Backup DNS zone using Azure Functions

Question

Backup DNS zone using Azure Functions

Roland Barreto 66

I have this scenario.

I have a dns zone that I want to backup in a Azure Blob Storage.

These are the commands to do it manually.

Export the DNS zone file using this Azure CLI command:

az network dns zone export -g myresourcegroup -n contoso.com -f /path/to/zonefile.txt

Upload the exported DNS zone file to Azure blob storage using this Azure CLI command:

az storage blob upload -f /path/to/file -c MyContainer -n MyBlob --account-name xxxx --account-key xxxx

I'm not a dev but I have asigned this job, and I have to do it.

Is it possible to automate this into an Azure Function? How?

3 answers

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Answer 1

Carlos Solís Salazar 18,191 MVP Volunteer Moderator

Hi anonymous user

Thank you for asking this question on the **Microsoft Q&A Platform. **

The azure function does not support AZ CLI, here you can check the Supported languages in Azure Functions

I recommend you execute your script with PowerShell (Get-AzDnsZone)

Running it with PowerShell will allow you to execute it in a runbook in an Automation Account

Hope this helps,
Carlos Solís Salazar

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Carlos Solís Salazar 18,191 Reputation points MVP Volunteer Moderator

2022-06-27T12:20:36.9+00:00

Hi anonymous user

How did it go?

You can Accept Answer(https://learn.microsoft.com/en-us/answers/support/accepted-answers) and Upvote, if the above response helped answer your query, others visiting the forum with the same query might get help.
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Answer 2

Roland Barreto 66

Thanks for your answer. It was very heplful. I did this. ![213994-image.png][1] This is a great result. I got the record sets of the dns zone. this is the output. ![213995-image.png][2] Now do you know how to get this output from this runbook in a file .txt? I need to get the txt to upload it to a storage account. [1]: /api/attachments/213994-image.png?platform=QnA [2]: /api/attachments/213995-image.png?platform=QnA

Answer 3

Luke Murray 11,436 MVP Volunteer Moderator

You could try:

Get-AzDNSRecordSet -ResourceGroupName 'dnsreg' -ZoneName "geeknica.com" | Out-File 'DNSRecord.txt'

This post is a good start:

https://savilltech.com/2018/03/25/writing-to-files-with-azure-automation/

Another option to consider is using Azure Bicep to control your DNS zones, so your backup is in code already - https://luke.geek.nz/azure/azure-public-dns-as-code/

Roland Barreto 66 Reputation points

2022-06-23T23:40:29.313+00:00

Thanks for your support. I did as you mention and it worked! I show you. ![214439-image.png][1] This is awesome, but the zone does not storage as when you execute the az network dns zone export. The thing is that I got the info in a txt but it can´t be import it. I been trying to execute Azure Cli code but it doesn´t work. Do you know how integrate Azure Cli commands? [1]: /api/attachments/214439-image.png?platform=QnA
Luke Murray 11,436 Reputation points MVP Volunteer Moderator

2022-06-24T02:44:21.31+00:00
The default Azure Automation environment doesn't support Azure CLI commands - if you can't find the right PowerShell cmdlet that aligns to the Azure CLI command - you could set up a Hybrid Worker environment that will run the scripts on your own server with Azure CLI installed, you could then use that in your scripts.

https://learn.microsoft.com/en-us/azure/automation/automation-hybrid-runbook-worker

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Backup DNS zone using Azure Functions

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