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/xds-library/config_xds.t

@@ -0,0 +1,129 @@
+#
+# 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);
+my $apisix_home = $ENV{APISIX_HOME} || cwd();
+
+repeat_each(1);
+no_long_string();
+no_root_location();
+log_level("info");
+
+add_block_preprocessor(sub {
+    my ($block) = @_;
+
+    if (!$block->request) {
+        $block->set_value("request", "GET /t");
+    }
+
+    if (!$block->no_error_log) {
+        $block->set_value("no_error_log", "[error]\n[alert]");
+    }
+
+    my $lua_deps_path = $block->lua_deps_path // <<_EOC_;
+        lua_package_path "$apisix_home/?.lua;$apisix_home/?/init.lua;$apisix_home/deps/share/lua/5.1/?/init.lua;$apisix_home/deps/share/lua/5.1/?.lua;$apisix_home/apisix/?.lua;$apisix_home/t/?.lua;;";
+        lua_package_cpath "$apisix_home/?.so;$apisix_home/t/xds-library/?.so;$apisix_home/deps/lib/lua/5.1/?.so;$apisix_home/deps/lib64/lua/5.1/?.so;;";
+_EOC_
+
+    $block->set_value("lua_deps_path", $lua_deps_path);
+
+    my $extra_init_by_lua = <<_EOC_;
+    --
+    local config_xds = require("apisix.core.config_xds")
+
+    local inject = function(mod, name)
+        local old_f = mod[name]
+        mod[name] = function (...)
+            ngx.log(ngx.WARN, "config_xds run ", name)
+            return { true }
+        end
+    end
+
+    inject(config_xds, "new")
+
+_EOC_
+
+    $block->set_value("extra_init_by_lua", $extra_init_by_lua);
+
+    if (!$block->yaml_config) {
+        my $yaml_config = <<_EOC_;
+apisix:
+    node_listen: 1984
+deployment:
+    role: data_plane
+    role_data_plane:
+        config_provider: xds
+_EOC_
+
+        $block->set_value("yaml_config", $yaml_config);
+    }
+});
+
+run_tests;
+
+__DATA__
+
+=== TEST 1: load xDS library successfully
+--- config
+    location /t {
+        content_by_lua_block {
+            ngx.say("ok")
+        }
+    }
+--- no_error_log eval
+qr/can not load xDS library/
+
+
+
+=== TEST 2: read data form shdict that wirted by xDS library
+--- config
+    location /t {
+        content_by_lua_block {
+            -- wait for xds library sync data
+            ngx.sleep(1.5)
+            local core = require("apisix.core")
+            local value = ngx.shared["xds-config"]:get("/routes/1")
+            local route_conf, err = core.json.decode(value)
+            local json_encode = require("toolkit.json").encode
+            ngx.say(json_encode(route_conf.uri))
+        }
+    }
+--- response_body
+"/hello"
+
+
+
+=== TEST 3: read conf version
+--- config
+    location /t {
+        content_by_lua_block {
+            local core = require("apisix.core")
+            local version
+            for i = 1, 5 do
+                version = ngx.shared["xds-config-version"]:get("version")
+                if version then
+                    ngx.say(version)
+                    break
+                end
+                -- wait for xds library sync data
+                ngx.sleep(1.5)
+            end
+        }
+    }
+--- response_body eval
+qr/^\d{13}$/