add: linux/arm/v7 to build platforms

[nevil-mathew]

Summary by CodeRabbit

• Chores
  • Extended Docker image platform support by adding linux/arm/v7 to the existing linux/amd64 and linux/arm64 builds. This enables running the container on 32-bit ARM devices (e.g., certain Raspberry Pi models) without additional steps. Container behavior and features remain unchanged; this update only broadens where the image can be used. No action is required for current users.

[coderabbitai]

Walkthrough

The workflow for building Docker images was updated to include linux/arm/v7 in the multi-platform build matrix alongside linux/amd64 and linux/arm64. No other steps, logic, or control flow were modified.

Changes

Cohort / File(s)	Summary
GitHub Actions workflow \.github/workflows/docker-image.yml	Add linux/arm/v7 to Docker Buildx platforms; retain existing linux/amd64 and linux/arm64; no other workflow changes.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• add: github action to publish docker image #784 — Also modifies .github/workflows/docker-image.yml to adjust multi-arch Docker build targets, aligning with this PR’s platform extension.

Poem

A whisk of YAML, a hop through the vines,
I bundle my images for many designs.
From amd64 to arm’s little den,
Now v7 joins the burrow again.
Thump-thump—multi-arch dreams align! 🐇🚀

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title Check	✅ Passed	The title succinctly captures the primary change of adding linux/arm/v7 as a build platform in the CI workflow, directly reflecting the modifications made to docker-image.yml; it is clear, specific, and concise.
Docstring Coverage	✅ Passed	No functions found in the changes. Docstring coverage check skipped.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch update-github-work

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[coderabbitai]

Actionable comments posted: 1

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between f7d7bf3 and 595ded9.

📒 Files selected for processing (1)

• .github/workflows/docker-image.yml (1 hunks)

[coderabbitai]

⚠️ Potential issue | 🟠 Major

Add QEMU emulation before building for linux/arm/v7.

Expanding to linux/arm/v7 needs binfmt support. Unlike amd64/arm64, GitHub-hosted runners don’t have 32-bit ARM emulation preloaded, so BuildKit will fail when it tries to execute RUN layers for that architecture. Please add a docker/setup-qemu-action@v3 step (with platforms: arm,arm64) before invoking Buildx so the new target can actually build.

🤖 Prompt for AI Agents

.github/workflows/docker-image.yml around line 80: adding linux/arm/v7 requires
QEMU binfmt registration on GitHub runners; insert a docker/setup-qemu-action@v3
step (configure with platforms: arm,arm64) before the Buildx/build steps so QEMU
emulation is registered, then proceed to the existing buildx setup and build
with platforms: linux/amd64,linux/arm64,linux/arm/v7.