We are very pleased to announce the general availability of .NET Core 2.1 for Red Hat Enterprise Linux and OpenShift platforms!
.NET Core is the open-source, cross-platform .NET platform for building microservices. .NET Core is designed to provide the best performance at scale for applications that use microservices and containers. Libraries can be shared with other .NET platforms, such as .NET Framework (Windows) and Xamarin (mobile applications). With .NET Core you have the flexibility of building and deploying applications on Red Hat Enterprise Linux or in containers. Your container-based applications and microservices can easily be deployed to your choice of public or private clouds using Red Hat OpenShift. All of the features of OpenShift and Kubernetes for cloud deployments are available to you.
.NET Core 2.1 continues to broaden its support and tools for microservice development in an open source environment. The latest version of .NET Core includes the following improvements:
Continue reading “Announcing .NET Core 2.1 for Red Hat Platforms”
Last year, I wrote a blog post how to remotely debug your ASP.NET Core container on OpenShift with Visual Studio Code. Today I introduce how to remotely debug a pod using Visual Studio from your Windows computer. Sometimes you encounter an issue that happens only in the production environment. Remotely debugging a pod enables you to investigate such an issue.
Visual Studio and Visual Studio Code now support SSH as a transport protocol for remote debugging. If a remote host accepts an SSH connection, Visual Studio can do remote debugging using Visual Studio’s default feature. However, you need to use the
oc command instead of an SSH client such as putty since Red Hat OpenShift pods don’t allow direct connections via SSH. The MIEngine debugger enables you to use any command for SSH connection.
All the steps below have been confirmed using a combination of Visual Studio 2017 (versions 15.7.2 and 15.8 preview2) on Windows 10 and OpenShift 3.9.
Continue reading “Remotely Debug an ASP.NET Core Container Pod on OpenShift with Visual Studio”
Security is a very important consideration when running your custom middleware applications. The internet can be an unfriendly place.
Sometimes middleware users have a requirement for their software to run in a “‘disconnected” environment, which is one where the network is not routed to addresses outside the one the local node is on—in other words, no internet.
Continue reading “Using .NET Core in a “Disconnected” Environment”
At Red Hat Summit 2018, Red Hat’s John Osborne and Microsoft’s Harold Wong gave a talk: Developing .NET Core Applications on Red Hat OpenShift.
.NET Core 1.0 availability for Linux was announced two years ago, but many developers still have a number of questions about the differences between .NET Framework and .NET Core. The session started with an overview of the differences. In a nutshell, .NET Framework is the set of APIs and libraries that Windows developers have used to years, which is pretty heavily tied to Microsoft Windows and Windows GUI APIs. On the other hand, .NET Core is the cross-platform set of APIs that are available for building applications that can run on Linux, macOS, or mobile devices via Xamarin. .Net Core 2.0 was released last August; see Don Schenck’s article.
One of the key questions is when to use one versus the other. Here’s the summary Harold Wong presented:
Continue reading “Red Hat Summit: Developing .NET Core Apps on Red Hat OpenShift”
Visual Studio provides a graphical remote debugging ASP.NET Core app with Docker Tools for Windows. Since Visual Studio supports SSH protocol, you can remote debug ASP.NET Core process running on the Linux host. It used to be if you install and setup SSH server on docker container, you can remote debug with Visual Studio. However, it’s strongly not recommended due to security reasons. Now I’ll explain to you how to remote debug your ASP.NET Core on OpenShift with Visual Studio Code by using
oc exec command instead of installing SSH server on docker container. You can use Microsoft proprietary debugger engine
vsdbg with Visual Studio Code (or other Visual Studio products). Visual Studio Code can integrate other commands than
SSH for debugger transport protocol.
Continue reading “Remote debug your ASP.NET Core container on OpenShift with Visual Studio Code”
Most books teaching C# start with a ‘Hello World’ application. This simple program is used to explain concepts like namespaces, classes, Main and Console.WriteLine. When every line of the code has been dissected, it’s clear how it works.
It’s less obvious for an ASP.NET Core application. We are no longer invoking our code; instead, the ASP.NET Core framework is doing that for us. In this blog post, we’ll look at a simple ASP.NET Core application and explain how ASP.NET Core makes it tick.
Continue reading “ASP.NET Core Hello World Explained”
When you build your .NET Core project, NuGet packages are retrieved from nuget.org by default. Sometimes, however, you might want to use a local NuGet repository. For example, you may want to:
- use private NuGet packages, but you don’t want anyone except your associates to see them.
- cache a NuGet repository at a server near your build servers
- leave your build server disconnected from the Internet.
I’ll explain how to set up a private NuGet server on OpenShift and how you can use this NuGet server when building your .NET Core project in OpenShift using s2i-dotnetcore.
Continue reading “Running a NuGet server on OpenShift”
D-Bus is a Linux message bus system. Many system daemons (like systemd, PulseAudio, bluez) and desktop services can be controlled via D-Bus. Some applications can be reached via the global system bus and others are on a per-user-login-session bus.
Continue reading “Connecting .NET Core to D-Bus”
I am pleased to share that Red Hat is a co-sponsor of .NET Conf this year!
.NET Conf September 19-21
ONE WEEK FROM TODAY: .NET Conf is a free, live streamed, 3-day virtual developer event organized by the .NET community. Learn to build for web, mobile, desktop, games, services, libraries and more for a variety of platforms and devices all with .NET. Save the date and tune in!
Continue reading “Red Hat to sponsor .NET Conf virtual conference – Sept 19-21”
.NET Core 2.0 represents the maturation of the .NET Core development effort. This, the third release (previous releases being version 1.0 and 1.1), brings nearly 20,000 more APIs and a much richer and deeper developer experience. To put it in the vernacular, .NET Core is ready for prime time.
This blog post will show you the critical steps and configurations necessary to use .NET Core 2.0 running on RHEL inside your Linux containers.
Continue reading “Using .NET Core 2.0 and RHEL in Linux Containers”