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Posted 9 Aug 2018
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Azure Deployment using Visual Studio Team Services (VSTS) and .NET Core

, 9 Aug 2018
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Set up Continuous Integration and Deployment to Azure in VSTS using Azure and Visual Studio. The post Azure Deployment using Visual Studio Team Services (VSTS) and .NET Core appeared first on Sander's bits.

Hey all,
After three years of radio silence I decided to write a new blog post *crowd goes wild*! A lot has happened since my last post. I wrote a book on Continuous Integration, Delivery, and Deployment (with JavaScript and Jenkins, mostly); got a Microsoft Azure certificate; found a new job using those Azure skills; and I got my own company on the side. Three years ago I ended with a blog series on math, but I’m not finishing that. Apologies if you were really looking forward to #4… My new focus, for now, will mainly be Microsoft Azure, Visual Studio Team Services (VSTS), and C# .NET Core. So without further delay, let’s talk about those!

Microsoft Azure

Microsoft Azure has been around for a few years now and you’ve probably heard of it. It’s the Microsoft cloud platform that competes directly with Amazon’s AWS and Google’s Google Cloud. If you don’t really know what “the cloud” is (besides the pretty hyped buzzword) I suggest you really look into it as I believe it’s the future (heck, it’s the present)! If you do not already have an account I suggest you create one. It’s free and you only need a credit card and a Microsoft email account like hotmail or outlook.

Beware, Azure is free for now. You get free credit which is valid for one month. Some services cost a monthly fee, for others you pay per use. Just having an empty Azure account is always free. In this post we’re going to host a default web application in Azure using an App Service (which, in any case, will cost you close to nothing).

Visual Studio Team Services (VSTS)

VSTS is Microsoft’s cloud version of Team Foundation Service (TFS), which is their tool for continuous integration and deployment, source control, and agile tools like SCRUM and Kanban boards. Again, if you do not yet have a subscription I recommend you create one. Just like with Azure it’s free and you need a Microsoft email address, like hotmail or outlook. For the free version of VSTS you get quite a bit of functionality, like 240 free build minutes per month and unlimited free private Git repositories (always use Git, never Team Foundation Service Control (TFSC)). With an MSDN subscription you get some extra functionality, but the free tier is good enough for this post.

.NET Core

Do I really need to explain this? For the last few years Microsoft has focused on .NET Core, an open source multi-platform subset of the .NET Framework. While it still has some issues, even in the latest .NET Core 2.1 release, it’s also pretty cool and I’m already using it for production software. It’s a bit different than the full .NET Framework, but not a lot. You may have to download and install the latest SDK, which can all be found on the .NET Core GitHub page. Visual Studio support for .NET Core starts from Visual Studio 2017, so be sure you’re up to date, otherwise you can probably follow along with a regular .NET Framework ASP.NET Web Application.

Creating a .NET Core project

So let’s put these tools together. We start by creating a new (private) project in VSTS, which is pretty simple. In fact, you probably already created one when you created a VSTS account. I kept the default, MyFirstProject. When you browse to the Code tab of your project in VSTS you can initialize your repository (at the bottom of the page) with a README.md file and a .gitignore file (choose Visual Studio).

Initialize a repository in VSTS
Initialize a repository in VSTS.

You can copy the link or clone directly into Visual Studio on the next page in the right upper corner under the “Clone” button. I’m assuming you know how Git works, so I’m not covering that here.

Once you have the repository locally we can start by adding some code. Since we’re focusing on deploying to Azure using VSTS it doesn’t really matter what code you have, so just create an ASP.NET Core Web Application in Visual Studio 2017. You can pick a regular Web Application (which will use Razor View Pages by default) or a Model-View-Controller project, whichever you fancy. Once the default web application template loads you can commit and push it to your Git repository and we can start the fun!

Azure App Services

For the next step we’re going to mess around in Azure a bit. Log in to your Azure portal and find your App Services. Simply click the “Add” button, pick a “Web App” and hit “Create”. On the next page you can set some settings for your web app, such as the URL at which your app will be hosted (which always ends at .azurewebsites.net).

New Azure Web App
New Azure Web App

You’ll also have to create a resource group or pick an existing one. A resource group is simply a way to group certain resources for a quick overview. For example, you can have a separate resource group for dev, test, acceptance and production or for your customer portal and your internal tools, it’s all up to you.

The most important setting here is the App Service Plan/Location. This is basically a server that you pay for. A new plan is generated for you, but you can create your own as well. You have different price tiers with different hardware specifications and Azure functionality, like CPU, memory, custom domains, staging slots, and daily backups.

The location of your plan determines where the server is physically located. For me, in the Netherlands, West Europe is ideal because I know it’s in Amsterdam. Just go with the default Standard S1 plan. Even if you don’t have free credits you can delete it after you’ve read this blog post and it will only cost you like $0.03, so don’t worry about costs.

Setting up deployment from Azure

For now we’re staying in Azure. You’ve probably seen the “Build and Release” button in VSTS. That’s where you can create new build and deployment pipelines, which is great, but also a bit of work.

A build pipeline can automatically build and test your software after a push to Git. This includes restoring NuGet packages, minifying and bundling any HTML, CSS and JavaScript you might have, executing task runners and basically anything you’d ever need to make your software build and run. When your latest commit is built and tested VSTS can create an artifact for publication.

The deployment pipeline can download the artifact from a build pipeline and put it in Azure (or on your own on-premise servers). The trigger for a deployment is usually that a build has succeeded, but can also be a push to Git or a manual trigger.

When you’re building and testing your software automatically this is called Continuous Integration (or CI) and when your software is also automatically deployed this is called Continuous Deployment (or CD). There’s something in between, which holds off the deployment until a user explicitly presses a button and gives the “okay” sign, this is called Continuous Delivery. When you’re doing both CI and Continuous Delivery and/or Deployment you’re doing “CI/CD”.

Let’s set this up with pretty much a single button click. You’ve got two options in Azure. In your Web App, either configure deployment from the “Deployment options” menu item or use the newer “Deployment Center (Preview)” which, as the name suggests, is still in preview.

Deployment options in Azure
Deployment options in Azure

Deployment options

It’s really so simple I’m not even sure if I should walk you through the next steps. Click the “Deployment options” menu item and simply fill in the options you want to use.

Deployment settings in Azure
Deployment settings in Azure

And that’s that. If you now browse to the Deployment options in your Web App you’ll see that Azure now shows all your commits. If you push a new commit to your repository you can even see the build status in Azure because Azure linked it to your VSTS account.

Continuous deployment in Azure
Continuous deployment in Azure

When deployment is done, browse to your Azure website (for me that’s imunique.azurewebsites.net) and behold, your website is up and running! Try changing something on the homepage, push it to Git, wait a few minutes, and see your website get updated.

Deployment Center (Preview)

My guess is that Microsoft is planning to replace the “Deployment options” with the “Deployment Center (Preview)”. If you have already set up CI/CD with the Deployment options you’ll see your commits in here too. For the purpose of this blog we’re going to “Disconnect” (button in the top menu).

Now go to the Deployment Center (Preview) and you should see various source control options, like VSTS, Github and Bitbucket. It’s a little more visually appealing than most Azure panels. So pick VSTS and continue. Next, you have to pick a build provider. I have zero experience with Kudu, so pick “VSTS Continuous Delivery” (which somehow isn’t the default).

Deployment center in Azure
Deployment center in Azure

In the next panel you can pick your VSTS account and repository. Unfortunately, at the time of writing this blog there seems to be a bug here which prevents me from picking an account. It worked in the past and the Azure team said they have fixed the problem in an upcoming release (which is pretty often)… So try it our yourself as this may work for you!

Anyway, if you continue, Azure creates a build pipeline and a deployment pipeline in VSTS! Now that’s pretty cool. It gives you complete control over your builds and deployments as you can tweak them however you like. At the same time the Deployment Center now shows you which builds have been deployed.

Pipelines in VSTS

So browse to your VSTS and check out the build. The user interface isn’t always intuitive, but you should be able to find it. You can edit the build and click around a bit. You shouldn’t need to change it, but you can.

VSTS build
VSTS build

The deployment is a little different. There’s just one build for every piece of code, but there can be multiple deployments, for example for your entire DTAP street (dev, test, acceptance, and production). Azure created a release with a single environment, “Dev”.

VSTS release
VSTS release

You can change the deployment in the “Tasks” for that environment (either click the Dev tile or select Tasks in the upper menu). The tasks look kind of similar to the VSTS build and can be (completely) different for each environment. Mostly, your tasks will be more or less the same and you’ll only have some values that differ per environment. You can use “Variables” for these different values, but that’s out of the scope of this post.

It’s also pretty easy to clone an entire environment (including it’s tasks and variables). Just hover over the tile of the environment you’d like to clone and a “Clone” button will show up. Click it and you get a new environment that’s exactly like the one you cloned. Further setup of builds and releases is out of scope of this post, but you can click around if you like.

When you’re done playing around simply delete the release and the build pipelines (in that order). Also make sure you disconnect the deployment in the Azure Deployment Center.

Deployment from Visual Studio 2017

Finally, let’s switch back to Visual Studio. You can do the exact same thing in Visual Studio. Right click on the project you want to release (which is your web project) and choose “Overview” in the drop down menu. In the page that opens go to “Publish” (in the menu on the left).

Here you can publish or set up your CI/CD. Click the “Start” button under “Continuous Delivery” and you can once again choose a VSTS subscription and an App Service (it creates a new App Service by default, but you can also select an existing one). Simply clicking the “Ok” button will have the same outcome as what we did in the Deployment Center. It will create a new build and deployment pipeline that is also visible in your Deployment Center. Pretty cool!

Going back to the Publish page in Visual Studio, you can also just publish directly. This is pretty useful if you want to release something to Azure right now. Simply click the “Start” button under “Publish”. You can now either create a new Azure App Service or pick an existing one. Just follow the wizard and your application will be published to Azure directly, without a build or deployment pipeline. Be careful though, your local build will be deployed, which will often be different than a build from the build server.

Wrap up

So there you have it! Deployment was never this easy! In just a couple of minutes we’ve created an application, put it in source control, and deployed it to the cloud, ready for the world to see (you can restrict access, but that’s out of scope). In the past it could take you hours to set up a new server (or days and even weeks if you still had to order one), but this alternative is a lot faster and cheaper.

The next step is using ARM (Azure Resource Management) templates to automatically create App Services and other Azure resources. Check out my post on ARM templates to get started.

Don’t forget to delete your App Service and your App Service plan or you’ll be charged for them!

Good luck and happy coding!

The post Azure Deployment using Visual Studio Team Services (VSTS) and .NET Core appeared first on Sander's bits.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Sander Rossel
Software Developer (Senior)
Netherlands Netherlands
Sander Rossel is a professional developer since 2010 with working experience in .NET and .NET Core (C#, ASP.NET, and Entity Framework), SQL Server, Azure, Visual Studio Team Services, JavaScript, and other technologies.
He has an interest in various technologies including, but not limited to, Functional Programming, NoSQL, Cloud, Continuous Integration, and software quality in general.

You can't miss his must read book Continuous Integration, Delivery, and Deployment!

He also wrote the +/- 100 page eBooks Object-Oriented Programming in C# Succinctly and SQL Server for C# Developers Succinctly.

And he wrote a JavaScript LINQ library, arrgh.js (works in IE8+, Edge, Firefox, Chrome, and probably everything else).

Check out his prize-winning articles here on CodeProject and his blogs over at sanderrossel.com as well!

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