In this article, we'll publish to Azure Container Registry. Right-click on the project node, and choose Add > Docker Support to add a Dockerfile to your project. Read about the new features and fixes from June. Add Docker Support is missing in Visual Studio 2017 Ask Question Asked 5 years, 9 months ago Modified 5 years, 9 months ago Viewed 5k times 5 I have Visual Studio Community 2017 (v. 15.3.4), Docker for Windows CE (stable channel, v. 17.06.2-ce-win27 (13194)) and .NET Core SDK 2.0.0 installed on my PC. On Linux, you should enable rootless Docker and set the generated Docker context to "rootless" (more secure) or enable Docker CLI for the non-root user account (less secure) that will be used to run VS Code. If we couldn't mangle every name, perhaps we could at least find some subset names we safely could. You can view the environment variables, labels, ports, volumes, the file system, and logs. The Docker extension wiki has troubleshooting tips and additional technical information. Soon enough we had a working build with all _ properties mangled. For Windows containers, Windows 10 version 1809 or later, to use the Docker images referenced in this article. Next lets take a look at how our application gets built and deployed as a container. Set a breakpoint in WeatherController.cs in the Get method and try appending /weatherforecast to the base localhost and port URL to activate that code. Press . So together Johannes Rieken (@johannesrieken) and I started to explore private property mangling. Check off the drives you'll use when running your application and click the Apply button (you'll be asked for your password). The project uses the SPA Proxy during debugging. Learn more in our FAQ. You may get a warning message from your firewall asking you to grant permission for your application but, once you've given that permission, your application should start. After adding code for these cases, we soon had working builds. It provides scaffolding of . However, we quickly dismissed this approach as it would require massive (meaning risky) code changes, including removing all of our uses of parameter properties. For more tutorials from Jack Wallen, subscribe to TechRepublics YouTube channel How To Make Tech Work and, remember to like this video. You can display the content and push, pull, or delete images from Docker Hub and Azure Container Registry: An image in an Azure Container Registry can be deployed to Azure App Service directly from VS Code. From left side of the dialog select Shared Drives. This policy from TechRepublic Premium provides guidelines for applying effective, secure and reliable configuration management techniques, whether in test, development or production environments. Right-click on that and pick Settings to display the Settings dialog. Native private properties are already mangled automatically and our build tools will hopefully become better at optimizing code across our entire codebase. The next step is different depending on whether you're using Linux containers or Windows containers. Code size has become even more of a focus with VS Code shipping on web (https://vscode.dev) in addition to the desktop application. This also brought a 5% speed up in code loading because less source text has to be scanned. That means there's nothing to stop rude code outside of the class from reaching in and accessing private properties willy-nilly: Hopefully your code isn't doing questionable things like this directly, but carelessly changing property names can potentially bite you in plenty of fun unexpected ways such as with object spreads, serialization, and when distinct classes share common property names. From the list, select Docker (you'll probably find that it's already switched to Docker). In practice, this means that esbuild mangles local variable names and argument names. Here we want to select Enable Docker Support and make sure Linux is selected in the following drop-down. Check the Environment variables section and add the following environment variables if not already present: Set the URL to https://localhost:{proxy-port} where {proxy-port} is the port from the proxy server (from step 1). Read our privacy statement to learn more. // Here `longPropertyName` gets rewritten to `x`, // But this reference doesn't and now the lookup is broken, In this blog post, there are 4 First, you'll need to download Docker for Windows. The Docker extension makes it easy to build, manage, and deploy containerized applications from Visual Studio Code. Sure that's less than some of the individual gifs from our release notes, but that's still nothing to sniff at! The compile step on the mangled source code would give us much more confidence that we hadn't accidentally broken our code. Next we discovered that esbuild can selectively mangle properties that match a given regular expression. Docker support in Visual Studio There are two levels of Docker support you can add to a project. That said, there are some nice enhancements under the hood that make the development process even more seemless. You can find it on the menu under View > Other Windows > Containers, or press Ctrl+Q and start typing containers in the search box, then choose Containers window from the results. Enabling Docker Support -- Visual Studio Magazine After Docker for Windows is installed, you'll find the Docker icon sitting in the Notifications popup on your taskbar. For more information on available commands, see Get started with Azure CLI. Open a Visual Studio dev command prompt, go to the ClientApp folder in your project, and then give the command, npm run start. Thinking about how we could feel more confident in a mangling build step, we hit on a new idea: what if TypeScript could verify the mangled code for us? The command will generate a Dockerfile and .dockerignore file and add them to your workspace. This meant first using TypeScript's tooling to confidently rename identifiers, and then using TypeScript again to make sure our newly mangled source code would still compile correctly. In this case, I suspect that others over the years had looked through VS Code's minified sources and wondered about those long names. Visual Studio remotely attaches to the process running inside the container. While we were definitely impressed with how well TypeScript was able to generate thousands and thousands of correct edits across our entire codebase, we also had to add logic to handle a few edge cases: It's not good enough for a new private property name to be unique in the current class, it also has to be unique across all superclasses and subclasses of the current class too. You can add Docker files to your workspace by opening the Command Palette (F1) and using Docker: Add Docker Files to Workspace command. Similar to when working with Visual Studio 2017, a Dockerfile is generated with four named build stages (base, build, publish, and final). Surely private properties can be safely mangled and code outside of the class would be none the wiser, right? Many of the most common Docker commands are built right into the Command Palette: You can run Docker commands to manage images, networks, volumes, image registries, and Docker Compose. There are two levels of Docker support you can add to a project, and the supported options vary by the type of project and the version of Visual Studio. From the hottest programming languages to commentary on the Linux OS, get the developer and open source news and tips you need to know. For more news about Jack Wallen, visit his website jackwallen.com. In addition, you can use the Problems panel (Ctrl+Shift+M on Windows/Linux, Shift+Command+M on Mac) to view common errors for Dockerfile and docker-compose.yml files. Create a project and add Docker support Create a new project using the ASP.NET Core with React.js template. Click on the Files tab, and expand the app folder to see your published application files. APIs you expose (the consumers won't know about the new mangled names. Notice the two drops on the right side. Get started with Docker - Visual Studio for Mac | Microsoft Learn If you dont wish to send usage data to Microsoft, you can set the telemetry.telemetryLevel setting to off. ). Prerequisites Docker for Windows Only once we had worked to reduce this risk, create the right safety nets, and make the cost of adopting mangling almost zero, did we finally feel confident enough to enable it in our builds. Not too shabby considering we got this reduction without deleting any code and without any major refactorings in our codebase. Heres how its done. Get up and running with ChatGPT with this comprehensive cheat sheet. Generative AI will be a game changer in cloud security, especially in common pain points like preventing threats, reducing toil from repetitive tasks, and bridging the cybersecurity talent gap. You'll learn to create and run Docker containers, persist data, and deploy your containerized application to Azure. Create a new project using the ASP.NET Core with React.js template. When these files are created, we also create the necessary artifacts to provide first-class debugging support for Node.js, Python, and .NET (C#). Whether requiring programming and coding services, managed services assistance, security consulting expertise or other assistance, success typically depends upon selecting a capable provider that understands the organizations needs, possesses the required expertise, and is capable of completing the project on time and on budget. With the launching of Visual Studio 2019 recently, I felt compelled to target one more IDE . We may investigate these further if doing so seems worthwhile and if we can come up with a safe approach. Be sure to add these lines both in the first section, to add the installation of the Node package manager npm.exe to the base image, as well as in the build section. For instance, we had to make sure not to accidentally touch the APIs that extensions use, and also had to exempt a few symbols that were exported from TypeScript but then called from untyped JavaScript (typically these are entry points for a worker thread or process). The Container Tools option in the Output window shows what actions are taking place. Linux and Docker Coding Bundle VS Code collects usage data and sends it to Microsoft to help improve our products and services. This all came together so that Joh and I could work in our spare time to ship a fairly drastic change with almost no impact to the other developers working on VS Code. subscribe to TechRepublics YouTube channel How To Make Tech Work, Python programming language: This training will jump-start your coding career, 8 must-have tools for developers on Linux, Programming languages and developer career resources, TechRepublic Premium Editorial Calendar: IT Policies, Checklists, Hiring Kits and Research for Download, Microsofts First Generative AI Certificate Is Available for Free, How Generative AI is a Game Changer for Cloud Security, The 8 Best International Payroll Services for 2023, ChatGPT Cheat Sheet: Complete Guide for 2023, 6 Best monday.com Competitors and Alternatives for 2023. Once this is done, we are ready to create an ASP.NET Core Docker container in Visual Studio. This is a new optimization added to Visual Studio 2019. I'm sure a smart TypeScript programmer like yourself would never write such code, but dynamic patterns are common enough in real world codebases that esbuild opts to play it safe. Eager to try out this new approach, we soon came up with new mangling build step that roughly works like this: And somewhat surprisingly for such a nave seeming approach, it worked! Verify that you can hit a breakpoint in client-side JavaScript code by setting a breakpoint in ClientApp/src/components/Counter.js in the incrementCounter function, and then try hitting the breakpoint by clicking the Increment button on the Counters page. This tutorial is the beginning of a four-part series introducing Docker for use with Visual Studio Code (VS Code). While this example is contrived, there are actually many ways these breaks can happen in real code: Although you can force esbuild to mangle basically every single name it finds, doing so completely breaks VS Code for the reasons outlined above. Hacking and Securing Docker Containers Across all of VS Code, mangling removes 3.9 MB of JavaScript code from our compiled sources. However, addressing this had likely seemed impossible to do safely, or maybe just didn't seem worth a potentially massive engineering investment. The Dockerfile should now look something like this: The preceding Dockerfile is based on the mcr.microsoft.com/dotnet/core/aspnet image, and includes instructions for modifying the base image by building your project and adding it to the container. You can now pull the container from the registry to any host capable of running Docker images, for example Azure Container Instances. When the dialog closes, you'll find that a Dockerfile file has been added to your project. When debugging, the JavaScript client runs on the host machine, but the ASP.NET Core server code runs in the container. It also provides one-click debugging of Node.js, Python, and .NET inside a container. This surprised me. Organizations contract with a vast range of information technology consultants. On the Additional information screen, you can't select Enable Docker Support, but don't worry, you can add that support later. The Docker Explorer lets you examine and manage Docker assets: containers, images, volumes, networks, and container registries. The support for Docker in Visual Studio has changed over a number of releases in response to customer needs. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments. The first time you build, Docker downloads the base images, so it might take a bit longer. I have a .net web project in Visual Studio 2017 that I am trying to containerize with Docker. As a simple example of how things could go wrong, consider: If mangling changes longPropertyName to x, the dynamic lookup on the next line will no longer work: Notice in the code above how we're still trying to use longPropertyName to access the property even though the property itself has been changed during mangling. To build and deploy our application to the running container, we must debug using the Docker configuration profile. You should see something like this: Note the local URL. Open the file ClientApp/src/setupProxy.js and change the line that sets the target to use the localhost address and port on the container. Although we put a lot of thought into what features we build into VS Code, over the years adding new functionality has necessarily grown the amount of code we ship. The second smaller drop in 1.80 is from mangling exports. Visual Studio Container Tools for Docker on Windows - Visual Studio Create a web app All reductions in total, this file is now 20% smaller than it would be without mangling. All rights reserved. Microsoft announced an open source project called TypeChat to help developers create better natural language UI for working with the large language models (LLMs) in advanced AI-powered applications. This gives us the ability to set breakpoints and debug our application while it is running. During minification, mangling shortens long identifier names, transforming code such as: Since JavaScript is shipped as source text, reducing the length of identifier names actually decreases the program's size. Docker extension for Visual Studio Code Thankfully I realized that with VS Code I had one huge advantage: I was working with a (mostly) sane codebase. Sure, we could run our tests or try starting VS Code, but this was time consuming and what if we overlooked less common code paths? This action changes the Docker entry in the launchSettings.json file and launches the correct URL for the local proxy running on the host. We're always striving to make VS Code and our codebase better, and I think the mangling work is a great demonstration of how we approach this. To publish to Azure Container Registry, an Azure subscription. And indeed, smart tools like esbuild already implement identifier mangling. I have become quite accustomed to the previous version however, I must admit the improvements are very intuitive. This is safe unless your code is doing some truly absurd things (in which case, you likely have far bigger issues than code size to worry about). Serializing objects or parsing JSON to an expected object shape. Ideally, some day much of this work won't be necessary at all. Microsoft has been busy updating its Semantic Kernel open source SDK for creating AI-infused applications, recently adding Java support and integration with Azure Cognitive Search. How to customize Docker containers in Visual Studio As long as the exports were only used internally, I felt confident we could shorten them without changing the behavior of the code. If the container port changes, which can happen if you make a significant change, such as updating launchSettings.json or updating the debug launch profile in the IDE, you'll need to update the port in setupProxy.js and also restart the proxy. This passion includes keeping the size of VS Code's JavaScript small. Dockerfile Overview A Dockerfile is the recipe for creating a final Docker image. This is a simple as installing Visual Studio 2019 with the .NET Core cross-platform development workload installed. You can use Docker Desktop, which requires Windows 10 or later. The Containers window shows the running containers and lets you view information about them. Does your business need a payroll provider that offers international payroll services? If a potential optimization makes your source code less readable or maintainable, or requires significant manual work, it's almost never worth it unless it delivers truly spectacular improvements. You'll need to decide what operating system will be used inside your containers (Windows or Linux). For the purposes of this example we will select the API project template. You'll get a dialog asking you to pick what operating system your container should use -- pick the same one you chose when installing Docker for Windows. That will give you a list of drives available from your computer. I know that optimization probably seems more than a little silly if you're coming from a compiled language, but here in the wonderful world of JavaScript we gladly take wins like this wherever we can find them! Very dissapointed. Prior to building or debugging our application, we will already notice some activity in the Container Tools output in the output window. We will create an ASP.NET Core application docker support and also enable docker support in an existing application. Open the Containers tool window. With the http and https ports exposed, the container is primed and ready to go. The first step is making sure Visual Studio is set up correctly. We then thought about how to make this change as safely as possible. We can see the container by running docker ps from the command line. However, this regular expression only matches against the identifier name. If the Azure Account extension is installed, you can browse your Azure Container Registries as well. In order to allow our application to build, deploy, and run quickly Visual Studio preemptively creates a container. I assumed esbuild would have already shortened these identifiers. The Bring Your Own Device Approval Form, from TechRepublic Premium, will help you identify employee needs and approve access before any personal device is permitted to contain company data or is connected to company resources, systems or networks. Getting Started with Docker in Visual Studio 2019 To create a production image containing all contents, use the Release configuration. You'll get a dialog asking you to pick what operating system your container should use -- pick the same one you chose when installing Docker for Windows. Also keep in mind that the private keyword in TypeScript is really just a polite suggestion. Reverted back to v12, created WebAPI and menu item is available. Docker Debugging in VS Code. For more information, see Debug containerized apps and Customize the Docker extension. However esbuild's conservative approach means that it skips mangling many names because it can't be confident that changing them is safe. Mangling private properties shows that significant improvements can still be found in VS Code without resorting to massive code changes or costly rewrites. By convention, this indicates a private property. The development experience in Visual Studio 2019 is very similar to Visual Studio 2017 as it pertains to building Docker containers. Edit Docker in Visual Studio Code The Docker extension makes it easy to build, manage, and deploy containerized applications in Visual Studio Code. Now before you rush out to rename all of your variables to single letters, I want to stress that optimizations like this need to be approached cautiously. We can see this by observing the running containers which shows or original container is still running. One port is used for HTTP traffic; the other port is used for HTTPS. Visual Studio Tools for Docker on Windows | Microsoft Learn Instead all it took was a new build step: name mangling. In Visual Studio's toolbar, find the dropdown list for the F5/Play button. Choose the Images tab, locate the one for your project, and then choose the Details tab to view a json file that contains information about an image. The VS Code team is passionate about performance, be that optimizing hot code paths, reducing UI re-layouts, or speeding up startup time. Feedback? In the Solution Window, right click the DockerDemo project and select Add > Add Docker Support : Visual Studio for Mac will automatically add a new project to your solution called docker-compose and add a Dockerfile to your existing project. You should see the installation steps associated with npm.exe. This will copy node and npm to the container. See Use the Containers window. Not only is that a nice reduction in download size and install size, that's also 3.9 MB less JavaScript that needs to be scanned every single time you start VS Code. 1 Answer Sorted by: 4 In VS2022, right click the project you want to add Docker to and choose "Add" and then choose "Docker Support". In a few places in our code, subclasses made inherited protected properties public. We can also see that the same container that was started when we created our application is still running. This issue is read only, because it has been in the Closed - Fixed state for over 90 days. This chart shows the size of workbench.js over time. That file specifies the container image to be used and the instructions for loading and starting your application. Similar to when working with Visual Studio 2017, a Dockerfile is generated with four named build stages (base, build, publish, and final).

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