[GitHub] [apisix] tzssangglass commented on issue #6520: bug: the destroy function of plugin cant be called

[GitBox <gi...@apache.org>]

tzssangglass commented on issue #6520:
URL: https://github.com/apache/apisix/issues/6520#issuecomment-1060101548


   add log output
   
   ```lua
   core.log.info(plugin_name, " destroy")
   ```
   
   on https://github.com/apache/apisix/blob/492f782d9fae719b3a20e0d65c275962bcdcaab9/apisix/plugins/example-plugin.lua#L71-L72
   
   and use below test cases
   
   ```
   #
   # 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.
   #
   use t::APISIX 'no_plan';
   use Cwd qw(cwd);
   
   repeat_each(1);
   no_long_string();
   no_root_location();
   no_shuffle();
   log_level("info");
   
   add_block_preprocessor(sub {
       my ($block) = @_;
   
       my $user_yaml_config = <<_EOC_;
   apisix:
     node_listen: 1984
   _EOC_
   
       $block->set_value("yaml_config", $user_yaml_config);
   });
   
   run_tests;
   
   __DATA__
   
   === TEST 1: set route with correct token
   --- config
       location /t {
           content_by_lua_block {
               local t = require("lib.test_admin").req_self_with_http
               local res, err = t(
                   '/apisix/admin/routes/1',
                   "PUT",
                   [[{
                       "upstream": {
                           "nodes": {
                               "127.0.0.1:8080": 1
                           },
                           "type": "roundrobin"
                       },
                       "plugins": {
                           "example-plugin": {
                               "i": 11,
                               "ip": "127.0.0.1",
                               "port": 1981
                           }
                       },
                       "uri": "/index.html"
                   }]],
                   {x_api_key = "edd1c9f034335f136f87ad84b625c8f1"}
                   )
   
               if res.status > 299 then
                   ngx.status = res.status
               end
               ngx.say("done")
           }
       }
   --- request
   GET /t
   --- response_body
   done
   --- no_error_log
   [error]
   
   
   
   === TEST 2: reload plugins with api key(cookie)
   --- request
   PUT /apisix/admin/plugins/reload
   --- more_headers
   X-API-KEY: edd1c9f034335f136f87ad84b625c8f1
   --- error_code: 200
   --- no_error_log
   [error]
   ```
   
   you will found 
   
   ```
   2022/03/07 09:27:01 [info] 42098#74904228: *23 [lua] example-plugin.lua:72: destroy(): example-plugin destroy, client: 127.0.0.1, server: localhost, request: "PUT /apisix/admin/plugins/reload HTTP/1.1", host: "localhost"
   ```
   
   appeared twice.
   
   The first call is before adding the plugin, and the second call is before hot reload.


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