docker / docker-credential-helpers

Contributing to docker/docker-credential-helpers

This document aims to provide a comprehensive guide for developers who want to contribute to the docker/docker-credential-helpers project.

Getting Started

  1. Fork the repository: Create a fork of the docker/docker-credential-helpers repository on GitHub. This will allow you to make changes without directly affecting the original project.

  2. Clone the repository: Clone your forked repository to your local machine:

git clone https://github.com/<your-github-username>/docker-credential-helpers.git
  1. Create a new branch: It’s essential to work on a separate branch for each feature or bug fix. This makes it easier to manage changes and to merge them back into the main branch later.
git checkout -b <branch-name>

Development Environment Setup

  1. Install dependencies: The docker-credential-helpers project uses Go. Ensure you have Go installed and configured on your system. You can find instructions on how to do this on the official Go website.

  2. Build the project: The project provides a Makefile to automate the build process. To build the osxkeychain helper program, execute:

make osxkeychain

This will produce an executable in the bin directory.

Contributing to the Project

  1. Familiarize yourself with the codebase: Explore the existing code, understand its structure, and identify areas where you can contribute.

  2. Choose a task: Look for open issues on GitHub or identify potential areas for improvement. Prioritize tasks that align with your skills and interests.

  3. Write high-quality code: Ensure your code is well-documented, properly formatted, and follows the established coding style. Utilize the provided linters and validation tools:

make fmt
make lint
make validate

  1. Write unit tests: Write thorough unit tests for your code to ensure it works as expected and doesn’t introduce regressions.

  2. Create a pull request: Once you’ve completed your changes, create a pull request on GitHub, providing a detailed description of your contribution. This description should include:

  • A clear summary of the changes made.
  • The rationale behind the changes.
  • Any relevant documentation updates.
  • Links to related issues.
  1. Address feedback: The maintainers will review your pull request and provide feedback. Be responsive to their comments and make necessary revisions.

Project-Specific Build and Test Commands

  • docker buildx create --use: This command creates a Docker buildx builder instance, which can be used for building multi-architecture images.
  • docker buildx bake "https://github.com/docker/docker-credential-helpers.git": This command builds credential helpers from the remote repository, outputting the results to the ./bin/build directory.
  • make test: This command executes tests defined in the project.
  • make clean: This command cleans the build environment.

Additional Information

  • The project utilizes Go and relies on the make command for building and testing.

  • Contributing to docker-credential-helpers requires a strong understanding of Go programming, containerization technologies, and the concept of credential helpers.

  • Remember to follow the project’s code of conduct and contribute in a respectful and collaborative manner.