Configure apps - Azure App Service (2024)

1. In the Azure portal, search for and select App Services, and then select your app.

   

2. In the app's left menu, select Environment variables > App settings.

   

   By default, values for app settings are hidden in the portal for security. To see a hidden value of an app setting, select its Value field. To see the hidden values of all app settings, select the Show values button.

3. To add a new app setting, select Add. To edit a setting, click the setting.

4. In the dialog, you can stick the setting to the current slot.

   See Also

   Troubleshoot outbound connections - Azure portal - Azure Network WatcherAzure Monitor vs Azure Advisor: Key Differences & SimilaritiesAdd Azure Monitor | Online Help Site24x7How to Create a Custom Azure IAM Role | Skeddly Help Center

   Note

   In a default Linux app service or a custom Linux container, any nested JSON key structure in the app setting name like ApplicationInsights:InstrumentationKey needs to be configured in App Service as ApplicationInsights__InstrumentationKey for the key name. In other words, any : should be replaced by __ (double underscore). Any periods in the app setting name will be replaced with a _ (single underscore).

5. When finished, select Apply. Don't forget to select Apply back in the Environment variables page.

Select the Advanced edit button. Edit the settings in the text area. When finished, select OK. Don't forget to select Apply back in the Environment variables page.

App settings have the following JSON formatting:

[ { "name": "<key-1>", "value": "<value-1>", "slotSetting": false }, { "name": "<key-2>", "value": "<value-2>", "slotSetting": false }, ...]

1. In the Azure portal, search for and select App Services, and then select your app.

   See Also

   Enable VM insights by using Azure Policy - Azure Monitor

   

2. In the app's left menu, select Environment variables > Connection strings.

   

   By default, values for connection strings are hidden in the portal for security. To see a hidden value of a connection string, select its Value field. To see the hidden values of all connection strings, select the Show value button.

3. To add a new connection string, select Add. To edit a connection string, select the connection string.

4. In the dialog, you can stick the connection string to the current slot.

5. When finished, select Apply. Don't forget to select Apply back in the Environment variables page.

Select the Advanced edit button. Edit the connection strings in the text area. When finished, select Apply. Don't forget to select Apply back in the Environment variables page.

Connection strings have the following JSON formatting:

[ { "name": "name-1", "value": "conn-string-1", "type": "SQLServer", "slotSetting": false }, { "name": "name-2", "value": "conn-string-2", "type": "PostgreSQL", "slotSetting": false }, ...]

In the Azure portal, search for and select App Services, and then select your app. In the app's left menu, select Configuration > General settings.

Here, you can configure some common settings for the app. Some settings require you to scale up to higher pricing tiers.

• Stack settings: The software stack to run the app, including the language and SDK versions.

  For Linux apps, you can select the language runtime version and set an optional Startup command or a startup command file.

  

• Platform settings: Lets you configure settings for the hosting platform, including:

  • Platform bitness: 32-bit or 64-bit. For Windows apps only.
  • FTP state: Allow only FTPS or disable FTP altogether.
  • HTTP version: Set to 2.0 to enable support for HTTPS/2 protocol.

  Note

  Most modern browsers support HTTP/2 protocol over TLS only, while non-encrypted traffic continues to use HTTP/1.1. To ensure that client browsers connect to your app with HTTP/2, secure your custom DNS name. For more information, see Secure a custom DNS name with a TLS/SSL binding in Azure App Service.

  • Web sockets: For ASP.NET SignalR or socket.io, for example.

  • Always On: Keeps the app loaded even when there's no traffic. When Always On isn't turned on (default), the app is unloaded after 20 minutes without any incoming requests. The unloaded app can cause high latency for new requests because of its warm-up time. When Always On is turned on, the front-end load balancer sends a GET request to the application root every five minutes. The continuous ping prevents the app from being unloaded.

    Always On is required for continuous WebJobs or for WebJobs that are triggered using a CRON expression.

  • ARR affinity: In a multi-instance deployment, ensure that the client is routed to the same instance for the life of the session. You can set this option to Off for stateless applications.

  • HTTPS Only: When enabled, all HTTP traffic is redirected to HTTPS.

  • Minimum TLS version: Select the minimum TLS encryption version required by your app.

• Debugging: Enable remote debugging for ASP.NET, ASP.NET Core, or Node.js apps. This option turns off automatically after 48 hours.

• Incoming client certificates: require client certificates in mutual authentication.

1. In the Azure portal, search for and select App Services, and then select your app.

2. In the app's left menu, select Configuration > Default documents.

   

3. To add a default document, select New document. To remove a default document, select Delete to its right.

1. In the Azure portal, search for and select App Services, and then select your app.

2. In the app's left menu, select Configuration > Path mappings

3. Select New virtual application or directory.

   • To map a virtual directory to a physical path, leave the Directory check box selected. Specify the virtual directory and the corresponding relative (physical) path to the website root (D:\home).
   • To mark a virtual directory as a web application, clear the Directory check box.

   

4. Select OK. Don't forget to select Save in the Configuration page.