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/plugins/udp-logger.lua

@@ -0,0 +1,145 @@
+--
+-- 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 log_util = require("apisix.utils.log-util")
+local bp_manager_mod = require("apisix.utils.batch-processor-manager")
+local plugin_name = "udp-logger"
+local tostring = tostring
+local ngx = ngx
+local udp = ngx.socket.udp
+
+
+local batch_processor_manager = bp_manager_mod.new("udp logger")
+local schema = {
+    type = "object",
+    properties = {
+        host = {type = "string"},
+        port = {type = "integer", minimum = 0},
+        timeout = {type = "integer", minimum = 1, default = 3},
+        log_format = {type = "object"},
+        include_req_body = {type = "boolean", default = false},
+        include_req_body_expr = {
+            type = "array",
+            minItems = 1,
+            items = {
+                type = "array"
+            }
+        },
+        include_resp_body = { type = "boolean", default = false },
+        include_resp_body_expr = {
+            type = "array",
+            minItems = 1,
+            items = {
+                type = "array"
+            }
+        },
+    },
+    required = {"host", "port"}
+}
+
+local metadata_schema = {
+    type = "object",
+    properties = {
+        log_format = {
+            type = "object"
+        }
+    },
+}
+
+local _M = {
+    version = 0.1,
+    priority = 400,
+    name = plugin_name,
+    metadata_schema = metadata_schema,
+    schema = batch_processor_manager:wrap_schema(schema),
+}
+
+
+function _M.check_schema(conf, schema_type)
+    if schema_type == core.schema.TYPE_METADATA then
+        return core.schema.check(metadata_schema, conf)
+    end
+
+    return core.schema.check(schema, conf)
+end
+
+
+local function send_udp_data(conf, log_message)
+    local err_msg
+    local res = true
+    local sock = udp()
+    sock:settimeout(conf.timeout * 1000)
+
+    core.log.info("sending a batch logs to ", conf.host, ":", conf.port)
+    core.log.info("sending log_message: ", log_message)
+
+    local ok, err = sock:setpeername(conf.host, conf.port)
+
+    if not ok then
+        return false, "failed to connect to UDP server: host[" .. conf.host
+                    .. "] port[" .. tostring(conf.port) .. "] err: " .. err
+    end
+
+    ok, err = sock:send(log_message)
+    if not ok then
+        res = false
+        err_msg = "failed to send data to UDP server: host[" .. conf.host
+                  .. "] port[" .. tostring(conf.port) .. "] err:" .. err
+    end
+
+    ok, err = sock:close()
+    if not ok then
+        core.log.error("failed to close the UDP connection, host[",
+                        conf.host, "] port[", conf.port, "] ", err)
+    end
+
+    return res, err_msg
+end
+
+
+function _M.body_filter(conf, ctx)
+    log_util.collect_body(conf, ctx)
+end
+
+
+function _M.log(conf, ctx)
+    local entry = log_util.get_log_entry(plugin_name, conf, ctx)
+
+    if batch_processor_manager:add_entry(conf, entry) then
+        return
+    end
+
+    -- Generate a function to be executed by the batch processor
+    local func = function(entries, batch_max_size)
+        local data, err
+        if batch_max_size == 1 then
+            data, err = core.json.encode(entries[1]) -- encode as single {}
+        else
+            data, err = core.json.encode(entries) -- encode as array [{}]
+        end
+
+        if not data then
+            return false, 'error occurred while encoding the data: ' .. err
+        end
+
+        return send_udp_data(conf, data)
+    end
+
+    batch_processor_manager:add_entry_to_new_processor(conf, entry, ctx, func)
+end
+
+return _M