# vscode-dev-containers
**Repository Path**: lake001/vscode-dev-containers
## Basic Information
- **Project Name**: vscode-dev-containers
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No
## Statistics
- **Stars**: 0
- **Forks**: 1
- **Created**: 2021-06-14
- **Last Updated**: 2021-06-14
## Categories & Tags
**Categories**: Uncategorized
**Tags**: None
## README
# VS Code Remote / GitHub Codespaces Container Definitions
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Visual Studio Code Remote Development and GitHub Codespaces
Open your code in the cloud, in a local container, on a remote machine, or in WSL and take advantage of VS Code's full feature set.
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A **development container** is a running [Docker](https://www.docker.com) container with a well-defined tool/runtime stack and its prerequisites. The [VS Code Remote - Containers](https://aka.ms/vscode-remote/download/containers) extension and [GitHub Codespaces](https://github.com/features/codespaces) allow you to open or clone code in a local or cloud-hosted dev container and take advantage of VS Code's full development feature set.
This repository contains a set of **dev container definitions** to help get you up and running with a containerized environment. The definitions describe the appropriate container image, runtime arguments for starting the container, and VS Code extensions that should be installed. Each provides a container configuration file (`devcontainer.json`) and other needed files that you can drop into any existing folder as a starting point for containerizing your project. You can use the the **Add Development Container Configuration Files...** command to add one to your project or codespace.
The [vscode-remote-try-*](https://github.com/search?q=org%3Amicrosoft+vscode-remote-try-&type=Repositories) repositories may also be of interest if you are looking for complete sample projects.
## Adding a definition to a project or codespace
1. Either [create a codespace for your repository](https://aka.ms/ghcs-open-codespace) or [set up your local machine](https://aka.ms/vscode-remote/containers/getting-started) for use with the Remote - Containers extension, start VS Code, and open your project folder.
2. Press F1, and select the **Add Development Container Configuration Files...** command for **Remote-Containers** or **Codespaces**.
3. Pick one of the recommended definitions from the list or select **Show All Definitions...** to see all of them. You may need to choose the **From a predefined container configuration definition...** option if your project has an existing Dockerfile or Docker Compose file. Answer any questions that appear.
4. See the definition's `README` for configuration options. A link is available in the `.devcontainer/devcontainer.json` file added to your folder.
5. Run **Remote-Containers: Reopen in Container** to use it locally, or **Codespaces: Rebuild Container** from within a codespace.
### Adding a definition to a repository
You can share a customized dev container definition for your project by adding the files under `.devcontainer` to source control.
Anyone who then opens a local copy of your repo in VS Code will be prompted to reopen the folder in a container, provided they have the [Remote - Containers](https://aka.ms/vscode-remote/download/containers) extension installed. Additionally, this will be used whenever someone creates a codespace in [GitHub Codespaces](https://github.com/features/codespaces) for the repository.
Your team now has a consistent environment and tool-chain and new contributors or team members can be productive quickly. First-time contributors will require less guidance and there will be fewer issues related to environment setup.
## Sample projects
If you want to try a sample project which already has a dev container, check out one of the following repositories:
- [Node Sample](https://github.com/Microsoft/vscode-remote-try-node)
- [Python Sample](https://github.com/Microsoft/vscode-remote-try-python)
- [Go Sample](https://github.com/Microsoft/vscode-remote-try-go)
- [Java Sample](https://github.com/Microsoft/vscode-remote-try-java)
- [.NET Core Sample](https://github.com/Microsoft/vscode-remote-try-dotnetcore)
- [Rust Sample](https://github.com/microsoft/vscode-remote-try-rust)
- [C++ Sample](https://github.com/microsoft/vscode-remote-try-cpp)
- [PHP Sample](https://github.com/microsoft/vscode-remote-try-php)
## Contents
- [`containers`](containers) - Contains reusable dev container definitions.
- [`script-library`](script-library) - Includes scripts used in this repository to install things. Also useful in your own Dockerfiles.
- [`repository-containers`](repository-containers) - Dev container definitions for working public source code repositories. Only used by Remote - Containers.
- [`container-templates`](container-templates) - Contains templates for creating your own container definitions or to [contribute back](CONTRIBUTING.md#contributing-dev-container-definitions).
## Common Questions
### Can I just reuse an existing container image or Docker / Docker Compose configuration?
Yes! If you have a Dockerfile or Docker Compose file in your project/repository, follow the [same steps to add a definition](#adding) and you'll be prompted to select a Dockerfile or Docker Compose file and customize from there. If you then commit these files to a Git repository, you can use it with [GitHub Codespaces](https://github.com/features/codespaces) as well. If you prefer, you can also start up the container manually and [attach to it](https://aka.ms/vscode-remote/containers/attach). However, note that many images will be missing things like `git` that you will want to use. There are scripts in the [script-library](script-library) like the [common script](script-library/docs/common.md) that can help adding these to your existing Dockerfile or image.
### What is the goal of `devcontainer.json`?
A `devcontainer.json` file is similar to `launch.json` for debugging, but designed to launch (or attach to) a development container instead. At its simplest, all you need is a `.devcontainer/devcontainer.json` file in your project that references an image, `Dockerfile`, or `docker-compose.yml`, and a few properties. You can [adapt it for use](https://aka.ms/vscode-remote/containers/folder-setup) in a wide variety of situations.
### Why do Dockerfiles in this repo use `RUN` statements with commands separated by `&&`?
Each `RUN` statement creates a Docker image "layer". If one `RUN` statement adds temporary contents, these contents remain in this layer in the image even if they are deleted in a subsequent `RUN`. This means the image takes more storage locally and results in slower image download times if you publish the image to a registry. You can resolve this problem by using a `RUN` statement that includes any clean up steps (separated by `&&`) after a given operation. See [CONTRIBUTING.md](./CONTRIBUTING.md#why-do-dockerfiles-in-this-repository-use-run-statements-with-commands-separated-by-) for more tips.
## Contributing and feedback
Have a question or feedback?
- Contribute or provide feedback for the [VS Code Remote](https://github.com/Microsoft/vscode-remote-release/blob/master/CONTRIBUTING.md) extensions or [GitHub Codespaces](https://github.com/github/feedback/discussions/categories/codespaces-feedback).
- Search [existing issues](https://github.com/Microsoft/vscode-dev-containers/issues) with dev container definitions or [report a problem](https://github.com/Microsoft/vscode-dev-containers/issues/new).
- Contribute a [development container definition](CONTRIBUTING.md#contributing-dev-container-definitions) to the repository.
This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or
contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.
## License
Copyright (c) Microsoft Corporation. All rights reserved.
Licensed under the MIT License. See [LICENSE](LICENSE).
For images generated from this repository, see [LICENSE](https://github.com/microsoft/containerregistry/blob/master/legal/Container-Images-Legal-Notice.md) and [NOTICE.txt](NOTICE.txt).