# Dalec Dalec is a project aimed at providing a declarative format for building system packages and containers from those packages. Our goal is to provide a secure and reproducible way to build packages and containers, with a focus on supply chain security. > [!NOTE] > Dalec is still under heavy development and the spec format is not currently considered stable. Feedback is welcome! ❤️ ## Features - 🐳 No additional tools are needed except for [Docker](https://docs.docker.com/engine/install/)! - 🚀 Easy to use declarative configuration that provides reproducible builds - 📦 Build packages and/or containers for [Azure Linux](https://github.com/microsoft/azurelinux) 2 and 3 (formerly known as CBL-Mariner) - 🔌 Pluggable support for other operating systems - 🤏 Minimal image size, resulting in less vulnerabilities and smaller attack surface - 🪟 Support for Windows containers - ✍️ Support for signed packages - 🔐 Ensure supply chain security with build time SBOMs, and Provenance attestations 👉 To get started, please see [Dalec documentation](https://azure.github.io/dalec/)! ## Contributing This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.opensource.microsoft.com. When you submit a pull request, a CLA bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., status check, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA. 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 [[email protected]](mailto:[email protected]) with any additional questions or comments. ## Trademarks This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft trademarks or logos is subject to and must follow [Microsoft's Trademark & Brand Guidelines](https://www.microsoft.com/en-us/legal/intellectualproperty/trademarks/usage/general). Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship. Any use of third-party trademarks or logos are subject to those third-party's policies.