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/routes.lua

@@ -0,0 +1,184 @@
+--
+-- 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 expr = require("resty.expr.v1")
+local core = require("apisix.core")
+local apisix_upstream = require("apisix.upstream")
+local resource = require("apisix.admin.resource")
+local schema_plugin = require("apisix.admin.plugins").check_schema
+local type = type
+local loadstring = loadstring
+local ipairs = ipairs
+local jp = require("jsonpath")
+
+local function validate_post_arg(node)
+    if type(node) ~= "table" then
+        return true
+    end
+
+    -- Handle post_arg conditions
+    if #node >= 3 and type(node[1]) == "string" and node[1]:find("^post_arg%.") then
+        local key = node[1]
+        local json_path = "$." .. key:sub(11)  -- Remove "post_arg." prefix
+        local _, err = jp.parse(json_path)
+        if err then
+            return false, err
+        end
+        return true
+    end
+
+    for _, child in ipairs(node) do
+        local ok, err = validate_post_arg(child)
+        if not ok then
+            return false, err
+        end
+    end
+    return true
+end
+
+
+local function check_conf(id, conf, need_id, schema)
+    if conf.host and conf.hosts then
+        return nil, {error_msg = "only one of host or hosts is allowed"}
+    end
+
+    if conf.remote_addr and conf.remote_addrs then
+        return nil, {error_msg = "only one of remote_addr or remote_addrs is "
+                                 .. "allowed"}
+    end
+
+    local ok, err = core.schema.check(schema, conf)
+    if not ok then
+        return nil, {error_msg = "invalid configuration: " .. err}
+    end
+
+    local upstream_conf = conf.upstream
+    if upstream_conf then
+        local ok, err = apisix_upstream.check_upstream_conf(upstream_conf)
+        if not ok then
+            return nil, {error_msg = err}
+        end
+    end
+
+    local upstream_id = conf.upstream_id
+    if upstream_id then
+        local key = "/upstreams/" .. upstream_id
+        local res, err = core.etcd.get(key)
+        if not res then
+            return nil, {error_msg = "failed to fetch upstream info by "
+                                     .. "upstream id [" .. upstream_id .. "]: "
+                                     .. err}
+        end
+
+        if res.status ~= 200 then
+            return nil, {error_msg = "failed to fetch upstream info by "
+                                     .. "upstream id [" .. upstream_id .. "], "
+                                     .. "response code: " .. res.status}
+        end
+    end
+
+    local service_id = conf.service_id
+    if service_id then
+        local key = "/services/" .. service_id
+        local res, err = core.etcd.get(key)
+        if not res then
+            return nil, {error_msg = "failed to fetch service info by "
+                                     .. "service id [" .. service_id .. "]: "
+                                     .. err}
+        end
+
+        if res.status ~= 200 then
+            return nil, {error_msg = "failed to fetch service info by "
+                                     .. "service id [" .. service_id .. "], "
+                                     .. "response code: " .. res.status}
+        end
+    end
+
+    local plugin_config_id = conf.plugin_config_id
+    if plugin_config_id then
+        local key = "/plugin_configs/" .. plugin_config_id
+        local res, err = core.etcd.get(key)
+        if not res then
+            return nil, {error_msg = "failed to fetch plugin config info by "
+                                     .. "plugin config id [" .. plugin_config_id .. "]: "
+                                     .. err}
+        end
+
+        if res.status ~= 200 then
+            return nil, {error_msg = "failed to fetch plugin config info by "
+                                     .. "plugin config id [" .. plugin_config_id .. "], "
+                                     .. "response code: " .. res.status}
+        end
+    end
+
+    if conf.plugins then
+        local ok, err = schema_plugin(conf.plugins)
+        if not ok then
+            return nil, {error_msg = err}
+        end
+    end
+
+    if conf.vars then
+        ok, err = expr.new(conf.vars)
+        if not ok then
+            return nil, {error_msg = "failed to validate the 'vars' expression: " .. err}
+        end
+    end
+
+        ok, err = validate_post_arg(conf.vars)
+        if not ok  then
+            return nil, {error_msg = "failed to validate the 'vars' expression: " ..
+                                     err}
+        end
+
+    if conf.filter_func then
+        local func, err = loadstring("return " .. conf.filter_func)
+        if not func then
+            return nil, {error_msg = "failed to load 'filter_func' string: "
+                                     .. err}
+        end
+
+        if type(func()) ~= "function" then
+            return nil, {error_msg = "'filter_func' should be a function"}
+        end
+    end
+
+    if conf.script then
+        local obj, err = loadstring(conf.script)
+        if not obj then
+            return nil, {error_msg = "failed to load 'script' string: "
+                                     .. err}
+        end
+
+        if type(obj()) ~= "table" then
+            return nil, {error_msg = "'script' should be a Lua object"}
+        end
+    end
+
+    return true
+end
+
+
+return resource.new({
+    name = "routes",
+    kind = "route",
+    schema = core.schema.route,
+    checker = check_conf,
+    list_filter_fields = {
+        service_id = true,
+        upstream_id = true,
+    },
+})