A development container allows you to create a full-featured development environment to use in your codespace. Codespaces use the
devcontainer.json file to define the environment you will be working in within your codespace. We've added new features to
devcontainers.json to help you customize the initial experience when you open a codespace.
You can use
openFiles to define what files are open by default. If you specify multiple files, the files will open up in order from left to right. The first file defined will be the focused file.
openFiles is specific to the Codespaces customization, and is only enabled in the Codespaces web editor for now. Use
openFiles to improve your default development environment and ensure that you're setting contributors up for success!
postAttachCommand enables you to run scripts in the terminal after your client connects to the codespace. This change enables you to define multiple
postAttachCommand definitions and they will run on separate terminals. This enables you to start your server and watch for changing files after launch from your
These changes to
postAttachCommand, combined with the existing
openPreview option in the
onAutoForward property, enable you to create codespaces with a default layout that ensures a great Codespaces launch experience for users of your repository.