Azure Deployment Failure

Question

I'm running a Django Web App - it's working locally, and was deploying successfully to Azure.

I'm now seeing the following error on the logstream:

Traceback (most recent call last):
2024-05-03T06:02:12.640875058Z   File "/home/site/wwwroot/antenv/lib/python3.11/site-packages/gunicorn/arbiter.py", line 609, in spawn_worker
2024-05-03T06:02:12.640878658Z     worker.init_process()
2024-05-03T06:02:12.640881958Z   File "/home/site/wwwroot/antenv/lib/python3.11/site-packages/gunicorn/workers/base.py", line 134, in init_process
2024-05-03T06:02:12.640885158Z     self.load_wsgi()
2024-05-03T06:02:12.640899358Z   File "/home/site/wwwroot/antenv/lib/python3.11/site-packages/gunicorn/workers/base.py", line 146, in load_wsgi
2024-05-03T06:02:12.640909259Z     self.wsgi = self.app.wsgi()
2024-05-03T06:02:12.640912259Z                 ^^^^^^^^^^^^^^^
2024-05-03T06:02:12.640915159Z   File "/home/site/wwwroot/antenv/lib/python3.11/site-packages/gunicorn/app/base.py", line 67, in wsgi
2024-05-03T06:02:12.640918359Z     self.callable = self.load()
2024-05-03T06:02:12.640921359Z                     ^^^^^^^^^^^
2024-05-03T06:02:12.640924259Z   File "/home/site/wwwroot/antenv/lib/python3.11/site-packages/gunicorn/app/wsgiapp.py", line 58, in load
2024-05-03T06:02:12.640927359Z     return self.load_wsgiapp()
2024-05-03T06:02:12.640930759Z            ^^^^^^^^^^^^^^^^^^^
2024-05-03T06:02:12.640933659Z   File "/home/site/wwwroot/antenv/lib/python3.11/site-packages/gunicorn/app/wsgiapp.py", line 48, in load_wsgiapp
2024-05-03T06:02:12.640936759Z     return util.import_app(self.app_uri)
2024-05-03T06:02:12.640939659Z            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2024-05-03T06:02:12.640942759Z   File "/home/site/wwwroot/antenv/lib/python3.11/site-packages/gunicorn/util.py", line 371, in import_app
2024-05-03T06:02:12.640945959Z     mod = importlib.import_module(module)
2024-05-03T06:02:12.640948959Z           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2024-05-03T06:02:12.640952059Z   File "/opt/python/3.11.8/lib/python3.11/importlib/__init__.py", line 126, in import_module
2024-05-03T06:02:12.640955059Z     return _bootstrap._gcd_import(name[level:], package, level)
2024-05-03T06:02:12.640957959Z            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2024-05-03T06:02:12.640960859Z   File "

Answer 1

Hello Ankit Kapur ,

Welcome to the Microsoft Q&A and thank you for posting your questions here.

Problem

Sequel to your questions, I understand that you are having error after your app was deployed successfully to Azure. Based on the error on the log stream provided, it indicated that the Gunicorn server running a Django web application on Azure is encountering an error during the initialization process of a worker. The error suggests a problem with loading the WSGI application. Potential causes include incorrect WSGI application configuration, missing dependencies, environment variable issues, Python version compatibility, or file path problems.

Scenario

A Django web application that was previously running successfully locally and deploying to Azure is now encountering errors on the Azure server. The application uses Gunicorn as the HTTP server and the error file is listed above.

Solution

This prescribed solution was based on the scenario given and your questions, while focusing on the problem statement.

Based on the error log you provided and my review. So as it's listed in the problem statement. I will provide here some guides to verify the incident and correct it by asking some guides questions and answers for identified components.

Q1: Is the WSGI_APPLICATION setting correctly configured in settings.py?

Ensure that the WSGI_APPLICATION setting in your Django settings.py file points to the correct WSGI application object. If you're using the default setup, it should be set as follows:

WSGI_APPLICATION = 'your_project_name.wsgi.application'

Replace 'your_project_name' with the actual name of your Django project.

Q2: Are all necessary dependencies installed on the Azure server, and are there any differences between the local environment and the server environment?

To know if dependencies are not install and to install it. follow this steps.

If your Django project uses a virtual environment, activate it by running the activation command from Azure CLI.

source /path/to/your/venv/bin/activate

Replace /path/to/your/venv with the actual path to your virtual environment directory.

You will need to search for Missing Dependencies, by using the pip list command to list all installed packages in your virtual environment.

pip list

Compare the list of installed packages with the dependencies required by your Django project, and you will have to identify any packages that are missing from the list. Once you have identify the missing dependencies. Then, Install any missing dependencies using pip using the sample code below.

pip install <package_name>

Replace <package_name> with the name of the missing package.

Q3: Are all required environment variables properly set in the Azure environment, and are any of them missing or misconfigured?

Verify that all necessary environment variables required for your Django application to run are properly set in the Azure environment. To check and set environment variables you will have to sign in to your Azure portal, then navigate to your Web App settings, check the configuration settings for environment variables and ensure that all required variables are set correctly.

You can use an advance edit to modify value as shown in the button above. However, ensure you provide information in the configuration file prior to this, as it is shown below:

The information above might be different from what you see here.

How to know the perfect environment variables settings for Django web app. You can use the below link for more details.

Setting up environment variables for a Django web app in Azure App Service involves a few step

Q4: Is the Python version used locally compatible with the version installed on the Azure server, and are there any differences that might cause issues?

Ensure compatibility between the Python version used locally and the one installed on the Azure server. To do this:

Check the Python version used locally by running:

python --version

Compare it with the Python version installed on the Azure server.

Finally

Q5: Are there any problems with file paths, such as incorrect references to modules or files within the Django project?

Investigate if there are any problems with file paths, such as incorrect module or file references.

References

Source: Setting up environment variables for a Django web app in Azure App Service involves a few step Accessed, 5/3/2024.

Accept Answer

I hope this is helpful! Do not hesitate to let me know if you have any other questions.

** Please don't forget to close up the thread here by upvoting and accept it as an answer if it is helpful ** so that others in the community facing similar issues can easily find the solution.

Best Regards,

Sina Salam NR.