Enhancement: Provide docker multiarch images

[paolomainardi]

Currently, images on the Docker Hub are only published for the linux/amd64 architecture.
Due to the increasing popularity of ARM for both local development and cloud instances, it would be beneficial to have support for linux/arm64 as well.
While it is relatively easy to accomplish this using buildx, I believe the images are automatically published on Docker Hub through some integration that occurs outside of GitHub actions.

[mrT23]

I don't think there is a real demand for that.

It is not done even in much larger and more popular packages like PyTorch
https://hub.docker.com/r/pytorch/pytorch/tags?page=2&page_size=&ordering=&name=

[paolomainardi]

@mrT23 they are providing arm64 images on ghcr.io, as you can see here:

• Action: https://github.com/pytorch/pytorch/blob/main/.github/workflows/docker-release.yml#L91
• Image: https://github.com/orgs/pytorch/packages/container/pytorch/248296974?tag=2.4.0-runtime
• Merged MR: ci: Add workflow to build official docker images with multiarch pytorch/pytorch#83437

I don't know why they chose to support ghcr.io anyway.

[mrT23]

I don't think it's needed. we already have many platforms and dockers. I won't double the amount by two without a real strong demand.

[paolomainardi]

I don't know what you mean by "platforms and dockers." the docker image published is just linux/amd64 building it even for linux/arm64 I guess it's more or less a flag to add to the docker build process.

Not having it is not a big deal; it will be executed with qemu along with any possible issues that may arise.

[paolomainardi]

Just tested again to natively build on arm64 from an apple silicon machine:

> docker build -t test/pr-agent -f docker/Dockerfile .                                  
[+] Building 82.2s (11/11) FINISHED                                                                                                        docker:desktop-linux
 => [internal] load build definition from Dockerfile                                                                                                       0.0s
 => => transferring dockerfile: 1.25kB                                                                                                                     0.0s
 => [internal] load metadata for docker.io/library/python:3.12.3                                                                                           1.8s
 => [internal] load .dockerignore                                                                                                                          0.0s
 => => transferring context: 147B                                                                                                                          0.0s
 => [base 1/5] FROM docker.io/library/python:3.12.3@sha256:3966b81808d864099f802080d897cef36c01550472ab3955fdd716d1c665acd6                               25.9s
 => => resolve docker.io/library/python:3.12.3@sha256:3966b81808d864099f802080d897cef36c01550472ab3955fdd716d1c665acd6                                     0.0s
 => => sha256:db4833383c5df58967f7f7012b21834b5477b4a20e092b93dc89d4bc5726a3b9 2.77MB / 2.77MB                                                             0.5s
 => => sha256:94c9c1a110e2aec14c4da4be6e41c22baa463c9db548884e75ac02e97c1bbf41 243B / 243B                                                                 0.5s
 => => sha256:9256ecbd254ade127592159086931931bdcdb7ba0580d5533d02852d00fc34d7 22.21MB / 22.21MB                                                           4.1s
 => => sha256:228270bb5dc5207f6bbf31f0728807c55124238c0b5e44dc35eafcc56e166acb 6.47MB / 6.47MB                                                             2.1s
 => => sha256:30ed4c12791345d3f20f66024e1f22275ce507868c508509b83dcf231b1c9adc 63.99MB / 63.99MB                                                          14.6s
 => => sha256:feb30c5ba2d151512d29ff4b92109a740559509ef6f3072a86c5006a1379397b 202.59MB / 202.59MB                                                        22.7s
 => => sha256:15856ca26414127b85cee6d10acbc4cee6eba9070f3f5a04b9cc72ce95abfa7f 23.59MB / 23.59MB                                                           6.0s
 => => sha256:91e301773f03e9e0fabc5c177fe6bfe8daf14e992ab816f151692b814ddc462c 49.61MB / 49.61MB                                                           9.8s
 => => extracting sha256:91e301773f03e9e0fabc5c177fe6bfe8daf14e992ab816f151692b814ddc462c                                                                  0.6s
 => => extracting sha256:15856ca26414127b85cee6d10acbc4cee6eba9070f3f5a04b9cc72ce95abfa7f                                                                  0.2s
 => => extracting sha256:30ed4c12791345d3f20f66024e1f22275ce507868c508509b83dcf231b1c9adc                                                                  0.7s
 => => extracting sha256:feb30c5ba2d151512d29ff4b92109a740559509ef6f3072a86c5006a1379397b                                                                  2.3s
 => => extracting sha256:228270bb5dc5207f6bbf31f0728807c55124238c0b5e44dc35eafcc56e166acb                                                                  0.1s
 => => extracting sha256:9256ecbd254ade127592159086931931bdcdb7ba0580d5533d02852d00fc34d7                                                                  0.2s
 => => extracting sha256:94c9c1a110e2aec14c4da4be6e41c22baa463c9db548884e75ac02e97c1bbf41                                                                  0.0s
 => => extracting sha256:db4833383c5df58967f7f7012b21834b5477b4a20e092b93dc89d4bc5726a3b9                                                                  0.1s
 => [internal] load build context                                                                                                                          0.0s
 => => transferring context: 665.84kB                                                                                                                      0.0s
 => [base 2/5] WORKDIR /app                                                                                                                                0.2s
 => [base 3/5] ADD pyproject.toml .                                                                                                                        0.0s
 => [base 4/5] ADD requirements.txt .                                                                                                                      0.0s
 => [base 5/5] RUN pip install . && rm pyproject.toml requirements.txt                                                                                    42.0s
 => [cli 1/1] ADD pr_agent pr_agent                                                                                                                        0.1s
 => exporting to image                                                                                                                                    12.1s
 => => exporting layers                                                                                                                                   10.0s
 => => exporting manifest sha256:4796240a6bb66bbe159977c46cc3079ab9b4f508a04fc586d2e709584a6890c3                                                          0.0s
 => => exporting config sha256:a2c64bd6d60a580e1a44e32fb2234640385f8df59471ecaa800269cb1d2dfb72                                                            0.0s
 => => exporting attestation manifest sha256:6c5567cf9835f10fb68e03db1b1de02edd42c6ae4998d42c63001f503cfa4354                                              0.0s
 => => exporting manifest list sha256:f90964ee842ab9b75d84dfe1f76e13c06b0c4f38303c11d807c337d86149f54b                                                     0.0s
 => => naming to docker.io/test/pr-agent:latest                                                                                                            0.0s
 => => unpacking to docker.io/test/pr-agent:latest                                                                                                         2.0s

> docker run --rm -it --entrypoint "bash" test/pr-agent -c "arch"
aarch64

> docker run --rm -it test/pr-agent
usage:     Usage: cli.py --pr-url=<URL on supported git hosting service> <command> [<args>].
    For example:
    - cli.py --pr_url=... review
    - cli.py --pr_url=... describe
    - cli.py --pr_url=... improve
    - cli.py --pr_url=... ask "write me a poem about this PR"
    - cli.py --pr_url=... reflect
    - cli.py --issue_url=... similar_issue
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