ci: add Docker image release workflow

[slin1237]

Summary

Add automated Docker image publishing to Docker Hub for multi-platform builds.

What changed

• .github/workflows/release-docker.yml: New workflow that:
  • Triggers on push to main when docker/Dockerfile or bindings/python/pyproject.toml changes
  • Supports manual dispatch with optional tag override
  • Builds multi-platform images (linux/amd64, linux/arm64) using QEMU + Docker Buildx
  • Pushes versioned (lightseekorg/smg:<version>) and latest tags to Docker Hub
  • Uses GHA layer caching for faster rebuilds
  • Reads version from pyproject.toml by default

Prerequisites

GitHub secrets DOCKERHUB_USERNAME and DOCKERHUB_TOKEN have been configured on the repo.

Test plan

• Trigger workflow manually via workflow_dispatch to verify build and push
• Verify both lightseekorg/smg:<version> and lightseekorg/smg:latest appear on Docker Hub
• Verify multi-platform manifest includes both amd64 and arm64

Summary by CodeRabbit

• Chores
  • Established automated Docker image building and publishing to container registry with multi-architecture support (AMD64, ARM64)
  • Configured for automatic triggering on main branch updates with manual activation capability
  • Integrated build caching mechanisms to optimize performance and reduce release cycle times

[gemini-code-assist]

Note

Gemini is unable to generate a summary for this pull request due to the file types involved not being currently supported.

[coderabbitai]

📝 Walkthrough

Walkthrough

A new GitHub Actions workflow is introduced that automates building and pushing multi-architecture Docker images to Docker Hub when code is pushed to main or manually triggered, with version extraction from tags or pyproject.toml.

Changes

Cohort / File(s)	Summary
Docker Release Workflow .github/workflows/release-docker.yml	New CI workflow for building and pushing multi-arch Docker images (linux/amd64, linux/arm64) with QEMU/Buildx support, version extraction, Docker Hub authentication, and GitHub Actions caching.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Possibly related issues

• Setup Docker Release workflow #5: Directly implements the requested .github/workflows/release-docker.yml workflow for multi-arch Docker image building and pushing with version/tag configuration.

Suggested labels

ci

Suggested reviewers

• CatherineSue
• key4ng
• XinyueZhang369

Poem

🐰 Hops with delight

A workflow so bright, now we can build,
Docker images pushed with care fulfilled,
Multi-arch magic, amd64 and arm,
No more manual builds—we're transformed! ✨

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly describes the main change: adding a Docker image release workflow to the CI pipeline.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Merge Conflict Detection	✅ Passed	✅ No merge conflicts detected when merging into main

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch ci/docker-release-workflow

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No actionable comments were generated in the recent review. 🎉

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