ingress-nginx-helm/rootfs/etc/nginx/lua/tcp_udp_configuration.lua

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-- this is the Lua representation of TCP/UDP Configuration
local tcp_udp_configuration_data = ngx.shared.tcp_udp_configuration_data
local _M = {
nameservers = {}
}
function _M.get_backends_data()
return tcp_udp_configuration_data:get("backends")
end
function _M.call()
local sock, err = ngx.req.socket(true)
if not sock then
ngx.log(ngx.ERR, "failed to get raw req socket: ", err)
ngx.say("error: ", err)
return
end
local reader = sock:receiveuntil("\r\n")
local backends, err_read = reader()
if not backends then
ngx.log(ngx.ERR, "failed TCP/UDP dynamic-configuration:", err_read)
ngx.say("error: ", err_read)
return
end
local success, err_conf = tcp_udp_configuration_data:set("backends", backends)
if not success then
ngx.log(ngx.ERR, "dynamic-configuration: error updating configuration: " .. tostring(err_conf))
ngx.say("error: ", err_conf)
return
end
end
return _M