Azure Functions Deployment Issue - Functions Not Appearing after deployment

Question

Azure Functions Deployment Issue - Functions Not Appearing after deployment

Jakub Czaplicki 20

Hello Everyone,

We're experiencing an issue with our Azure Functions deployment. After deploying our Python-based Azure Functions app, the functions are not appearing in the Azure Portal dashboard, despite successful deployment logs. The initial version of the code (a simple api returning empty data) was deployed successfully, after code changes (connecting to a db), the deployment seems to fail, and I cannot find any place that would tell me what's happening.

How can I debug this issue? Where can I see if an issue if with python deps, missing file , bad connection, missing env.var or anything else ?

Thanks,

Jakub

Praveen Kumar Gudipudi 1,875 Reputation points Microsoft External Staff Moderator

2025-06-09T01:18:25.1266667+00:00
Hello Jakub Czaplicki,

Please confirm on how you are deploying the function app and functions?

Here are a few steps you can take to debug the situation:

Check Your Deployment Environment: Ensure that your deployment is running on an Ubuntu agent, as it's crucial for correctly restoring packages during the build step.

Validate the pip install Command: If your function app isn't at the root of the source repository, make sure your pip install command is pointing to the correct location. You need to specify the installation target accurately, and remember that file paths are case-sensitive. For example:

pip install --target="./YourFunctionApp/.python_packages/lib/site-packages" -r ./YourFunctionApp/requirements.txt

Deployment Package Check: Ensure your deployment package is correctly being loaded into the /home/site/wwwroot directory. If you’re using Azure Pipelines, the ArchiveFiles task can help with this.

Connection Strings: If your function connects to Azure Storage (especially in the case of triggers/bindings), ensure that your local.settings.json has the correct AzureWebJobsStorage connection string set.

Check for Errors in the Azure Portal: Go to the Azure Portal and look under the "Function App" -> "Logs" section for any errors that could provide more context on what's failing.

Testing Locally: Sometimes it’s useful to run the function locally using a tool like Azure Functions Core Tools to see if it triggers any errors that might not appear during deployment. Please check above steps and let us know with an update.
Praveen Kumar Gudipudi 1,875 Reputation points Microsoft External Staff Moderator

2025-06-10T06:59:43.2833333+00:00

Hello Jakub Czaplicki,

Please share me the error details to proceed further on this.
Praveen Kumar Gudipudi 1,875 Reputation points Microsoft External Staff Moderator

2025-06-12T03:54:56.3766667+00:00

Hello Jakub Czaplicki,

Following up to see if you have chance to check my previous response and please let us know with an update to assist you further on this.
Jakub Czaplicki 20 Reputation points

2025-06-12T10:36:19.1933333+00:00

Hi Praveen, Thank you for your response. Give me 1 more day please. I've been working on sth else in the meantime. I'll come back to you soon.
Praveen Kumar Gudipudi 1,875 Reputation points Microsoft External Staff Moderator

2025-06-16T09:11:32.83+00:00

Hello Jakub Czaplicki,

Do we have any update?
Praveen Kumar Gudipudi 1,875 Reputation points Microsoft External Staff Moderator

2025-06-16T10:17:31.7733333+00:00

Hello Jakub Czaplicki,

Could you please provide the requested details in the private chat?

Here is the reference link on How to access & Data Privacy policy of private messages in Microsoft QnA.

Accepted answer

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Your answer

Praveen Kumar Gudipudi 1,875 Reputation points Microsoft External Staff Moderator

2025-06-09T01:18:25.1266667+00:00

Hello Jakub Czaplicki,

Please confirm on how you are deploying the function app and functions?

Here are a few steps you can take to debug the situation:

Check Your Deployment Environment: Ensure that your deployment is running on an Ubuntu agent, as it's crucial for correctly restoring packages during the build step.

Validate the pip install Command: If your function app isn't at the root of the source repository, make sure your pip install command is pointing to the correct location. You need to specify the installation target accurately, and remember that file paths are case-sensitive. For example:

pip install --target="./YourFunctionApp/.python_packages/lib/site-packages" -r ./YourFunctionApp/requirements.txt

Deployment Package Check: Ensure your deployment package is correctly being loaded into the /home/site/wwwroot directory. If you’re using Azure Pipelines, the ArchiveFiles task can help with this.

Connection Strings: If your function connects to Azure Storage (especially in the case of triggers/bindings), ensure that your local.settings.json has the correct AzureWebJobsStorage connection string set.

Check for Errors in the Azure Portal: Go to the Azure Portal and look under the "Function App" -> "Logs" section for any errors that could provide more context on what's failing.

Testing Locally: Sometimes it’s useful to run the function locally using a tool like Azure Functions Core Tools to see if it triggers any errors that might not appear during deployment. Please check above steps and let us know with an update.
Praveen Kumar Gudipudi 1,875 Reputation points Microsoft External Staff Moderator

2025-06-10T06:59:43.2833333+00:00

Hello Jakub Czaplicki,

Please share me the error details to proceed further on this.
Praveen Kumar Gudipudi 1,875 Reputation points Microsoft External Staff Moderator

2025-06-12T03:54:56.3766667+00:00

Hello Jakub Czaplicki,

Following up to see if you have chance to check my previous response and please let us know with an update to assist you further on this.
Jakub Czaplicki 20 Reputation points

2025-06-12T10:36:19.1933333+00:00

Hi Praveen, Thank you for your response. Give me 1 more day please. I've been working on sth else in the meantime. I'll come back to you soon.
Praveen Kumar Gudipudi 1,875 Reputation points Microsoft External Staff Moderator

2025-06-16T09:11:32.83+00:00

Hello Jakub Czaplicki,

Do we have any update?
Praveen Kumar Gudipudi 1,875 Reputation points Microsoft External Staff Moderator

2025-06-16T10:17:31.7733333+00:00

Hello Jakub Czaplicki,

Could you please provide the requested details in the private chat?

Here is the reference link on How to access & Data Privacy policy of private messages in Microsoft QnA.

Answer 1

Hello @Jakub Czaplicki,

Thanks for sharing answer with us.

you did "az functionapp deployment source config-zip ..", and then only "az functionapp config appsettings .."

But after configuring "func azure functionapp publish $FUNCTION_APP --build-remote true --python", which seems to be be the way to deploy slightly more complex code.

If this answer was helpful, please click "Accept the answer" and mark Yes, as this can help other community members.

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If you have any other questions or are still experiencing issues, feel free to ask in the "comments" section, and I'd be happy to help.

Answer 2

Jakub Czaplicki 20

Hi Praveen, Yes!

So it turns out that I was doing the deployment in a wrong way.
I did "az functionapp deployment source config-zip ..", and then only "az functionapp config appsettings .."

What I missed was "func azure functionapp publish $FUNCTION_APP --build-remote true --python", which seems to be be the way to deploy slightly more complex code.

Thanks for your help!

Jakub

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Azure Functions Deployment Issue - Functions Not Appearing after deployment

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