AWS Lambda中使用CrewAI时遭遇OSError: Read-only file system错误的解决方法咨询

我在AWS环境里通过API Gateway调用Lambda函数，同时使用CrewAI框架时碰到了权限问题，具体的报错信息如下：

[ERROR] OSError: [Errno 30] Read-only file system: '/home/sbx_user1051'
Traceback (most recent call last):
  File "/var/lang/lib/python3.11/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1147, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 940, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/var/task/src/app.py", line 7, in <module>
    from main import process_message
  File "/var/task/src/main.py", line 5, in <module>
    from tools import Tools
  File "/var/task/src/tools.py", line 1, in <module>
    from crewai_tools import WebsiteSearchTool, TXTSearchTool
  File "/var/task/crewai_tools/__init__.py", line 1, in <module>
    from .tools import (
  File "/var/task/crewai_tools/tools/__init__.py", line 4, in <module>
    from .code_docs_search_tool.code_docs_search_tool import CodeDocsSearchTool
  File "/var/task/crewai_tools/tools/code_docs_search_tool/code_docs_search_tool.py", line 3, in <module>
    from embedchain.models.data_type import DataType
  File "/var/task/embedchain/__init__.py", line 5, in <module>
    from embedchain.app import App  # noqa: F401
  File "/var/task/embedchain/app.py", line 42, in <module>
    from mem0 import Memory
  File "/var/task/mem0/__init__.py", line 5, in <module>
    from mem0.client.main import MemoryClient, AsyncMemoryClient  # noqa
  File "/var/task/mem0/client/main.py", line 9, in <module>
    from mem0.memory.setup import get_user_id, setup_config
  File "/var/task/mem0/memory/setup.py", line 8, in <module>
    os.makedirs(mem0_dir, exist_ok=True)
  File "<frozen os>", line 215, in makedirs
  File "<frozen os>", line 225, in makedirs

我清楚问题的根源：AWS Lambda的文件系统大部分路径都是只读的，只有/tmp目录支持写入，但CrewAI的依赖库（从报错栈看是mem0）试图在/home/sbx_user1051这个不可写路径创建目录，所以触发了错误。

我已经尝试了几种解决方法，但都没见效：

• 参考相关讨论的建议，设置了环境变量CREWAI_STORAGE_DIR='/tmp'，想把存储目录指向可写的/tmp
• 还尝试在代码里手动指定目录，强制相关操作使用/tmp：

mem0_dir = os.getenv('CREWAI_STORAGE_DIR', '/tmp')
os.makedirs(mem0_dir, exist_ok=True)
setup_config(user_dir=mem0_dir)

• 也参照相关issue的说明，直接配置了环境变量：

CREWAI_STORAGE_DIR='/tmp'

我的期望是能正常通过API Gateway发起请求，让所有需要创建文件或目录的操作都自动在/tmp目录下完成，不要再触发只读文件系统的错误。

备注：内容来源于stack exchange，提问作者Kevin Ramlow