仅本地主机上的 Azure Functions 代理 returns 404

Question

我遇到的问题似乎与相同，但解决方案不起作用 - proxies.json 过去和现在都设置为“始终复制”。

我有 .net 核心 API 与 Azure Functions v2 和 docker 容器，我想向其代理一些请求。部署时一切正常，但本地代理 returns 404 响应。

proxies.json:

{
  "$schema": "http://json.schemastore.org/proxies",
  "proxies": {
    "review": {
      "debug": true,
      "matchCondition": {
        "route": "api/{docId}/proxy/review/{*restOfPath}"
      },
      "backendUri": "https://my-docker-container.azurewebsites.net/{restOfPath}",
      "requestOverrides": {
        "backend.request.headers.Some-Header": "request.headers.Cookie"
      }
    }
  }
}

本地 docker 容器正在侦听端口 3000，因此我将 backendUri 替换为 http://localhost:3000/{restOfPath}，但它 returns 404。Docker 端点永远不会打。我可以确认 docker 容器是运行并且通过从 Postman 调用 expected URL 来工作。

除了解决方案之外，还有什么方法可以尝试以某种方式更多地调试它吗？无法从日志中获取任何有用信息。

使用已部署资源时的成功日志：

[2021-08-02 10:01:06] Executing HTTP request: {
[2021-08-02 10:01:06]   "requestId": "8c60239b-046d-464b-8a3a-09e0f5c55090",
[2021-08-02 10:01:06]   "method": "POST",
[2021-08-02 10:01:06]   "uri": "/api/4708a861-d8b2-4033-a1da-1a07afca4161/proxy/review/api/review"
[2021-08-02 10:01:06] }
[2021-08-02 10:01:06] Function started (Id=ebfbabc0-1a5b-4129-9280-14ae322e23ba)
[2021-08-02 10:01:06] Executing 'Functions.review' (Reason='This function was programmatically called via the host APIs.', Id=ebfbabc0-1a5b-4129-9280-14ae322e23ba)
[2021-08-02 10:01:06] Executing request via Azure Function Proxies
[2021-08-02 10:01:22] Function completed (Success, Id=ebfbabc0-1a5b-4129-9280-14ae322e23ba, Duration=16363ms)
[2021-08-02 10:01:22] Executed 'Functions.review' (Succeeded, Id=ebfbabc0-1a5b-4129-9280-14ae322e23ba)
[2021-08-02 10:01:22] Executed HTTP request: {
[2021-08-02 10:01:22]   "requestId": "8c60239b-046d-464b-8a3a-09e0f5c55090",
[2021-08-02 10:01:22]   "method": "POST",
[2021-08-02 10:01:22]   "uri": "/api/4708a861-d8b2-4033-a1da-1a07afca4161/proxy/review/api/review",
[2021-08-02 10:01:22]   "authorizationLevel": "Anonymous",
[2021-08-02 10:01:22]   "status": "OK"
[2021-08-02 10:01:22] }

使用本地资源的日志不成功：

[2021-08-02 07:58:02] Executing HTTP request: {
[2021-08-02 07:58:02]   "requestId": "f562eae9-b2c7-4ef8-84ba-83d42f59c4b7",
[2021-08-02 07:58:02]   "method": "POST",
[2021-08-02 07:58:02]   "uri": "/api/4708a861-d8b2-4033-a1da-1a07afca4161/proxy/review/api/review"
[2021-08-02 07:58:02] }
[2021-08-02 07:58:02] Function started (Id=28149473-125c-4fc4-958d-348604559e10)
[2021-08-02 07:58:02] Executing 'Functions.review' (Reason='This function was programmatically called via the host APIs.', Id=28149473-125c-4fc4-958d-348604559e10)
[2021-08-02 07:58:02] Executing request via Azure Function Proxies
[2021-08-02 07:58:02] Function completed (Success, Id=28149473-125c-4fc4-958d-348604559e10, Duration=169ms)
[2021-08-02 07:58:02] Executed 'Functions.review' (Succeeded, Id=28149473-125c-4fc4-958d-348604559e10)
[2021-08-02 07:58:02] Executed HTTP request: {
[2021-08-02 07:58:02]   "requestId": "f562eae9-b2c7-4ef8-84ba-83d42f59c4b7",
[2021-08-02 07:58:02]   "method": "POST",
[2021-08-02 07:58:02]   "uri": "/api/4708a861-d8b2-4033-a1da-1a07afca4161/proxy/review/api/review",
[2021-08-02 07:58:02]   "authorizationLevel": "Anonymous",
[2021-08-02 07:58:02]   "status": "NotFound"
[2021-08-02 07:58:02] }

更新： 如果有任何疑问，也许 Docker 与它有关，它可以被划掉。创建了新的虚拟机 API，这是同样的问题。

Answer 1

找到解决方案。感谢 https://markheath.net/post/azure-functions-v2-proxies.

需要在 local.settings.json

中添加 "AZURE_FUNCTION_PROXY_DISABLE_LOCAL_CALL": true

在此之后偶然发现了另一个问题 - backendUri 中的斜杠正在被编码，所以而不是例如http://localhost:3000/api/review 它正在调用 http://localhost:3000/api%2Freview。同样，只有本地问题。

要解决此问题，需要将 "AZURE_FUNCTION_PROXY_BACKEND_URL_DECODE_SLASHES": true 添加到 local.settings.json

仅本地主机上的 Azure Functions 代理 returns 404

Azure Functions proxy returns 404 on localhost only

proxy

azure

azure-functions