App Service Environment Variables (CI/CD Github Actions)

Cloud Texavie 71

Hi,

I am deploying a nodejs application on AppService with a CI/CD pipeline (Github Actions). Based on my understanding, the environment variables (e.g process.env.VARIABLE) need to be set under the Application Settings on the Azure Portal for App Service:

However, at runtime the environment variables are unset (i.e process.env.IoTHubConnectionString is undefined):

Is there any step that I am missing, for example, some configs in the github actions yaml file that I need to add?

Thanks

SnehaAgrawal-MSFT 22,156 Reputation points

2021-03-17T09:55:30.067+00:00

Thanks for asking question! If I have understood right you want to configure Azure App service Settings for GitHub Action. If so, for Configuring GitHub Secrets with Azure Credentials, App Settings and Connection Strings: using any sensitive data/secrets like Azure Service Principal, App Settings or Connection Strings within an Action, add them as secrets in the GitHub repository and then use them in the workflow. If you do not have sensitive information in the app-settings -json and connection-strings-json and do not want to set it as secret, set mask-inputs as false in the workflow.

Check : Sample workflow to configure settings on an Azure Web App

Refer to this article: GitHub Action for configuring Azure App service Settings might be helpful. 1

Please let us know if any further question or issue remains.
SnehaAgrawal-MSFT 22,156 Reputation points

2021-03-17T09:57:42.887+00:00

Also, Check this blog on Using Github Actions with Azure App Services for Web Apps

Disclaimer: This response contains a reference to a third-party World Wide Web site. Microsoft is providing this information as a convenience to you.
Cloud Texavie 71 Reputation points

2021-03-17T19:06:54.577+00:00

Thank you very much for this answer. I tried what you recommended and added my environment variables as secrets on Github, then included them in the yaml file:

However, I still have the exact same problem, process.env.IoTHubConnectionString is unset and the web app gives an application error.
Cloud Texavie 71 Reputation points

2021-03-17T19:58:10.593+00:00

As a followup, I also tried deploying the nodejs web app with Local Git deployment instead of github actions and defined the application settings using:

az webapp config appsettings set -n <your web app name> -g <your resource group name> --settings EventHubConsumerGroup=<your consumer group> IotHubConnectionString="<your IoT hub connection string>"

I created the app service plan and web app from the Azure Portal, then followed the steps from this tutorial for deployment.

I still had the exact same problem (environment variables not defined)
SnehaAgrawal-MSFT 22,156 Reputation points

2021-03-18T13:42:40.793+00:00

Thanks for reply. Just to confirm if you have updated the environment variables in the server.js file?

Check below link:
https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-live-data-visualization-in-web-apps#configure-environment-variables-for-the-web-app
Cloud Texavie 71 Reputation points

2021-03-18T16:59:58.867+00:00

Hi,
I am not sure what you are refering to. server.js grabs the environment variables from process.env; I have not modified the code. I have set the environment variables in the Azure Application Settings, but at runtime, those variables are not defined

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App Service Environment Variables (CI/CD Github Actions)

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