feat(apisix): add Cloudron package

- Implements Apache APISIX packaging for Cloudron platform.
- Includes Dockerfile, CloudronManifest.json, and start.sh.
- Configured to use Cloudron's etcd addon.

🤖 Generated with Gemini CLI
Co-Authored-By: Gemini <noreply@google.com>

CloudronPackages/APISIX/apisix-source/t/control/plugin-metadata.t

@@ -0,0 +1,113 @@
+#
+# 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';
+
+add_block_preprocessor(sub {
+    my ($block) = @_;
+
+    if (!$block->request) {
+        $block->set_value("request", "GET /t");
+    }
+
+});
+
+run_tests;
+
+__DATA__
+
+=== TEST 1: add plugin metadatas
+--- config
+    location /t {
+        content_by_lua_block {
+            local t = require("lib.test_admin").test
+            local code = t('/apisix/admin/plugin_metadata/example-plugin',
+                ngx.HTTP_PUT,
+                [[{
+                    "skey": "val",
+                    "ikey": 1
+                }]]
+                )
+            if code >= 300 then
+                ngx.status = code
+                return
+            end
+
+            local code = t('/apisix/admin/plugin_metadata/file-logger',
+                ngx.HTTP_PUT,
+                [[
+                {"log_format": {"upstream_response_time": "$upstream_response_time"}}
+                ]]
+                )
+            if code >= 300 then
+                ngx.status = code
+                return
+            end
+        }
+    }
+--- error_code: 200
+
+
+
+=== TEST 2: dump all plugin metadatas
+--- config
+    location /t {
+        content_by_lua_block {
+            local t = require("lib.test_admin").test
+            local _, _, res = t('/v1/plugin_metadatas', ngx.HTTP_GET)
+            local json = require("toolkit.json")
+            res = json.decode(res)
+            for _, metadata in ipairs(res) do
+                if metadata.id == "file-logger" then
+                    ngx.say("check log_format: ", metadata.log_format.upstream_response_time == "$upstream_response_time")
+                elseif metadata.id == "example-plugin" then
+                    ngx.say("check skey: ", metadata.skey == "val")
+                    ngx.say("check ikey: ", metadata.ikey == 1)
+                end
+            end
+        }
+    }
+--- response_body
+check log_format: true
+check skey: true
+check ikey: true
+
+
+
+=== TEST 3: dump file-logger metadata
+--- config
+    location /t {
+        content_by_lua_block {
+            local t = require("lib.test_admin").test
+            local _, _, res = t('/v1/plugin_metadata/file-logger', ngx.HTTP_GET)
+            local json = require("toolkit.json")
+            metadata = json.decode(res)
+            if metadata.id == "file-logger" then
+                ngx.say("check log_format: ", metadata.log_format.upstream_response_time == "$upstream_response_time")
+            end
+        }
+    }
+--- response_body
+check log_format: true
+
+
+
+=== TEST 4: plugin without metadata
+--- request
+GET /v1/plugin_metadata/batch-requests
+--- error_code: 404
+--- response_body
+{"error_msg":"plugin metadata[batch-requests] not found"}