dabue commented on a change in pull request #2592: URL: https://github.com/apache/apisix/pull/2592#discussion_r532009247
########## File path: apisix/plugins/error-log-logger.lua ########## @@ -0,0 +1,204 @@ +-- +-- 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 core = require("apisix.core") +local errlog = require("ngx.errlog") +local batch_processor = require("apisix.utils.batch-processor") +local plugin = require("apisix.plugin") +local timers = require("apisix.timers") +local plugin_name = "error-log-logger" +local table = core.table +local ngx = ngx +local tcp = ngx.socket.tcp +local string = string +local tostring = tostring +local ipairs = ipairs +local lrucache = core.lrucache.new({ + ttl = 300, count = 32 +}) + + +local metadata_schema = { + type = "object", + properties = { + host = {type = "string"}, + port = {type = "integer", minimum = 0}, + tls = {type = "boolean", default = false}, + tls_options = {type = "string"}, + timeout = {type = "integer", minimum = 1, default = 3}, + keepalive = {type = "integer", minimum = 1, default = 30}, + name = {type = "string", default = plugin_name}, + level = {type = "string", default = "WARN"}, + batch_max_size = {type = "integer", minimum = 0, default = 1000}, + max_retry_count = {type = "integer", minimum = 0, default = 0}, + retry_delay = {type = "integer", minimum = 0, default = 1}, + buffer_duration = {type = "integer", minimum = 1, default = 60}, + inactive_timeout = {type = "integer", minimum = 1, default = 3}, + }, + required = {"host", "port"} +} + + +local log_level = { + STDERR = ngx.STDERR, + EMERG = ngx.EMERG, + ALERT = ngx.ALERT, + CRIT = ngx.CRIT, + ERR = ngx.ERR, + ERROR = ngx.ERR, + WARN = ngx.WARN, + NOTICE = ngx.NOTICE, + INFO = ngx.INFO, + DEBUG = ngx.DEBUG +} + + +local config = {} +local buffers = {} + + +local _M = { + version = 0.1, + priority = 1091, + name = plugin_name, + metadata_schema = metadata_schema, +} + + +local function send_to_server(data) + local sock, soc_err = tcp() + + if not sock then + return false, "failed to init the socket " .. soc_err + end + + sock:settimeout(config.timeout * 1000) + + local ok, err = sock:connect(config.host, config.port) + if not ok then + return false, "failed to connect the TCP server: host[" .. config.host + .. "] port[" .. tostring(config.port) .. "] err: " .. err + end + + if config.tls then + ok, err = sock:sslhandshake(true, config.tls_options, false) + if not ok then + return false, "failed to to perform TLS handshake to TCP server: host[" + .. config.host .. "] port[" .. tostring(config.port) .. "] err: " .. err + end + end + + local bytes, err = sock:send(data) + if not bytes then + sock:close() + return false, "failed to send data to TCP server: host[" .. config.host + .. "] port[" .. tostring(config.port) .. "] err: " .. err + end + + sock:setkeepalive(config.keepalive * 1000) + return true +end + + +local function update_filter(value) + local level = log_level[string.upper(value.level)] + local status, err = errlog.set_filter_level(level) + if not status then + return nil, "failed to set filter level by ngx.errlog, the error is :" .. err + else + core.log.debug("set the filter_level to ", config.level) + end + + return value +end + + +local function process() + local metadata = plugin.plugin_metadata(plugin_name) + if not (metadata and metadata.value and metadata.modifiedIndex) then + core.log.info("please set the correct plugin_metadata for ", plugin_name) + return + else + local err + config, err = lrucache(plugin_name, metadata.modifiedIndex, update_filter, + metadata.value) + if not config then + core.log.warn("set log filter failed for ", err) + return + end + + end + + local id = ngx.worker.id() + local entries = {} + local logs = errlog.get_logs(10) Review comment: LGTM, I'll update it. ---------------------------------------------------------------- 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: [email protected]
