0cd1f16c47
* fix tcp 502 error * fix tcp 502 error for parse tcp backend data * fix tcp 502 error for parse tcp backend data
68 lines
1.9 KiB
Lua
68 lines
1.9 KiB
Lua
local ngx = ngx
|
|
local tostring = tostring
|
|
local cjson = require("cjson.safe")
|
|
-- this is the Lua representation of TCP/UDP Configuration
|
|
local tcp_udp_configuration_data = ngx.shared.tcp_udp_configuration_data
|
|
|
|
local _M = {}
|
|
|
|
function _M.get_backends_data()
|
|
return tcp_udp_configuration_data:get("backends")
|
|
end
|
|
|
|
function _M.get_raw_backends_last_synced_at()
|
|
local raw_backends_last_synced_at = tcp_udp_configuration_data:get("raw_backends_last_synced_at")
|
|
if raw_backends_last_synced_at == nil then
|
|
raw_backends_last_synced_at = 1
|
|
end
|
|
return raw_backends_last_synced_at
|
|
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
|
|
|
|
if backends == nil or backends == "" then
|
|
return
|
|
end
|
|
|
|
local _, backends_err = cjson.decode(backends)
|
|
|
|
if backends_err then
|
|
ngx.log(ngx.ERR, "could not parse backends data: ", backends_err)
|
|
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
|
|
|
|
ngx.update_time()
|
|
local raw_backends_last_synced_at = ngx.time()
|
|
success, err = tcp_udp_configuration_data:set("raw_backends_last_synced_at",
|
|
raw_backends_last_synced_at)
|
|
if not success then
|
|
ngx.log(ngx.ERR, "dynamic-configuration: error updating when backends sync, " ..
|
|
"new upstream peers waiting for force syncing: " .. tostring(err))
|
|
ngx.status = ngx.HTTP_BAD_REQUEST
|
|
return
|
|
end
|
|
end
|
|
|
|
return _M
|