Pull ghcr.io hosted Docker images instead of building

[tylerpayne]

The python code is now only responsible for pulling the docker images from the Github Container Registry.

Also added a convenience script for building all images locally if necessary.

Removed the --rebuild-docker CLI option.

Resolves #76

[husseinmozannar]

quick question: If I build the docker locally, will this pull from that local docker or will still force a download from ghcr on first time?

[tylerpayne]

It will only pull if there is no matching image locally, so if you build first then it will not pull. (And if you build after pull it replaces your local image with the built version)

…

On Thu, Jul 17, 2025 at 2:41 PM Hussein Mozannar ***@***.***> wrote: ***@***.**** commented on this pull request. quick question: If I build the docker locally, will this pull from that local docker or will still force a download from ghcr on first time? — Reply to this email directly, view it on GitHub <#271 (review)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABJIQ6OU5WDMLDQTQ6RXSDD3I7U4LAVCNFSM6AAAAACBX7YABGVHI2DSMVQWIX3LMV43YUDVNRWFEZLROVSXG5CSMV3GSZLXHMZTAMZQGYYTINJRHE> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[Copilot]

Pull Request Overview

This PR transitions the Docker image management from building images locally to pulling pre-built images from GitHub Container Registry (ghcr.io/microsoft). The change simplifies the setup process by removing the need to build Docker images locally and eliminates the --rebuild-docker CLI option.

Key changes:

• Replaces build_browser_image() and build_python_image() functions with pull_browser_image() and pull_python_image()
• Updates Docker image references to use versioned images from GitHub Container Registry
• Removes the --rebuild-docker CLI option and related parameter passing
• Adds a convenience script for building all images locally when needed

Reviewed Changes

Copilot reviewed 10 out of 21 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/magentic_ui/_docker.py	Core changes to replace build functions with pull functions and update image references to use registry URLs
src/magentic_ui/backend/cli.py	Removes --rebuild-docker option and updates function calls from build to pull
src/magentic_ui/_cli.py	Updates function imports and calls from build to pull operations
src/magentic_ui/tools/playwright/browser/vnc_docker_playwright_browser.py	Updates default image parameter to use new constant
docker/build-all.sh	New convenience script for building all Docker images locally
TROUBLESHOOTING.md	Updates troubleshooting documentation to reflect pull vs build approach
README.md	Updates documentation to reflect new pull-based workflow
.github/workflows/docker-build-push.yml	Updates Docker build context paths

[husseinmozannar]

works! thanks for creating this! I will test it in a new environment and handle fixes in later PR