Sebastiaan van Stijn 73be7342a6 cli/command/container: --use-api-socket: support DOCKER_AUTH_CONFIG
With this patch, the `--use-api-socket` flag can obtain credentials from
a validly formatted `DOCKER_AUTH_CONFIG` environment-variable. If the
env-var is not set, or doesn't contain credentials, it falls back to
attempting to read credentials from the CLI's configured credentials
store.

With this patch:

    # Make sure there's no auth on disk first
    mkdir -p tmpConfig
    export DOCKER_CONFIG=$PWD/tmpConfig
    rm -f $PWD/tmpConfig/config.json

    # no credentials
    docker run --rm --use-api-socket alpine cat /run/secrets/docker/config.json
    cat: can't open '/run/secrets/docker/config.json': No such file or directory

    # pass credentials through DOCKER_AUTH_CONFIG
    DOCKER_AUTH_CONFIG='{"auths": {"https://index.docker.io/v1/": {"auth": "am9lam9lOmhlbGxv"}}}' docker run --rm --use-api-socket alpine cat /run/secrets/docker/config.json
    {
        "auths": {
            "https://index.docker.io/v1/": {
                "auth": "am9lam9lOmhlbGxv"
            }
        }
    }

    # credentials from file if no DOCKER_AUTH_CONFIG is set
    echo '{"auths": {"https://index.docker.io/v1/": {"auth": "am9lam9lOmhlbGxv"}}}' > "${DOCKER_CONFIG}/config.json"
    docker run --rm --use-api-socket alpine cat /run/secrets/docker/config.json
    {
        "auths": {
            "https://index.docker.io/v1/": {
                "auth": "am9lam9lOmhlbGxv"
            }
        }
    }

    # same if DOCKER_AUTH_CONFIG is set, but doesn't contain credentials
    DOCKER_AUTH_CONFIG='{}' docker run --rm --use-api-socket alpine cat /run/secrets/docker/config.json
    {
        "auths": {
            "https://index.docker.io/v1/": {
                "auth": "am9lam9lOmhlbGxv"
            }
        }
    }

    DOCKER_AUTH_CONFIG='{"auths": {}}' docker run --rm --use-api-socket alpine cat /run/secrets/docker/config.json
    {
        "auths": {
            "https://index.docker.io/v1/": {
                "auth": "am9lam9lOmhlbGxv"
            }
        }
    }

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2025-04-17 12:15:57 +02:00
2025-04-16 14:52:19 +08:00
2024-09-06 10:23:23 +02:00
2025-03-08 22:20:09 +01:00
2024-06-20 13:22:11 +02:00
2024-06-20 13:22:11 +02:00
2017-04-17 17:49:33 -04:00
2023-11-10 21:35:15 +01:00
2024-08-05 11:58:34 +02:00
2022-04-04 10:44:11 +02:00
2025-02-06 01:41:59 +01:00

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

In-container development environment

Start an interactive development environment:

make -f docker.Makefile shell

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Use and transfer of Docker may be subject to certain restrictions by the United States and other governments.

It is your responsibility to ensure that your use and/or transfer does not violate applicable laws.

For more information, see https://www.bis.doc.gov

Licensing

docker/cli is licensed under the Apache License, Version 2.0. See LICENSE for the full license text.

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