TagAzure AD

WVD Management Tool – Cross Tenant Access Fix

With the announcement of WVD (Windows Virtual Desktop) moving into GA today I thought I’d spin my lab back up again and try and get the WVD Management Web App Tool working.

My last attempt a few weekends ago was unsuccessful and I didn’t have any time to carry on troubleshooting so I deleted the Resource Group and forgot about it the long To-Do list for another day.

So this evening as the working day was nearing it’s end, I headed back into the Azure portal and attempted to deploy the WVD Management Tool.

My WVD Setup – Azure AD, Subscriptions & Resources

Issue #1 – Azure Automation Job Failing

This was a pretty simple one in the end. The Azure AD user’s password I was giving in the ARM template parameters had expired.

This user needs to be an Azure AD Global Administrator and have the RBAC permissions on the Subscription you want to deploy the WVD Management Tool too.

Issue #2 – My Subscription & Azure AD Tenant Aren’t Linked

Now most people will have a single Azure AD Tenant and all their users synced to this and also all of their Azure Subscriptions linked to the same tenant.

However I do not, for a number of reasons, mainly for giving me the opportunity to test a lot of the more complicated deployments.

See the above diagram in this post for my setup explained; hopefully!

So when the WVD Management Web App Tool deploys I have to put it in my subscriptions linked to the ‘jackjacktraceyco.onmicrosoft.com’ Azure AD Tenant.

However all of my WVD authentication is sourced from my ‘jtlab.cloud’ Azure AD Tenant as I use Azure AD Connect to sync my users & groups from the ‘LAB-DC-01’ Active Directory Domain Controller.

Once I figured out Issue #1 and the WVD Management Tool was successfully deployed I tried to login to it with my WVD Tenant Admin User (in the ‘jtlab.cloud’ tenant) and got the below error:

As you can, sort of, see it is saying that the Application with the ID of XXXXXXXX cannot be found in the directory ‘jtlab.cloud’ (you’ll have to trust me on this one).

Now this isn’t really an issue caused by an error in the ARM template provided by Microsoft, its actually done exactly as I’ve told it too. The issue is my setup!

However this setup is likely to be fairly common, especially in a partner world or a provider doing a DaaS (Desktop-as-a-Service) offering.

The Fix

Luckily this is quite an easy one.

  1. Login to the Azure Active Directory Management Portal as a user with the Global Administrator role into the Azure AD Tenant where your Subscriptions and therefore WVD Management Tool is deployed – https://aad.portal.azure.com
  2. Select the ‘Azure Active Directory’ blade > then ‘App Registrations’ > then search for the Application ID referenced in the error or search for ‘wvd’.
  3. Select the App Registration > then select ‘Authentication’ > then scroll to the bottom of the show blade on the right until you get to the ‘Supported account types’ section. Change the radio button select to the option called: ‘Accounts in any organizational directory (Any Azure AD directory – Multitenant)’
  4. Click Save

And that is all you need to do to fix the login. This now allows other Azure AD tenants to sign into the WVD Management Tool that you created. Which is exactly what I need for my setup!

Hope this helps some of you out there!

 

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Azure Subscription Migrations

** UPDATE – 04/09/2019 – Version 6 of the Azure Resource Migration Support Tool released – Click on link below to get a copy of it or here. **

Recently I have had an abundance of requests from our sales teams & account managers regarding Azure Subscription migrations. Whether it be from PAYG (Pay-As-You-Go) to CSP, EA to CSP, CSP to PAYG or just PAYG to PAYG.

Whatever the source and destination subscription model is, the answer I give is the same!

Every migration for each customer is going to be different 99% of the time and in the majority of cases is not as simple as the click of the migrate button from within the portal and away you go. Perhaps one day it will be; I’ll be a very happy man that day for sure!

So in this post I will share with you how I approach these requests and a tool I have developed to help speed the assessment process up significantly.

Please note this article will focus on subscription level migrations, however the tool accommodates for Resource Group level migrations as well!

Before you even think about migrating…

There are a few key points of information that you need to gather/understand when starting with one of these requests.

  1. Why does the customer want to migrate subscriptions?
  2. What subscription model are the source and destination subscriptions using; or going to use?
    1. PAYG
    2. CSP
    3. EA
    4. Other… (MSDN, BizSpark etc…)
  3. An export of all resources from all of the source subscriptions.
  4. Timescales for migration completion.

All of these questions are important to have an answer for before beginning your approach to the migration.

Questions 1 and 4 are more to help understand the “why” from the customer and to set expectations early on timescales. Because we all know sometimes timescale expectations can be unrealistic and it’s important for us to reset them accordingly if so.

Questions 2 and 3 will help define some technical paths you will need to follow and various limitations that each combination may have.

Subscription Migration Support Matrix

I feel know is a good time to lay out all of the combinations for subscription migrations and what initial approach should be taken.

Apologies for the length of this table but there are a lot of possible different combinations!

Source
Subscription
Model
Destination
Subscription
Model
Migration
Supported
Migration
Approach
Notes
PAYGEAYesJust a back-end Azure billing change.
No downtime
PAYGCSPYesResources must be migrated between subscriptions.
Possible downtime & limitations.
Check services are available in CSP.
No classic (ASM) resource supported in CSP.
PAYGMSDN/BizSparkYesResources must be migrated between subscriptions.
Possible downtime & limitations.
PAYGPAYGYesResources must be migrated between subscriptions.
Possible downtime & limitations.
EAPAYGYesResources must be migrated between subscriptions.
Possible downtime & limitations.
EACSPYesResources must be migrated between subscriptions.
Possible downtime & limitations.
Check services are available in CSP.
No classic (ASM) resource supported in CSP.
EAMSDN/BizSparkYesResources must be migrated between subscriptions.
Possible downtime & limitations.
EAEAYes/No/Not NormalIf different Azure AD Tenant same as EA to PAYG.
If same Azure AD Tenant, why are you migrating as you can just change subscription owner instead.
N.B. this not a migration I have ever come across to date.
MSDN/BizSparkEAYesJust a back-end Azure billing change.
No downtime
MSDN/BizSparkPAYGYesResources must be migrated between subscriptions.
Possible downtime & limitations.
MSDN/BizSparkCSPYesResources must be migrated between subscriptions.
Possible downtime & limitations.
MSDN/BizSparkMSDN/BizSparkYesResources must be migrated between subscriptions.
Possible downtime & limitations.
CSPMSDN/BizSparkYes/Not NormalResources must be migrated between subscriptions.
Possible downtime & limitations.
CSPEAYes/No/Not NormalBelieve this would have to be treated as if it were PAYG to PAYG as CSP subscription has some back-end billing differences. Therefore doubtful that EA subscription import/billing change process will not work.
Resources must be migrated between subscriptions.
Possible downtime & limitations.
CSPPAYGYesResources must be migrated between subscriptions.
Possible downtime & limitations.
CSPCSPYesBack end billing change but must be requested in certain way and currently no automated way to do this.
See: https://docs.microsoft.com/en-us/azure/cloud-solution-provider/customer-management/switch-subscription-to-different-csp-partner

Assessing Resource Migrations Between Subscriptions

As you have seen in the table above, the majority of migrations require you to migrate the actual Azure resources between subscriptions. As mentioned before and in the table rows, this sometime incurs downtime and also there are various limitations per Azure resource type (VM’s, NSG’s, App Services etc…).

Now there used to be a handy little tool that someone created for CSP migration assessments called the “Azure CSP Assessment”. This was an Azure hosted web app located here: https://azurecspassessment.azurewebsites.net/ but as you can see the site is now longer up and running 🙁

However using the tool was always a risk as the list of resources that support subscription migration and the various limitations changes at quite a pace; as does everything in the Azure world, right!

So it used to mean that I get an export of the customers source Azure subscription resources and resource types using the below PowerShell command:

Get-AzResource | Export-Csv PATHTOFILE.csv

Then using the exported CSV file I would use Excel and the following below pages on Azure Docs to go through each resource type and check its compatibility and limitations:

  1. https://docs.microsoft.com/en-gb/azure/azure-resource-manager/move-support-resources
  2. https://docs.microsoft.com/en-gb/azure/azure-resource-manager/resource-group-move-resources
  3. https://docs.microsoft.com/en-us/azure/cloud-solution-provider/overview/azure-csp-available-services – Only when migrating to CSP

To say this was long winded and painful is an understatement certainly!

Azure Resource Migration Support Tool

So that’s why I have created a handy Excel Workbook that does all the work in comparing against the information in links 1 and 2 above with a simple copy and paste of specific columns from the exported CSV.

I also thought it would be a shame not to share this tool so here it is available for any of you reading this to use for free!

Azure Resource Migration Support Tool V2

Azure Resource Migration Support Tool V4

Azure Resource Migration Support Tool V5

Azure Resource Migration Support Tool V6

All instructions on how to use the tool are on the “Intro Page” sheet within the workbook/spreadsheet.

I will be periodically checking the Azure Docs pages and updating any changes to resources that are now supported for migration to this tool and i will update this page with the latest version of the tool.

What do I do once I’ve used the tool to assess my resources…

Well firstly, please comment below or get in touch with me via Twitter, LinkedIn or e-mail me with any feedback or features you would like in newer releases of the tool.

Once you’ve done that and used the tool to assess your resources in your source subscription, it is highly likely you have a good idea about how you need to proceed.

I strongly suggest running this as a project within your company as it is not as simple as clicking a migrate button. I’ve even called it a “Virtual Data Centre Move” as it really can have the same potential devastating unplanned outages if you don’t treat it with the correct attention and detailed planning.

Personally I suggest building a project plan, if you have a Project Manager to help you, even better. Detail every task you are going to need to do before, during and after the migration, some examples below:

  • Create destination subscription
  • Attach destination subscription to existing (same as source subscription) Azure AD tenant – THIS IS MANDATORY AT THIS TIME, BOTH SUBSCRIPTIONS MUST BE IN THE SAME AZURE AD TENANT
  • Change Public IP SKUs for Resources: X, Y & Z
  • etc…

Once you have your plan built, start raising RFC/Changes (if required) to get this work completed. Some of this work may even require re-provisioning resources to get them on the correct SKUs etc… so it would also be prudent to get any other internal teams involved to assist with testing etc… if you aren’t able to do this yourself during your changes.

Nobody likes the dreaded out of hours phone call when something you couldn’t test doesn’t work after a change.

Once you’ve made all of the prerequisite changes, its now time to probably download the latest version of the tool, export all your resource into a CSV again and check for any additional changes that you may need to make as things may of changed from the Azure side.

If nothing has then that’s great news as you haven’t got to go back through the whole process again. You should now make sure that all Resource Providers in use in the source subscription are registered in the destination subscription.

To check the Resource Providers in use in the either subscription use the following PowerShell command (please note you’ll need to change subscriptions within your PowerShell session using the first 2 commands in the below block):

##Find Subscription ID##
Get-AzSubscription

##Change Subscription Within PowerShell Session##
Select-AzSubscription -SubscriptionId 'PASTE ID HERE'

##Check Resource Providers For Selected Subscription##
Get-AzResourceProvider -ListAvailable | Select-Object ProviderNamespace, RegistrationState

You should get the below output for the Resource Provider command. (I’m using CloudShell, check it out if you aren’t already):

Compare both subscription outputs against each other, using Export-Csv may be your friend here. And then register any providers in the destination subscription that are registered in the source subscription but not in the destination.

To register Resource Providers use the below command (again please note you’ll need to make sure you’ve changed your sessions selection to the correct subscription again using the above commands):

##Register Resource Provider##
Register-AzResourceProvider -ProviderNamespace 'PROVIDER NAMESPACE PLEASE CHANGE'

You should get the below output when registering a provider:

Once you have registered all the required providers run one last comparison check and then you can proceed to actually pushing that ‘Move to another subscription’ button on your resources/resource groups as per your plan.

Summary

As you can see by the length of this article the process is not always straight forward and can be quite a long process from start to finish.

Please let me know your feedback for the tool via any method that I mentioned above.

And more importantly I hope this article helps you plan your migration to be successful.

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Azure & The Importance Of Azure AD

Recently the amount of conversations I have had with customers and colleagues regarding Azure AD and how it links to subscriptions etc… has been astounding.

The most common misconception I see/hear is that because it has the “AD” in its title that it is believed to be a completely separate product unrelated to the fundamental required components to get started in Azure successfully.

Also I get the question from a lot of customers who are already using Azure of “Why do we have to use separate accounts to login to Azure? 

As soon as I hear the above, I instantly smile inside, because I know they haven’t understood Azure AD and its importance at the setup stage of any Azure, Office 365, Dynamics subscription creation.

So what is the importance of Azure AD, I hear you ask?

I’ll start off by showing the below diagram as this may help initiate that lightbulb moment for some of you.

The above diagram shows a typical setup that I have configured many times in the past. At the top we have an existing on-premise Active Directory Forest & Domain (acmecoporation.local) with all existing user, groups & computer objects in an OU structure.

In the middle we have the Azure AD Tenant with the *.onmicrosoft.com domain name of acmecorporation.onmicrosoft.com. 

Some important things of note about the Azure AD tenant:

  • The *.onmicrosoft.com domain name must be globally unique
    • This means checking the availability of the desired domain name is vital before beginning the creation, here is a link to a great tool to do just that
      (Believe me when I say I have seen a surprising amount of *.onmicrosoft.com domain names already been taken for some of my customers)
    • In some circumstances Microsoft themselves can help in tracking down a desired *.onmicrosoft.com domain name and asking the existing tenant owners if they are willing to give it to you
      • However, in most cases the existing tenant owners will not want to give this up as it will involve a large migration from one tenant to another
  • The *.onmicrosoft.com domain name cannot be changed once created
  • The Azure AD tenant should be treated as a single forest & domain configuration when translating to an on-premises AD deployment.
  • Azure AD doesn’t have any trusts between Azure AD tenants like you can do with an on-premises AD deployment
    • There is a feature called Azure AD B2B which is very similar. (A blog post for the future in its own right, watch this space)

The notes above are not a definitive list however they are the most common things I come across on a daily basis.

Users, Groups & Computers can be synchronised from on-premises Active Directory domains via the use of Azure AD Connect (formerly known as DirSync).

Azure AD Connect is an awesome tool that not only synchronises objects from on-premises to your Azure AD tenant, but it also can configure authentication methods (Password Hash Sync, Pass-Through Authentication, ADFS to name a few), all from a GUI based application.

It can also synchronise objects from several other on-premises AD topologies, however Microsofts has an article for this which is very well constructed so I will link to that here.

And finally at the bottom of the diagram are the various subscriptions that are linked to the Azure AD tenant.

Subscriptions can only be linked to one Azure AD tenant, so those subscriptions will only be able to use the users, groups & computer objects that are in the Azure AD tenant.

So I appreciate there is a lot to take in there but this just reiterates my point that it is some important to get it right at the beginning of your cloud journey.

So how do I make the right choice when setting up an Azure Subscription?

Again this is not as easy of a task that a lot of people believe it is. So again to help ensure you get this right I have created a workflow that will help guide you to the correct choice.

Summary

Again I apologise for the information overload in this article however, by taking the time to read through this article (probably several times) it should help you make the right decision around what to do.

Also it should help you avoid the nasty situation of having to migrate to a new subscription which is linked to the correct Azure AD tenant. Believe me these migrations are never fun!

As always comment, like & share!

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