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Sebastiaan van Stijn f594a7f09b cli/command/image: remove uses of JSON field
The JSON field was added in [moby@9fd2c0f], to address [moby#19177], which
reported an incompatibility with Classic (V1) Swarm, which produced a non-
standard response;

> Make docker load to output json when the response content type is json
> Swarm hijacks the response from docker load and returns JSON rather
> than plain text like the Engine does. This makes the API library to return
> information to figure that out.

A later change in [moby@96d7db6] added additional logic to make sure the
correct content-type was returned, depending on whether the `quiet` option
was set (which produced a non-JSON response). This caused inconsistency in
the API response, and [moby@2f27632] changed the endpoint to always produce
JSON (only skipping the "progress" output if `quiet` was set).

This means that the "load" endpoint ([`imageRouter.postImagesLoad`]) now
unconditionally returns JSON, making the `JSON` field fully redundant.

This patch removes the use of the JSON field, as it's redundant, and the way it handles
the content-type is incorrect because it would not handle correct, but different
formatted response-headers (`application/json; charset=utf-8`), which could
result in malformed output on the client.

[moby@9fd2c0f]: 9fd2c0feb0
[moby#19177]: https://github.com/moby/moby/issues/19177
[moby@96d7db6]: 96d7db665b
[moby@2f27632]: 2f27632cde
[`imageRouter.postImagesLoad`]: 7b9d2ef6e5/api/server/router/image/image_routes.go (L248-L255)

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2025-10-27 21:37:36 +01:00
2025-10-14 09:11:31 +02:00
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Docker CLI

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About

This repository is the home of the Docker CLI.

Development

docker/cli is developed using Docker.

Build CLI from source:

docker buildx bake

Build binaries for all supported platforms:

docker buildx bake cross

Build for a specific platform:

docker buildx bake --set binary.platform=linux/arm64 

Build dynamic binary for glibc or musl:

USE_GLIBC=1 docker buildx bake dynbinary 

Run all linting:

docker buildx bake lint shellcheck

Run test:

docker buildx bake test

List all the available targets:

make help

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Start an interactive development environment:

make -f docker.Makefile shell

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