Skip to main content

Vampires | How to clean you Azure Subscription

Playing and testing different scenarios and use cases in Azure can generate a lot of ‘garbage’ under your subscriptions.

When I say garbage I’m referring to different resources that you create but forget to remove. Don't think at resources like Storage, Web Apps or Worker Roles, but many times when you remove things in odd order, you can end up with some resources that are allocated, but you don’t use anymore and you forget about them. For example the storage of a VM, or Traffic Manager that was used for a Web App.
I named 'vampires' this kind of resources. Why? They consume small amount of money every month. Even the value is not high, you can end up at the end of the month with $10 or $20 consumed on them. They are like electrical vampires that we have in our house – a TV that is in standby, a phone/tablet charger, audio system.

Best Practice
The best practice is very clear and simple. Remove all the time resources that you don’t use anymore. But, sometimes you are in hurry or you don’t have time to double check if you removed everything.
In this situations, you can use a simple rule that will help you to save time and avoid this kind of situations. Add all resources that you create under an Azure Subscription for a demo or for a specific test under the same Azure Resource Group.
A Resource Group is like a container where you can put together resources for the same solution. Don’t forget to give a meaningful name to the Resource Group. Otherwise, you will don’t know what was the purpose of it.
After you finish playing with a demo or with an Azure Solution, the only thing that you need to do is to remove the Resource Group. Removing the Resource Group will remove all the resources that were created under it.

But, what you do if you realize that after a few months playing with Azure, you have under your subscription a lot of resources that you forgot about or a lot of resource groups that are empty.
Well, deleting each of them would take a lot of time. It is a boring task and you don’t want to do this. The other solution is to run a power shell script that remove all the Resource Groups that you have under you Azure Subscription. Let’s call it CleanStartScript.

$selectedSubscription = Get-AzureSubscription -Current
Write-Host Subscription in use: $selectedSubscription.SubscriptionName

Write-Host Start Deleting all Resource Groups

$selectedResourceGroups = Get-AzureRmResourceGroup
foreach($currentResourceGroup in $selectedResourceGroups)
  Write-Host Deleting Resource Group: $currentResourceGroup.ResourceGroupName
    Remove-AzureRmResourceGroup -Name $currentResourceGroup.ResourceGroupName -Force -Verbose
  Write-Host Deleted Resource Group:  $currentResourceGroup.ResourceGroupName

Write-Host Ended Deleting all Resource Groups
The scrips can be found on GitHub:

Don't forget to select the right subscription before running this script. Do do this, you might find the following power shell scrips usefull:

  • Get-AzureSubscription -Current |> Get Current Subscription
  • Login-AzureRmAccount |> Login to Azure account
  • Get-AzureAccount |> Get A list of all Azure Subscription under the current account
  • Get-AzureSubscription -SubscriptionId XXX | Select-AzureRmSubscription |> Set the given subscription as the current one 


Popular posts from this blog

ADO.NET provider with invariant name 'System.Data.SqlClient' could not be loaded

Today blog post will be started with the following error when running DB tests on the CI machine:
threw exception: System.InvalidOperationException: The Entity Framework provider type 'System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer' registered in the application config file for the ADO.NET provider with invariant name 'System.Data.SqlClient' could not be loaded. Make sure that the assembly-qualified name is used and that the assembly is available to the running application. See for more information. at System.Data.Entity.Infrastructure.DependencyResolution.ProviderServicesFactory.GetInstance(String providerTypeName, String providerInvariantName) This error happened only on the Continuous Integration machine. On the devs machines, everything has fine. The classic problem – on my machine it’s working. The CI has the following configuration:

TeamCity.NET 4.51EF 6.0.2VS2013
It seems that there …

How to check in AngularJS if a service was register or not

There are cases when you need to check in a service or a controller was register in AngularJS.
For example a valid use case is when you have the same implementation running on multiple application. In this case, you may want to intercept the HTTP provider and add a custom step there. This step don’t needs to run on all the application, only in the one where the service exist and register.
A solution for this case would be to have a flag in the configuration that specify this. In the core you would have an IF that would check the value of this flag.
Another solution is to check if a specific service was register in AngularJS or not. If the service was register that you would execute your own logic.
To check if a service was register or not in AngularJS container you need to call the ‘has’ method of ‘inhector’. It will return TRUE if the service was register.
if ($injector.has('httpInterceptorService')) { $httpProvider.interceptors.push('httpInterceptorService&#…

Fundamental Books of a Software Engineer (version 2018)

More then six years ago I wrote a blog post about fundamental books that any software engineer (developer) should read. Now it is an excellent time to update this list with new entries.

There are 5 different categories of books, that represent the recommended path. For example, you start with Coding books, after that, you read books about Programming, Design and so on.
There are some books about C++ that I recommend not because you shall know C++, only because the concepts that you can learn from it.


Writing solid codeCode completeProgramming Pearls, more programming pearls(recommended)[NEW] Introduction to Algorithms


Refactoring (M. Fowler)Pragmatic ProgrammerClean code[NEW] Software Engineering: A Practitioner's Approach[NEW] The Mythical Man-Month[NEW] The Art of Computer Programming


Applying UML and Patterns (GRASP patterns)C++ coding standards (Sutter, Alexandrescu)The C++ programming language (Stroustrup, Part IV)Object-oriented programming (Peter Coad)P…