| -- |
| -- 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 plugin = require("apisix.plugin") |
| local get_routes = require("apisix.router").http_routes |
| local get_services = require("apisix.http.service").services |
| local upstream_mod = require("apisix.upstream") |
| local get_upstreams = upstream_mod.upstreams |
| local ipairs = ipairs |
| local str_format = string.format |
| local ngx_var = ngx.var |
| |
| |
| local _M = {} |
| |
| |
| function _M.schema() |
| local schema = { |
| main = { |
| consumer = core.schema.consumer, |
| global_rule = core.schema.global_rule, |
| plugins = core.schema.plugins, |
| proto = core.schema.proto, |
| route = core.schema.route, |
| service = core.schema.service, |
| ssl = core.schema.ssl, |
| stream_route = core.schema.stream_route, |
| upstream = core.schema.upstream, |
| upstream_hash_header_schema = core.schema.upstream_hash_header_schema, |
| upstream_hash_vars_schema = core.schema.upstream_hash_vars_schema, |
| }, |
| plugins = plugin.get_all({ |
| version = true, |
| priority = true, |
| schema = true, |
| metadata_schema = true, |
| consumer_schema = true, |
| type = true, |
| }), |
| } |
| return 200, schema |
| end |
| |
| |
| local function extra_checker_info(value, src_type) |
| local checker = value.checker |
| local upstream = value.checker_upstream |
| local host = upstream.checks and upstream.checks.active and upstream.checks.active.host |
| local port = upstream.checks and upstream.checks.active and upstream.checks.active.port |
| local nodes = upstream.nodes |
| local healthy_nodes = core.table.new(#nodes, 0) |
| for _, node in ipairs(nodes) do |
| local ok = checker:get_target_status(node.host, port or node.port, host) |
| if ok then |
| core.table.insert(healthy_nodes, node) |
| end |
| end |
| |
| local conf = value.value |
| return { |
| name = upstream_mod.get_healthchecker_name(value), |
| src_id = conf.id, |
| src_type = src_type, |
| nodes = nodes, |
| healthy_nodes = healthy_nodes, |
| } |
| end |
| |
| |
| local function iter_and_add_healthcheck_info(infos, values, src_type) |
| if not values then |
| return |
| end |
| |
| for _, value in core.config_util.iterate_values(values) do |
| if value.checker then |
| core.table.insert(infos, extra_checker_info(value, src_type)) |
| end |
| end |
| end |
| |
| |
| function _M.get_health_checkers() |
| local infos = {} |
| local routes = get_routes() |
| iter_and_add_healthcheck_info(infos, routes, "routes") |
| local services = get_services() |
| iter_and_add_healthcheck_info(infos, services, "services") |
| local upstreams = get_upstreams() |
| iter_and_add_healthcheck_info(infos, upstreams, "upstreams") |
| return 200, infos |
| end |
| |
| |
| local function iter_and_find_healthcheck_info(values, src_type, src_id) |
| if not values then |
| return nil, str_format("%s[%s] not found", src_type, src_id) |
| end |
| |
| for _, value in core.config_util.iterate_values(values) do |
| if value.value.id == src_id then |
| if not value.checker then |
| return nil, str_format("no checker for %s[%s]", src_type, src_id) |
| end |
| |
| return extra_checker_info(value, src_type) |
| end |
| end |
| |
| return nil, str_format("%s[%s] not found", src_type, src_id) |
| end |
| |
| |
| function _M.get_health_checker() |
| local uri_segs = core.utils.split_uri(ngx_var.uri) |
| core.log.info("healthcheck uri: ", core.json.delay_encode(uri_segs)) |
| |
| local src_type, src_id = uri_segs[4], uri_segs[5] |
| if not src_id then |
| return 404, {error_msg = str_format("missing src id for src type %s", src_type)} |
| end |
| |
| local values |
| if src_type == "routes" then |
| values = get_routes() |
| elseif src_type == "services" then |
| values = get_services() |
| elseif src_type == "upstreams" then |
| values = get_upstreams() |
| else |
| return 400, {error_msg = str_format("invalid src type %s", src_type)} |
| end |
| |
| local info, err = iter_and_find_healthcheck_info(values, src_type, src_id) |
| if not info then |
| return 404, {error_msg = err} |
| end |
| return 200, info |
| end |
| |
| |
| return { |
| -- /v1/schema |
| { |
| methods = {"GET"}, |
| uris = {"/schema"}, |
| handler = _M.schema, |
| }, |
| -- /v1/healthcheck |
| { |
| methods = {"GET"}, |
| uris = {"/healthcheck"}, |
| handler = _M.get_health_checkers, |
| }, |
| -- /v1/healthcheck/{src_type}/{src_id} |
| { |
| methods = {"GET"}, |
| uris = {"/healthcheck/*"}, |
| handler = _M.get_health_checker, |
| } |
| } |