benx203 commented on a change in pull request #3820: URL: https://github.com/apache/apisix/pull/3820#discussion_r597350658
########## File path: apisix/discovery/nacos.lua ########## @@ -0,0 +1,237 @@ +-- +-- Licensed to the Apache Software Foundation (ASF) under one or more +-- contributor license agreements. See the NOTICE file distributed with +-- this work for additional information regarding copyright ownership. +-- The ASF licenses this file to You under the Apache License, Version 2.0 +-- (the "License"); you may not use this file except in compliance with +-- the License. You may obtain a copy of the License at +-- +-- http://www.apache.org/licenses/LICENSE-2.0 +-- +-- Unless required by applicable law or agreed to in writing, software +-- distributed under the License is distributed on an "AS IS" BASIS, +-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +-- See the License for the specific language governing permissions and +-- limitations under the License. +-- + +local local_conf = require("apisix.core.config_local").local_conf() +local http = require("resty.http") +local core = require("apisix.core") +local ipairs = ipairs +local tostring = tostring +local type = type +local math_random = math.random +local error = error +local ngx = ngx +local ngx_timer_at = ngx.timer.at +local ngx_timer_every = ngx.timer.every +local string_sub = string.sub +local str_find = core.string.find +local log = core.log + +local default_weight +local applications +local service_list_path +local instance_list_path + +local schema = { + type = "object", + properties = { + host = { + type = "array", + minItems = 1, + items = { + type = "string", + }, + }, + fetch_interval = {type = "integer", minimum = 1, default = 30}, + prefix = {type = "string"}, + weight = {type = "integer", minimum = 0}, + timeout = { + type = "object", + properties = { + connect = {type = "integer", minimum = 1, default = 2000}, + send = {type = "integer", minimum = 1, default = 2000}, + read = {type = "integer", minimum = 1, default = 5000}, + } + }, + }, + required = {"host"} +} + + +local _M = { + version = 0.1, +} + + +local function service_info() + local host = local_conf.discovery and + local_conf.discovery.nacos and local_conf.discovery.nacos.host + if not host then + log.error("do not set nacos.host") + return + end + + local basic_auth + -- TODO Add health check to get healthy nodes. + local url = host[math_random(#host)] + local auth_idx = str_find(url, "@") + if auth_idx then + local protocol_idx = str_find(url, "://") + local protocol = string_sub(url, 1, protocol_idx + 2) + local user_and_password = string_sub(url, protocol_idx + 3, auth_idx - 1) + local other = string_sub(url, auth_idx + 1) + url = protocol .. other + basic_auth = "Basic " .. ngx.encode_base64(user_and_password) + end + if local_conf.discovery.nacos.prefix then + url = url .. local_conf.discovery.nacos.prefix + end + if string_sub(url, #url) ~= "/" then + url = url .. "/" + end + + return url, basic_auth +end + + +local function request(request_uri, basic_auth, method, path, query, body) + log.info("nacos uri:", request_uri, ".") + local url = request_uri .. path + local headers = core.table.new(0, 5) + headers['Connection'] = 'Keep-Alive' + headers['Accept'] = 'application/json' + + if basic_auth then + headers['Authorization'] = basic_auth + end + + if body and 'table' == type(body) then + local err + body, err = core.json.encode(body) + if not body then + return nil, 'invalid body : ' .. err + end + -- log.warn(method, url, body) + headers['Content-Type'] = 'application/json' + end + + local httpc = http.new() + local timeout = local_conf.discovery.nacos.timeout + local connect_timeout = timeout and timeout.connect or 2000 Review comment: OK. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
