feat: provide engine image builder

[fucangfy]

No description provided.

[gemini-code-assist]

Summary of Changes

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This pull request enhances the development workflow by providing a robust Docker image builder for the scqlengine. It introduces capabilities for multi-platform builds, leverages caching for efficiency, and ensures a clean development environment through isolation. Additionally, it improves the tutorial's setup process by proactively informing users about necessary image builds.

Highlights

• New Docker Image Builder: Introduced a new build.sh script to automate the creation of the scqlengine Docker image, streamlining the build process.
• Cross-Platform Support: The new builder supports targeting different platforms (e.g., linux/amd64, linux/arm64) for image builds.
• Build Environment Isolation: Implemented an isolated build environment using Docker overlay volumes, protecting the developer's workspace from build-related changes.
• Bazel Cache Integration: Added an option to enable host disk Bazel caching to significantly speed up subsequent builds.
• Tutorial Setup Guidance: Modified the setup.sh script in the tutorial to check for the secretflow/scql:latest Docker image and guide users on how to build it if it's not present.

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Changelog

• examples/tutorial/docker/build.sh
  • Added a new shell script to build the scqlengine Docker image.
  • Implemented argument parsing for image name, tag, target platform, cache enabling, and development environment protection.
  • Integrated Docker volume mounts for Bazel cache and workspace, supporting overlay volumes for isolated builds.
  • Included functions for creating a Docker container, building the engine binary using Bazel, preparing build files, and building the final Docker image.
  • Added comprehensive cleanup logic to remove temporary files, stop containers, and remove overlay volumes on exit.
• examples/tutorial/docker/scql-ubuntu.Dockerfile
  • Added a new Dockerfile for building the scqlengine image based on ubuntu:jammy.
  • Configured TARGETPLATFORM argument for multi-platform builds.
  • Installed essential packages like libgomp1, curl, and iputils-ping.
  • Copied the scqlengine binary into the image from a platform-specific temporary directory.
• examples/tutorial/setup.sh
  • Added a check to verify if the secretflow/scql:latest Docker image exists.
  • Displayed a warning message and instructions to build the image using the new build.sh script if the image is not found.

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[gemini-code-assist]

Code Review

This pull request introduces a build script for creating a Docker image for the SCQL engine, which is a valuable addition. The script is well-structured, incorporating features like build caching and environment isolation. My feedback focuses on enhancing the script's robustness, consistency, and adherence to Docker best practices. I've provided suggestions to make boolean checks more explicit, remove unnecessary flags from Docker commands that could cause issues in automated environments, and make the build process more adaptive. For the Dockerfile, I've recommended optimizations to reduce image size and layer count. The check added to setup.sh is a good improvement for user experience.

[Copilot]

Pull request overview

Adds tutorial tooling to build and use a locally-built secretflow/scql Docker image for the tutorial environment, and warns users during setup if the expected image is missing.

Changes:

• Update setup.sh to warn when secretflow/scql:latest is not present locally.
• Add a Dockerfile (scql-ubuntu.Dockerfile) for packaging the built scqlengine binary into an Ubuntu-based image.
• Add a build script (docker/build.sh) that builds scqlengine via a builder image, stages artifacts, and builds the final runtime image (optionally with cache/isolated overlay mode).

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 5 comments.

File	Description
examples/tutorial/setup.sh	Adds a local-image existence check and build hint.
examples/tutorial/docker/scql-ubuntu.Dockerfile	Defines the runtime image packaging for scqlengine.
examples/tutorial/docker/build.sh	Implements the end-to-end engine build + Docker image build workflow.

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[Song-Quan]

LGTM