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/ai-prompt-template.lua

@@ -0,0 +1,146 @@
+--
+-- 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 body_transformer  = require("apisix.plugins.body-transformer")
+local ipairs            = ipairs
+
+local prompt_schema = {
+    properties = {
+        role = {
+            type = "string",
+            enum = { "system", "user", "assistant" }
+        },
+        content = {
+            type = "string",
+            minLength = 1,
+        }
+    },
+    required = { "role", "content" }
+}
+
+local prompts = {
+    type = "array",
+    minItems = 1,
+    items = prompt_schema
+}
+
+local schema = {
+    type = "object",
+    properties = {
+        templates = {
+            type = "array",
+            minItems = 1,
+            items = {
+                type = "object",
+                properties = {
+                    name = {
+                        type = "string",
+                        minLength = 1,
+                    },
+                    template = {
+                        type = "object",
+                        properties = {
+                            model = {
+                                type = "string",
+                                minLength = 1,
+                            },
+                            messages = prompts
+                        }
+                    }
+                },
+                required = {"name", "template"}
+            }
+        },
+    },
+    required = {"templates"},
+}
+
+
+local _M = {
+    version  = 0.1,
+    priority = 1071,
+    name     = "ai-prompt-template",
+    schema   = schema,
+}
+
+local templates_lrucache = core.lrucache.new({
+    ttl = 300, count = 256
+})
+
+local templates_json_lrucache = core.lrucache.new({
+    ttl = 300, count = 256
+})
+
+function _M.check_schema(conf)
+    return core.schema.check(schema, conf)
+end
+
+
+local function get_request_body_table()
+    local body, err = core.request.get_body()
+    if not body then
+        return nil, { message = "could not get body: " .. err }
+    end
+
+    local body_tab, err = core.json.decode(body)
+    if not body_tab then
+        return nil, { message = "could not get parse JSON request body: ", err }
+    end
+
+    return body_tab
+end
+
+
+local function find_template(conf, template_name)
+    for _, template in ipairs(conf.templates) do
+        if template.name == template_name then
+            return template.template
+        end
+    end
+    return nil
+end
+
+function _M.rewrite(conf, ctx)
+    local body_tab, err = get_request_body_table()
+    if not body_tab then
+        return 400, err
+    end
+    local template_name = body_tab.template_name
+    if not template_name then
+        return 400, { message = "template name is missing in request." }
+    end
+
+    local template = templates_lrucache(template_name, conf, find_template, conf, template_name)
+    if not template then
+        return 400, { message = "template: " .. template_name .. " not configured." }
+    end
+
+    local template_json = templates_json_lrucache(template, template, core.json.encode, template)
+    core.log.info("sending template to body_transformer: ", template_json)
+    return body_transformer.rewrite(
+        {
+            request = {
+                template = template_json,
+                input_format = "json"
+            }
+        },
+        ctx
+    )
+end
+
+
+return _M