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/inspect/init.lua

@@ -0,0 +1,128 @@
+--
+-- 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 dbg = require("apisix.inspect.dbg")
+local lfs = require("lfs")
+local pl_path = require("pl.path")
+local io = io
+local table_insert = table.insert
+local pcall = pcall
+local ipairs = ipairs
+local os = os
+local ngx = ngx
+local loadstring = loadstring
+local format = string.format
+
+local _M = {}
+
+local last_modified = 0
+
+local stop = false
+
+local running = false
+
+local last_report_time = 0
+
+local REPORT_INTERVAL = 30 -- secs
+
+local function run_lua_file(file)
+    local f, err = io.open(file, "rb")
+    if not f then
+        return false, err
+    end
+    local code, err = f:read("*all")
+    f:close()
+    if code == nil then
+        return false, format("cannot read hooks file: %s", err)
+    end
+    local func, err = loadstring(code)
+    if not func then
+        return false, err
+    end
+    func()
+    return true
+end
+
+local function setup_hooks(file)
+    if pl_path.exists(file) then
+        dbg.unset_all()
+        local _, err = pcall(run_lua_file, file)
+        local hooks = {}
+        for _, hook in ipairs(dbg.hooks()) do
+            table_insert(hooks, hook.key)
+        end
+        core.log.warn("set hooks: err: ", err, ", hooks: ", core.json.delay_encode(hooks))
+    end
+end
+
+local function reload_hooks(premature, delay, file)
+    if premature or stop then
+        stop = false
+        running = false
+        return
+    end
+
+    local time, err = lfs.attributes(file, 'modification')
+    if err then
+        if last_modified ~= 0 then
+            core.log.info(err, ", disable all hooks")
+            dbg.unset_all()
+            last_modified = 0
+        end
+    elseif time ~= last_modified then
+        setup_hooks(file)
+        last_modified = time
+    else
+        local ts = os.time()
+        if ts - last_report_time >= REPORT_INTERVAL then
+            local hooks = {}
+            for _, hook in ipairs(dbg.hooks()) do
+                table_insert(hooks, hook.key)
+            end
+            core.log.info("alive hooks: ", core.json.encode(hooks))
+            last_report_time = ts
+        end
+    end
+
+    local ok, err = ngx.timer.at(delay, reload_hooks, delay, file)
+    if not ok then
+        core.log.error("failed to create the timer: ", err)
+        running = false
+    end
+end
+
+function _M.init(delay, file)
+    if not running then
+        file = file or "/usr/local/apisix/plugin_inspect_hooks.lua"
+        delay = delay or 3
+
+        setup_hooks(file)
+
+        local ok, err = ngx.timer.at(delay, reload_hooks, delay, file)
+        if not ok then
+            core.log.error("failed to create the timer: ", err)
+            return
+        end
+        running = true
+    end
+end
+
+function _M.destroy()
+    stop = true
+end
+
+return _M