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/apisix/admin/proto.lua

@@ -0,0 +1,111 @@
+--
+-- 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 type = type
+local ipairs = ipairs
+local core = require("apisix.core")
+local resource = require("apisix.admin.resource")
+local get_routes = require("apisix.router").http_routes
+local get_services = require("apisix.http.service").services
+local compile_proto = require("apisix.plugins.grpc-transcode.proto").compile_proto
+local tostring = tostring
+
+
+local function check_conf(id, conf, need_id, schema)
+    local ok, err = core.schema.check(schema, conf)
+    if not ok then
+        return nil, {error_msg = "invalid configuration: " .. err}
+    end
+
+    local ok, err = compile_proto(conf.content)
+    if not ok then
+        return nil, {error_msg = "invalid content: " .. err}
+    end
+
+    return true
+end
+
+
+local function check_proto_used(plugins, deleting, ptype, pid)
+
+    --core.log.info("check_proto_used plugins: ", core.json.delay_encode(plugins, true))
+    --core.log.info("check_proto_used deleting: ", deleting)
+    --core.log.info("check_proto_used ptype: ", ptype)
+    --core.log.info("check_proto_used pid: ", pid)
+
+    if plugins then
+        if type(plugins) == "table" and plugins["grpc-transcode"]
+           and plugins["grpc-transcode"].proto_id
+           and tostring(plugins["grpc-transcode"].proto_id) == deleting then
+            return false, {error_msg = "can not delete this proto, "
+                                     .. ptype .. " [" .. pid
+                                     .. "] is still using it now"}
+        end
+    end
+    return true
+end
+
+local function delete_checker(id)
+    core.log.info("proto delete: ", id)
+
+    local routes, routes_ver = get_routes()
+
+    core.log.info("routes: ", core.json.delay_encode(routes, true))
+    core.log.info("routes_ver: ", routes_ver)
+
+    if routes_ver and routes then
+        for _, route in ipairs(routes) do
+            core.log.info("proto delete route item: ", core.json.delay_encode(route, true))
+            if type(route) == "table" and route.value and route.value.plugins then
+                local ret, err = check_proto_used(route.value.plugins, id, "route",route.value.id)
+                if not ret then
+                    return 400, err
+                end
+            end
+        end
+    end
+    core.log.info("proto delete route ref check pass: ", id)
+
+    local services, services_ver = get_services()
+
+    core.log.info("services: ", core.json.delay_encode(services, true))
+    core.log.info("services_ver: ", services_ver)
+
+    if services_ver and services then
+        for _, service in ipairs(services) do
+            if type(service) == "table" and service.value and service.value.plugins then
+                local ret, err = check_proto_used(service.value.plugins, id,
+                                                "service", service.value.id)
+                if not ret then
+                    return 400, err
+                end
+            end
+        end
+    end
+    core.log.info("proto delete service ref check pass: ", id)
+
+    return nil, nil
+end
+
+
+return resource.new({
+    name = "protos",
+    kind = "proto",
+    schema = core.schema.proto,
+    checker = check_conf,
+    unsupported_methods = {"patch"},
+    delete_checker = delete_checker
+})