Google Summer of Code'25 Final Report

Table of contents

Project Title

Add Docker swarm support to sugar cli

Project Description

This project will enable Sugar users to manage Docker Swarm clusters directly through Sugar’s command-line interface (CLI). These enhancements will streamline container orchestration workflows and make Sugar a more versatile tool for developers transitioning from development to production environments. New commands will enable users to perform tasks such as initializing, joining, creating, scaling, updating, and inspecting Swarm services with simplified Docker Swarm Node and Secrets Management

Project Information

• Contributor : Sai Sanjay Kottakota
• Organisation : Open Science Labs
• Mentors : Ivan Ogasawara , Ana Krelling , Devansh Parmar
• Repositories : sugar , swarm-external-secrets
• URL : https://summerofcode.withgoogle.com/programs/2025/organizations/open-science-labs
• Docs :
  • https://sugar-org.github.io/sugar/
  • https://sugar-org.github.io/swarm-external-secrets

Summary

In this project we aimed to integrate the current sugar workflow integrate with docker swarm , this can make drastic improvements to developer workflow . Added unit test and smoke test for docker swarm integration.

This is the presentation had show cased sugar-cli at FOSS United Hyderabad Meetup April 2025

• Google Slides
• Event Link

Additional Contributions

During the contribution period I’ve seen a lack of makim (another OSL project) to package and distribute among various package managers of prior operating systems. So I decided to use fpm and Integrated with Github Actions CI to build cross platform packaging formats .

Also during the sugar-cli integration with docker swarm, I’ve seen a lack of external secret providers (like hashicorp vault, Azure Key Vault , OpenBao, Google Secrets Manager) to integrate and operate with docker swarm containers , but there’s a existing solution present with kubernetes using external-secrets and with my mentors guidance I’ve worked on developing a docker daemon native plugin named swarm-external-secrets . This plugin ensures to run along with docker swarm containers in a stack synchronizing the docker secrets with external secret providers on each secret update/rotation .

Merged Code

• Contributions to sugar cli
• Contributions to swarm-external-secrets
• Contributions to makim

Future Work

Looking ahead , I am committed to continuing my contributions to sugar cli , by adding tui support and fix any existing bugs in the future. My involvement with the OSL community has been incredibly fulfilling, and I plan to extend my contributions to other OSL repositories as well. By staying engaged with the development process, I hope to further enhance the functionality and reliability of these tools, ensuring they remain robust and useful for the entire community.

Acknowledgement

I would like to express my gratitude to Google, the OSL organization for their support and guidance throughout this journey. I am particularly grateful to my project mentor Ivan Ogasawara, whose invaluable advice and expertise were instrumental in the success of this project. This experience has been immensely rewarding, and I would love to have the opportunity to work with the OSL team again in the future