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/utils/rfc5424.lua

@@ -0,0 +1,114 @@
+--
+-- 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 LOG_EMERG     = 0       --  system is unusable
+local LOG_ALERT     = 1       --  action must be taken immediately
+local LOG_CRIT      = 2       --  critical conditions
+local LOG_ERR       = 3       --  error conditions
+local LOG_WARNING   = 4       --  warning conditions
+local LOG_NOTICE    = 5       --  normal but significant condition
+local LOG_INFO      = 6       --  informational
+local LOG_DEBUG     = 7       --  debug-level messages
+
+local LOG_KERN      = 0       --  kernel messages
+local LOG_USER      = 1       --  random user-level messages
+local LOG_MAIL      = 2       --  mail system
+local LOG_DAEMON    = 3       --  system daemons
+local LOG_AUTH      = 4       --  security/authorization messages
+local LOG_SYSLOG    = 5       --  messages generated internally by syslogd
+local LOG_LPR       = 6       --  line printer subsystem
+local LOG_NEWS      = 7       --  network news subsystem
+local LOG_UUCP      = 8       --  UUCP subsystem
+local LOG_CRON      = 9       --  clock daemon
+local LOG_AUTHPRIV  = 10      --  security/authorization messages (private)
+local LOG_FTP       = 11      --  FTP daemon
+local LOG_LOCAL0    = 16      --  reserved for local use
+local LOG_LOCAL1    = 17      --  reserved for local use
+local LOG_LOCAL2    = 18      --  reserved for local use
+local LOG_LOCAL3    = 19      --  reserved for local use
+local LOG_LOCAL4    = 20      --  reserved for local use
+local LOG_LOCAL5    = 21      --  reserved for local use
+local LOG_LOCAL6    = 22      --  reserved for local use
+local LOG_LOCAL7    = 23      --  reserved for local use
+
+local Facility = {
+    KERN = LOG_KERN,
+    USER = LOG_USER,
+    MAIL = LOG_MAIL,
+    DAEMON = LOG_DAEMON,
+    AUTH = LOG_AUTH,
+    SYSLOG = LOG_SYSLOG,
+    LPR = LOG_LPR,
+    NEWS = LOG_NEWS,
+    UUCP = LOG_UUCP,
+    CRON = LOG_CRON,
+    AUTHPRIV = LOG_AUTHPRIV,
+    FTP = LOG_FTP,
+    LOCAL0 = LOG_LOCAL0,
+    LOCAL1 = LOG_LOCAL1,
+    LOCAL2 = LOG_LOCAL2,
+    LOCAL3 = LOG_LOCAL3,
+    LOCAL4 = LOG_LOCAL4,
+    LOCAL5 = LOG_LOCAL5,
+    LOCAL6 = LOG_LOCAL6,
+    LOCAL7 = LOG_LOCAL7,
+}
+
+local Severity = {
+    EMEGR = LOG_EMERG,
+    ALERT = LOG_ALERT,
+    CRIT = LOG_CRIT,
+    ERR = LOG_ERR,
+    WARNING = LOG_WARNING,
+    NOTICE = LOG_NOTICE,
+    INFO = LOG_INFO,
+    DEBUG = LOG_DEBUG,
+}
+
+local log_util = require("apisix.utils.log-util")
+local ipairs = ipairs
+local str_format = string.format
+
+local _M = { version = 0.1 }
+
+
+function _M.encode(facility, severity, hostname, appname, pid, msg, structured_data)
+    local pri = (Facility[facility] * 8 + Severity[severity])
+    local t = log_util.get_rfc3339_zulu_timestamp()
+    if not hostname then
+        hostname = "-"
+    end
+
+    if not appname then
+        appname = "-"
+    end
+
+    local structured_data_str = "-"
+
+    if structured_data then
+        structured_data_str = "[logservice"
+        for _, sd_param in ipairs(structured_data) do
+            structured_data_str = structured_data_str .. " " .. sd_param.name
+                                  .. "=\"" .. sd_param.value .. "\""
+        end
+        structured_data_str = structured_data_str .. "]"
+    end
+
+    return str_format("<%d>1 %s %s %s %d - %s %s\n", pri, t, hostname,
+                    appname, pid, structured_data_str, msg)
+end
+
+return _M