Reverse DNS for Azure Cloud Services using Service Management API

The Azure Networking team has got the Reverse DNS feature out.This article https://azure.microsoft.com/en-us/updates/reverse-dns-support-for-azure-cloud-services/ which mentions that it can be done by SMAPI and PowerShell.

“Azure Cloud Services supports reverse DNS records for all PaaS and IaaS Cloud Services. This support is backwards compatible with all existing Cloud Services, is supported in the Service Management API and PowerShell, and is being offered at no additional cost.”

For details on the same and the PowerShell implementation please refer Stephen’s article https://azure.microsoft.com/blog/2014/07/21/announcing-reverse-dns-for-azure-cloud-services/. The current blog intends to detail on how to manage Reverse DNS records for your Cloud Services using the Azure Service Management API.

The existing Service Management APIs can be used for Creating and Updating Hosted Service with Reverse DNS names by adding an optional element.

ReverseDnsFqdn can only be specified if the version is 2014-06-01 or higher. Please refer https://msdn.microsoft.com/en-us/library/azure/gg592580.aspx for Service Management Versioning.

Create Cloud Service : https://msdn.microsoft.com/en-us/library/azure/gg441304.aspx

With Reverse DNS

 <?xml version="1.0" encoding="utf-8"?>
 <CreateHostedService xmlns="https://schemas.microsoft.com/windowsazure">
       <ServiceName>service-name</ServiceName>
       <Label>base64-encoded-service-label</Label>
       <Description>description</Description>
       <Location>location</Location>
       <AffinityGroup>affinity-group</AffinityGroup>
       <ExtendedProperties>
           <ExtendedProperty>
               <Name>property-name</Name>
             <Value>property-value</Value>
         </ExtendedProperty>
     </ExtendedProperties>
 <ReverseDnsFqdn>reverse-dns-fqdn</ReverseDnsFqdn>
 </CreateHostedService>

Update An Existing Cloud Service : https://msdn.microsoft.com/en-us/library/azure/gg441303.aspx

Currently

 <?xml version="1.0" encoding="utf-8"?>
 <UpdateHostedService xmlns="https://schemas.microsoft.com/windowsazure">
   <Label>base64-encoded-label-of-cloud-service</Label>
   <Description>description-of-cloud-service</Description>
   <ExtendedProperties>
     <ExtendedProperty>
       <Name>name-of-property</Name>
       <Value>value-of-property</Value>
     </ExtendedProperty>
   </ExtendedProperties>
   <GuestAgentType>type-of-guest-agent</GuestAgentType
 </UpdateHostedService>

With Reverse DNS

 <?xml version="1.0" encoding="utf-8"?>
 <UpdateHostedService xmlns="https://schemas.microsoft.com/windowsazure">
       <Label>base64-encoded-service-label</Label>
       <Description>description</Description>
       <ExtendedProperties>
           <ExtendedProperty>
               <Name>property-name</Name>
             <Value>property-value</Value>
         </ExtendedProperty>
             <GuestAgentType>ProdGA|TestGA</GuestAgentType>
     </ExtendedProperties>
 <ReverseDnsFqdn>reverse-dns-fqdn</ReverseDnsFqdn>
 </UpdateHostedService>

Angshuman Nayak, Cloud Integration Engineering