Azure Web App Deployment: Worker Process Failed to Start

Johanan Lee Mahendran 0

Hi,

I have cloned https://github.com/microsoft/sample-app-aoai-chatGPT to create my own Azure Web App. I am using the Dev Environment provided.

However, whenever I try to deploy my app, it builds but unable to start the app. I have been trying to deploy it with the following script, but I get a worker process failed to start error.

az
 
--name
--startup-file

az
--resource-group
--name
--settings
WEBSITE_WEBDEPLOY_USE_SCM=
SCM_DO_BUILD_DURING_DEPLOYMENT=

# 4. Deploy your code
az
--runtime
--sku
--name
--resource-group
--plan
--location

A screenshot of the error:

I would appreciate any help with regards to this as I have been stuck on it for a while now.

Thanks!

Johana

Sam Cogan 10,752 Reputation points MVP

2024-11-19T08:57:07.7533333+00:00

What do the runtime logs say?

Johanan Lee Mahendran 0

Here is one from a previous run. Admittedly, i do not understand it completely.

 
  {
    "machineName": "pl0sdlwk0007PM_default",
    "lastUpdated": "2024-11-18T02:35:35.6268735Z",
    "size": 13844,
    "href": "https://ai-chatbot-cf-free.scm.azurewebsites.net/api/vfs/LogFiles/2024_11_18_pl0sdlwk0007PM_default_docker.log",
    "path": "/home/LogFiles/2024_11_18_pl0sdlwk0007PM_default_docker.log"
  },
  {
    "machineName": "pl0sdlwk0007PM_default_scm",
    "lastUpdated": "2024-11-16T16:38:35.8762069Z",
    "size": 81328,
    "href": "https://ai-chatbot-cf-free.scm.azurewebsites.net/api/vfs/LogFiles/2024_11_16_pl0sdlwk0007PM_default_scm_docker.log",
    "path": "/home/LogFiles/2024_11_16_pl0sdlwk0007PM_default_scm_docker.log"
  },
  {
    "machineName": "pl0sdlwk0007PM",
    "lastUpdated": "2024-11-18T02:35:35.6268735Z",
    "size": 8937,
    "href": "https://ai-chatbot-cf-free.scm.azurewebsites.net/api/vfs/LogFiles/2024_11_18_pl0sdlwk0007PM_docker.log",
    "path": "/home/LogFiles/2024_11_18_pl0sdlwk0007PM_docker.log"
  }
]
`

Johanan Lee Mahendran 0

Here is one from a previous run. Admittedly, I do not fully understand it.

[
  {
    "machineName": "pl0sdlwk0007PM_default",
    "lastUpdated": "2024-11-18T02:35:35.6268735Z",
    "size": 13844,
    "href": "https://ai-chatbot-cf-free.scm.azurewebsites.net/api/vfs/LogFiles/2024_11_18_pl0sdlwk0007PM_default_docker.log",
    "path": "/home/LogFiles/2024_11_18_pl0sdlwk0007PM_default_docker.log"
  },
  {
    "machineName": "pl0sdlwk0007PM_default_scm",
    "lastUpdated": "2024-11-16T16:38:35.8762069Z",
    "size": 81328,
    "href": "https://ai-chatbot-cf-free.scm.azurewebsites.net/api/vfs/LogFiles/2024_11_16_pl0sdlwk0007PM_default_scm_docker.log",
    "path": "/home/LogFiles/2024_11_16_pl0sdlwk0007PM_default_scm_docker.log"
  },
  {
    "machineName": "pl0sdlwk0007PM",
    "lastUpdated": "2024-11-18T02:35:35.6268735Z",
    "size": 8937,
    "href": "https://ai-chatbot-cf-free.scm.azurewebsites.net/api/vfs/LogFiles/2024_11_18_pl0sdlwk0007PM_docker.log",
    "path": "/home/LogFiles/2024_11_18_pl0sdlwk0007PM_docker.log"
  }
]
`

VenkateshDodda-MSFT 21,991 Reputation points Microsoft Employee

2024-11-22T04:24:49.83+00:00

@Johanan Lee Mahendran Following up to see if you have a chance to check my previous response and helped. Do let me know if you have any questions on this.

1 answer

VenkateshDodda-MSFT 21,991 Reputation points Microsoft Employee

2024-11-19T12:56:41.7066667+00:00
@Johanan Lee Mahendran Thanks for sharing more information.

Based on the app service resource names shared earlier, i see that this app service "ai-chatbot-cf-free" is on free tier but in the github repo tutorial it is suggested to use B1(Basic) tier. Can you try scale out the app service plan to higher tier and check.

Could you share more details to understand the issue better.

Also were able to run the site in locally without any issues?

Does the deployment of your application to app service is successful? and are you facing this issue while request the URL of the website?

Can you review the container logs files (<WorkerName>_default_docker.log,<WorkerName>_docker.log) using the above shared href links to know more about why the application is failing.

Try troubleshooting the issue by using various detectors under Diagnose and Solve problems.
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Johanan Lee Mahendran 0 Reputation points

2024-11-23T04:02:35.77+00:00

Apologies for the delayed reply. I have narrowed down the issue to a "KeyError: 'PROVIDE_AUTOMATIC_OPTIONS'" that is preventing the app from starting up.

This is a recent bug that cropped up last week and I will be looking a the suggested bug fixes from these reports.
https://github.com/microsoft/sample-app-aoai-chatGPT/issues/1173
https://github.com/microsoft/sample-app-aoai-chatGPT/pull/1174
https://github.com/microsoft/sample-app-aoai-chatGPT/issues/1176

To answer your questions:

I have been able to run the site locally but not on Github codespaces. Deploying from the local repository still produces the bug.

The deployment is successful but the app fails to start.

VenkateshDodda-MSFT 21,991 Reputation points Microsoft Employee

2024-11-25T11:18:15.14+00:00

@Johanan Lee Mahendran Thanks for your response and Glad to know that you are able to solve your problem.

I have converted my comment to answer feel free to accept as answer for the benefit of community members.
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