"HTTPSConnectionPool Max retries exceeded with url error" when deploying azure function app.

Mustafa Hussain 0

I am trying to deploy functionapp using the CLI by running the command

az functionapp deployment source config-zip -g Development -n <function-name> --src <output-directory.zip>

but keep getting this error

HTTPSConnectionPool(host='<function-name>.scm.azurewebsites.net', port=443): Max retries exceeded with url: /api/zipdeploy?isAsync=true (Caused by SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:2396)')))

Certificate verification failed. This typically happens when using Azure CLI behind a proxy that intercepts traffic with a self-signed certificate. Please add this certificate to the trusted CA bundle. More info: https://docs.microsoft.com/cli/azure/use-cli-effectively#work-behind-a-proxy.

I am not using a proxy server and not sure why I am getting this error. Any ideas would be greatly appreciated.

navba-MSFT 19,655 Reputation points Microsoft Employee

2023-07-04T05:23:33.75+00:00
@Mustafa Hussain Welcome to Microsoft Q&A Forum, Thank you for posting your query here!

I understand that the Az cli function app deployment command is failing with the error HTTPSConnectionPool Max retries exceeded with url error.

Please follow the below action plans and check if that helps:

Could you please check with the az webapp deployment command instead and see if that helps ?

Please try the other ways of Function App deployment and check if that helps.

Visual Studio Code publish

Visual Studio publish

Core Tools publish

Could you please test the deployment from a different machine (which is completely in different network) and test again?

4.You could try setting the env variable (set AZURE_CLI_DISABLE_CONNECTION_VERIFICATION=1) and then re-launch your command prompt and test the deployment again.

5.If none of the above action plans helps, try following the steps mentioned here.

6.Since you have confirmed there are no proxy in your environment. Could you please check if there are any firewalls within your corporate network ?

If you still face the same issue after following the above plan, please let me know. I would be happy to assist you further.
navba-MSFT 19,655 Reputation points Microsoft Employee

2023-07-06T05:12:52.21+00:00

@Mustafa Hussain Just following up to check if the below answer helped. And, if you have any further query do let us know. I would be happy to help.
Mustafa Hussain 0 Reputation points

2023-07-07T15:03:28.1533333+00:00

Hi Navba,

Thanks for sharing the above information. After upgrading the function app service plan to premium. It worked.
navba-MSFT 19,655 Reputation points Microsoft Employee

2023-07-10T05:00:53.6233333+00:00

@Mustafa Hussain Thanks for the update. I am glad that the issue is resolved. Please feel free to reach out to the Microsoft Q&A forum in future, for any technical issues. We would be happy to help.

1 answer

晓月陈 0 Reputation points

2023-07-21T05:24:31.4566667+00:00

I was facing the similar error . It turns out “Az upgrade” fixing this issue. the previous version of Az Cli is "2.30.0".Refer this https://github.com/Azure/azure-cli/issues/20728
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"HTTPSConnectionPool Max retries exceeded with url error" when deploying azure function app.

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