Installs Ruby and a version manager (mise or rbenv) along with the dependencies needed to build Ruby.

Example Usage

Using mise (default)

"features": {
    "ghcr.io/rails/devcontainer/features/ruby:1": {
        "version": "3.3.0"
    }
}

Using rbenv

"features": {
    "ghcr.io/rails/devcontainer/features/ruby:1": {
        "version": "3.3.0",
        "versionManager": "rbenv"
    }
}

Using mise explicitly

"features": {
    "ghcr.io/rails/devcontainer/features/ruby:1": {
        "version": "3.3.0",
        "versionManager": "mise"
    }
}

Opting in to precompiled Rubies with mise

"features": {
    "ghcr.io/rails/devcontainer/features/ruby:1": {
        "version": "3.3.0",
        "versionManager": "mise",
        "usePrecompiledRubies": true
    }
}

When using mise, this feature keeps ruby.compile=true by default so Ruby is compiled from source. Set usePrecompiledRubies to true to make mise prefer precompiled Rubies when they are available.

Options

Options Id	Description	Type	Default Value
version	The version of ruby to be installed	string	4.0.6
versionManager	The version manager to use for Ruby (mise or rbenv)	string	mise
usePrecompiledRubies	Use precompiled Rubies with mise when available	boolean	false

Customizations

VS Code Extensions

OS Support

This Feature should work on recent versions of Debian/Ubuntu-based distributions with the apt package manager installed.

bash is required to execute the install.sh script.