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/redis.lua

@@ -0,0 +1,74 @@
+--
+-- 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 redis_new     = require("resty.redis").new
+local core          = require("apisix.core")
+
+
+local _M = {version = 0.1}
+
+local function redis_cli(conf)
+    local red = redis_new()
+    local timeout = conf.redis_timeout or 1000    -- default 1sec
+
+    red:set_timeouts(timeout, timeout, timeout)
+
+    local sock_opts = {
+        ssl = conf.redis_ssl,
+        ssl_verify = conf.redis_ssl_verify
+    }
+
+    local ok, err = red:connect(conf.redis_host, conf.redis_port or 6379, sock_opts)
+    if not ok then
+        core.log.error(" redis connect error, error: ", err)
+        return false, err
+    end
+
+    local count
+    count, err = red:get_reused_times()
+    if 0 == count then
+        if conf.redis_password and conf.redis_password ~= '' then
+            local ok, err
+            if conf.redis_username then
+                ok, err = red:auth(conf.redis_username, conf.redis_password)
+            else
+                ok, err = red:auth(conf.redis_password)
+            end
+            if not ok then
+                return nil, err
+            end
+        end
+
+        -- select db
+        if conf.redis_database ~= 0 then
+            local ok, err = red:select(conf.redis_database)
+            if not ok then
+                return false, "failed to change redis db, err: " .. err
+            end
+        end
+    elseif err then
+        -- core.log.info(" err: ", err)
+        return nil, err
+    end
+    return red, nil
+end
+
+
+function _M.new(conf)
+    return redis_cli(conf)
+end
+
+return _M