Quickly download ALL Logs from Azure Web Apps (App Service)

Download Logs from Azure Web Apps

Azure App Service provides multiple ways to access and download logs for troubleshooting and monitoring. In this blog, we'll explore different methods to retrieve log files from an Azure Web App (also known as Azure Web App Service).

Method 1: Download Logs via Kudu Console (Browser-Based)

Kudu is the advanced console for Azure App Service, which allows you to browse and download logs easily.

Steps:

1. Open your Kudu console by navigating to: https://<your-app-name>.scm.azurewebsites.net Example: https://myweb.com.azurewebsites.net
2. Click on Environment in the top navigation bar.
3. Scroll down to the LogFiles directory.
4. Click on the log file you want to download.
5. Right-click and select Save As to download the file.

Method 2: Direct URL Access (API VFS Endpoint)

Azure App Service logs are stored in a virtual file system (VFS). You can access them directly through a URL.

Steps:

1. Open your browser and use the following URL format: https://<your-app-name>.scm.azurewebsites.net/api/vfs/LogFiles/<log-filename> Example: https://myweb.azurewebsites.net/api/vfs/LogFiles/2027_02_27_ln007_default_docker.log
2. If the file opens in the browser, press Ctrl + S to save it.

Method 3: Using PowerShell or Curl to Download Logs

You can also use PowerShell or cURL to programmatically download logs.

PowerShell Command:

Invoke-WebRequest -Uri "https://myweb.scm.azurewebsites.net/api/vfs/LogFiles/2027_02_27_ln07B_default_docker.log" -OutFile "C:\logs\docker.log"
        

Curl Command (Linux/macOS/Windows with Curl Installed):

curl -O "https://myweb.azurewebsites.net/api/vfs/LogFiles/2027_02_27_ln1s07B_default_docker.log"
        

Method 4: Download All Logs as a ZIP File

If you need to download multiple logs at once, you can retrieve them as a ZIP archive.

Steps:

1. Open your browser and navigate to: https://<your-app-name>.scm.azurewebsites.net/api/zip/LogFiles/ Example: https://myweb.azurewebsites.net/api/zip/LogFiles/
2. This will download a LogFiles.zip file containing all log files.

Conclusion

Azure App Service provides multiple ways to download logs, including the Kudu console, direct URL access, PowerShell, and batch downloading via ZIP. Depending on your needs, you can use any of these methods to efficiently retrieve and analyze your logs for debugging and monitoring purposes.

Let us know in the comments which method works best for you or if you have any questions!