rather easily.

from lua-resty-core.