在Azure Kubernetes服务中部署时导入cv2错误-python

问题描述

我已经阅读过有关天蓝色应用程序服务的类似问题，但是我仍然找不到答案。我试图在azure kubernetes服务中部署模型，但是在导入cv2时遇到错误（这对我来说是必不可少的）。

我的环境.yaml文件中包含Opencv-python：

name: project_environment
dependencies:
  # The python interpreter version.
  # Currently Azure ML only supports 3.5.2 and later.
- python=3.6.2

- pip:
  # You must list azureml-defaults as a pip dependency
  - azureml-defaults>=1.0.45
  - Cython
  - matplotlib>=3.2.2
  - numpy>=1.18.5
  - opencv-python>=4.1.2
  - pillow
  - PyYAML>=5.3
  - scipy>=1.4.1
  - torch>=1.6.0
  - torchvision>=0.7.0
  - tqdm>=4.41.0
channels:
- conda-forge

我的部署如下：

aks_service = Model.deploy(ws,models=[model],inference_config=inference_config,deployment_config=gpu_aks_config,deployment_target=aks_target,name=aks_service_name)

我收到此错误：

    Traceback (most recent call last):
  File "/azureml-envs/azureml_659b55e5b05510a45f41f0ca31d3ac02/lib/python3.6/site-packages/gunicorn/arbiter.py",line 583,in spawn_worker
    worker.init_process()
  File "/azureml-envs/azureml_659b55e5b05510a45f41f0ca31d3ac02/lib/python3.6/site-packages/gunicorn/workers/base.py",line 129,in init_process
    self.load_wsgi()
  File "/azureml-envs/azureml_659b55e5b05510a45f41f0ca31d3ac02/lib/python3.6/site-packages/gunicorn/workers/base.py",line 138,in load_wsgi
    self.wsgi = self.app.wsgi()
  File "/azureml-envs/azureml_659b55e5b05510a45f41f0ca31d3ac02/lib/python3.6/site-packages/gunicorn/app/base.py",line 67,in wsgi
    self.callable = self.load()
  File "/azureml-envs/azureml_659b55e5b05510a45f41f0ca31d3ac02/lib/python3.6/site-packages/gunicorn/app/wsgiapp.py",line 52,in load
    return self.load_wsgiapp()
  File "/azureml-envs/azureml_659b55e5b05510a45f41f0ca31d3ac02/lib/python3.6/site-packages/gunicorn/app/wsgiapp.py",line 41,in load_wsgiapp
    return util.import_app(self.app_uri)
  File "/azureml-envs/azureml_659b55e5b05510a45f41f0ca31d3ac02/lib/python3.6/site-packages/gunicorn/util.py",line 350,in import_app
    __import__(module)
  File "/var/azureml-server/wsgi.py",line 1,in <module>
    import create_app
  File "/var/azureml-server/create_app.py",line 3,in <module>
    from app import main
  File "/var/azureml-server/app.py",line 32,in <module>
    from aml_blueprint import AMLBlueprint
  File "/var/azureml-server/aml_blueprint.py",line 23,in <module>
    main_module_spec.loader.exec_module(main)
  File "/var/azureml-app/score.py",line 8,in <module>
    import cv2
  File "/azureml-envs/azureml_659b55e5b05510a45f41f0ca31d3ac02/lib/python3.6/site-packages/cv2/__init__.py",line 5,in <module>
    from .cv2 import *
ImportError: libGL.so.1: cannot open shared object file: No such file or directory
Worker exiting (pid: 41)

解决方法

您可以访问要安装的节点的终端吗？ 如果是，请执行以下步骤：

sudo apt update
sudo apt install libgl1-mesa-glx

,

这有时可能会出错，但是我的解决方法是安装opencv-python-headless而不是opencv。

在环境.yaml文件中，只需替换：

- opencv-python>=4.1.2

具有：

- opencv-python-headless