| -- |
| -- 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 apisix_upstream = require("apisix.upstream") |
| local plugin_checker = require("apisix.plugin").plugin_checker |
| local services |
| local error = error |
| |
| |
| local _M = { |
| version = 0.2, |
| } |
| |
| |
| function _M.get(service_id) |
| return services:get(service_id) |
| end |
| |
| |
| function _M.services() |
| if not services then |
| return nil, nil |
| end |
| |
| return services.values, services.conf_version |
| end |
| |
| |
| local function filter(service) |
| service.has_domain = false |
| if not service.value then |
| return |
| end |
| |
| apisix_upstream.filter_upstream(service.value.upstream, service) |
| |
| core.log.info("filter service: ", core.json.delay_encode(service, true)) |
| end |
| |
| |
| function _M.init_worker() |
| local err |
| services, err = core.config.new("/services", { |
| automatic = true, |
| item_schema = core.schema.service, |
| checker = plugin_checker, |
| filter = filter, |
| }) |
| if not services then |
| error("failed to create etcd instance for fetching upstream: " .. err) |
| return |
| end |
| end |
| |
| |
| return _M |