Capabilities of deploymens scripts for Azure environments (cloud)

In this post we will talk about the value and the importance of deployments scripts and what a deployment script should contains where we are working with a cloud environments (in our case Azure).

A deployment script(s) is a collection of scripts that are used to deploy a solution (in one or multiple environments). In general, deployments scripts are reused between different deployments of the same solutions, the only thing that we need to configure is the custom configuration for that environment (naming, custom folders path, connection strings and so on).

A deployment script that serves a cloud application is no very different from a deployment script used for on-premises systems. Sometimes there are small things that are forgotten or ignored for the deployments scripts that serve a cloud application.

This happens because we forget that each Azure resource is like an external dependency that should be treated separately.

Visual Studio Deployment

With the latest version of Visual Studio (VS2015), deployment can be made easily directly from Visual Studio (VS). To tell you the true sometimes is a pleasure to be able to deploy and manage Azure application directly from the IDE.

When we deploy our application directly from VS we are assuming that people that will make the deployments will have VS installed. Not all IT and people involved in operational and support team will have the IDE installed.

Not only this, but we limit ourselves to manual deployment only. All the deployments will be possible only when by a manual trigger. This means that we will not be able to deploy automatically our Azure application during a night build for example.

Even if the development team can use Visual Studio to deploy a web application or content to a worker roles, we should have all the time deployment scripts that are able to make a full deployment.

Subscription and subscription administrator account

We should never assume that we will do all the time a deployment to the same subscription. Even if at the beginning we have the same subscription for all the environments, in time it is pretty clear that we will not end up with only one Azure subscription.

In this context we should be able to control and specify what subscription is used when a deployment is done. You should never assume that the subscription administrator account already logged in the Power Shell with his Azure credentials. We should be able to configure this information when we make a deployment. It is not necessary to do this directly in a configuration file, at least we should provide this information as parameters of the deployment script.

This is extremely important when we have a night build for example. The night build should be able to make a full deployment of an Azure application, without assuming that specific resources were already created for him.

Azure resources around the application

Usually an Azure application doesn’t contains only one Azure Service. Multiple Azure Services are used by an application

Another assumption that is usually made is related to Azure resources that are required by an Azure application. We are assuming that resources like storage (Azure Blob Storage) or the Azure Cache is already created.

In general this is almost true. But what is happening if we need to create a new environment or something happens and we need to recreate that resources

In that case we would need to manually create that resource. Once we create that resource, we need to configure our application to point to our resource (path, connection string, and authentication and authorization stings.

The vision of a capabilities of a deployment script (for cloud):

To create all resources that are needed to run the cloud application
To configure all the services that form our cloud application
To be run from command line
To be able to create and deploy fully our cloud application without human intervention

The reality

Based on our needs, priorities and availability of people the vision can become the reality of only a dream
The most important thing is to aspire to the vision

Windows Docker Containers can make WIN32 API calls, use COM and ASP.NET WebForms

After the last post , I received two interesting questions related to Docker and Windows. People were interested if we do Win32 API calls from a Docker container and if there is support for COM. WIN32 Support To test calls to WIN32 API, let’s try to populate SYSTEM_INFO class. [StructLayout(LayoutKind.Sequential)] public struct SYSTEM_INFO { public uint dwOemId; public uint dwPageSize; public uint lpMinimumApplicationAddress; public uint lpMaximumApplicationAddress; public uint dwActiveProcessorMask; public uint dwNumberOfProcessors; public uint dwProcessorType; public uint dwAllocationGranularity; public uint dwProcessorLevel; public uint dwProcessorRevision; } ... [DllImport("kernel32")] static extern void GetSystemInfo(ref SYSTEM_INFO pSI); ... SYSTEM_INFO pSI = new SYSTEM_INFO(

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 http://go.microsoft.com/fwlink/?LinkId=260882 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 4.51 EF 6.0.2 VS2013 It see

Navigating Cloud Strategy after Azure Central US Region Outage

Looking back, July 19, 2024, was challenging for customers using Microsoft Azure or Windows machines. Two major outages affected customers using CrowdStrike Falcon or Microsoft Azure computation resources in the Central US. These two outages affected many people and put many businesses on pause for a few hours or even days. The overlap of these two issues was a nightmare for travellers. In addition to blue screens in the airport terminals, they could not get additional information from the airport website, airline personnel, or the support line because they were affected by the outage in the Central US region or the CrowdStrike outage. But what happened in reality? A faulty CrowdStrike update affected Windows computers globally, from airports and healthcare to small businesses, affecting over 8.5m computers. Even if the Falson Sensor software defect was identified and a fix deployed shortly after, the recovery took longer. In parallel with CrowdStrike, Microsoft provided a too

Cloud as a Story - Vunvulea Radu

Search This Blog