Firstsawyou commented on a change in pull request #2935: URL: https://github.com/apache/apisix/pull/2935#discussion_r547879847
########## File path: apisix/plugins/traffic-split.lua ########## @@ -0,0 +1,310 @@ +-- +-- 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 upstream = require("apisix.upstream") +local schema_def = require("apisix.schema_def") +local init = require("apisix.init") +local roundrobin = require("resty.roundrobin") +local ipmatcher = require("resty.ipmatcher") +local expr = require("resty.expr.v1") +local pairs = pairs +local ipairs = ipairs +local table_insert = table.insert + +local lrucache = core.lrucache.new({ + ttl = 0, count = 512 +}) + + +local vars_schema = { + type = "array", + items = { + type = "array", + items = { + { + type = "string", + minLength = 1, + maxLength = 100 + }, + { + type = "string", + minLength = 1, + maxLength = 2 + } + }, + additionalItems = { + anyOf = { + {type = "string"}, + {type = "number"}, + {type = "boolean"}, + { + type = "array", + items = { + anyOf = { + { + type = "string", + minLength = 1, maxLength = 100 + }, + { + type = "number" + }, + { + type = "boolean" + } + } + }, + uniqueItems = true + } + } + }, + minItems = 0, + maxItems = 10 + } +} + + +local match_schema = { + type = "array", + items = { + type = "object", + properties = { + vars = vars_schema + } + }, + -- When there is no `match` rule, the default rule passes. + -- Perform upstream logic of plugin configuration. + default = {{ vars = {{"server_port", ">", 0}}}} +} + + +local upstreams_schema = { + type = "array", + items = { + type = "object", + properties = { + upstream_id = schema_def.id_schema, -- todo: support upstream_id method + upstream = schema_def.upstream, + weighted_upstream = { + description = "used to split traffic between different" .. + "upstreams for plugin configuration", + type = "integer", + default = 1, + minimum = 0 + } + } + }, + -- When the upstream configuration of the plugin is missing, + -- the upstream of `route` is used by default. + default = { + { + weighted_upstream = 1 + } + }, + minItems = 1, + maxItems = 20 +} + + +local schema = { + type = "object", + properties = { + rules = { + type = "array", + items = { + type = "object", + properties = { + match = match_schema, + upstreams = upstreams_schema + } + } + } + } +} + +local plugin_name = "traffic-split" + +local _M = { + version = 0.1, + priority = 966, + name = plugin_name, + schema = schema +} + +function _M.check_schema(conf) + local ok, err = core.schema.check(schema, conf) + + if not ok then + return false, err + end + + return true +end + + +local function parse_domain_for_node(node) + if not ipmatcher.parse_ipv4(node) and not ipmatcher.parse_ipv6(node) then + local ip, err = init.parse_domain(node) + if ip then + return ip + end + + if err then + return nil, err + end + end + + return node +end + + +local function set_pass_host(ctx, upstream_info, host) + -- Currently only supports a single upstream of the domain name. + -- When the upstream is `IP`, do not do any `pass_host` operation. + if not core.utils.parse_ipv4(host) and not core.utils.parse_ipv6(host) then Review comment: updated. ---------------------------------------------------------------- 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
