M1 Mac使用Core Tools 4.0.5030启动Azure Func失败求助

问题描述 #

在M1 Mac上执行func host start运行默认Python版Azure HTTP函数时，持续触发Arm64架构不支持Python的错误，无法初始化Python工作器提供程序，导致主机启动失败。已尝试以下方案但未解决问题：

• 通过npm安装azure-functions-core-tools@4.0.4483
• 复制_cython文件
• 更换多个Python版本（3.8、3.9、3.10，分别通过brew和conda安装）

错误详情 #

*  Executing task: . .venv/bin/activate && func host start 

Found Python version 3.9.16 (python3).

Azure Functions Core Tools
Core Tools Version:       4.0.5030 Commit hash: N/A  (64-bit)
Function Runtime Version: 4.15.2.20177

[2023-03-06T12:16:54.298Z] Failed to initialize worker provider for: /usr/local/lib/node_modules/azure-functions-core-tools/bin/workers/python
[2023-03-06T12:16:54.298Z] Microsoft.Azure.WebJobs.Script: Architecture Arm64 is not supported for language python.
[2023-03-06T12:16:54.776Z] Failed to initialize worker provider for: /usr/local/lib/node_modules/azure-functions-core-tools/bin/workers/python
[2023-03-06T12:16:54.776Z] Microsoft.Azure.WebJobs.Script: Architecture Arm64 is not supported for language python.
[2023-03-06T12:16:54.931Z] A host error has occurred during startup operation 'a05c2dec-c700-4cb8-a8b0-e66cf535215d'.
[2023-03-06T12:16:54.931Z] Microsoft.Azure.WebJobs.Script: Did not find functions with language [python].
[2023-03-06T12:16:54.938Z] Failed to stop host instance '53731cda-f5d1-461a-b6b9-f627368ea3e0'.
[2023-03-06T12:16:54.938Z] Microsoft.Azure.WebJobs.Host: The host has not yet started.
Value cannot be null. (Parameter 'provider')
[2023-03-06T12:16:54.957Z] A host error has occurred during startup operation '057668d3-eee0-4a79-bf04-7a09d4bf398b'.
[2023-03-06T12:16:54.957Z] Microsoft.Extensions.DependencyInjection: Cannot access a disposed object.
[2023-03-06T12:16:54.957Z] Object name: 'IServiceProvider'.

解决方案 #

1. 用Rosetta 2兼容模式运行终端 #

M1 Mac的Arm64架构下，部分Azure工具对Python的支持需要通过Rosetta转译：

• 找到「终端」应用，右键选择「显示简介」
• 勾选「使用Rosetta打开」
• 关闭当前终端，重新打开后执行func host start

2. 安装x86版本的Python和Core Tools #

• 安装x86版Python：
  在x86环境下通过brew安装Python：

  arch -x86_64 brew install python@3.9
  

  创建虚拟环境时指定x86版Python：

  arch -x86_64 python3.9 -m venv .venv
  source .venv/bin/activate
  

• 安装x86版Azure Functions Core Tools：
  在x86环境下通过npm安装：

  arch -x86_64 npm install -g azure-functions-core-tools@4 --unsafe-perm true
  

3. 检查函数配置文件 #

确认local.settings.json中的FUNCTIONS_WORKER_RUNTIME设置为python：

{
  "IsEncrypted": false,
  "Values": {
    "FUNCTIONS_WORKER_RUNTIME": "python",
    "AzureWebJobsStorage": "UseDevelopmentStorage=true"
  },
  "ConnectionStrings": {}
}

4. 清理旧缓存并重新初始化 #

删除旧的Python工作器文件，重新初始化函数项目：

rm -rf /usr/local/lib/node_modules/azure-functions-core-tools/bin/workers/python
arch -x86_64 func init --worker-runtime python

内容的提问来源于stack exchange，提问作者witi