Add 'platform' option to build options in docker_image

[geerlingguy]

SUMMARY

I need to support multi-arch builds for some of my Docker images (e.g. support amd64 and arm64), and doing so requires running docker build with the --platform argument. It seems the docker_image module doesn't support that argument right now, so if I want to do this I have to use command:

- command: docker build --platform arm64 --pull -t geerlingguy/my-image:latest-arm64 .

ISSUE TYPE

• Feature Idea

COMPONENT NAME

docker_image

ADDITIONAL INFORMATION

Related issue: geerlingguy/drupal-container#24

[ansibullbot]

Files identified in the description:

• plugins/modules/cloud/docker/docker_image.py

If these files are inaccurate, please update the component name section of the description or use the !component bot command.

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[ansibullbot]

cc @DBendit @WojciechowskiPiotr @akshay196 @chouseknecht @danihodovic @dariko @felixfontein @jwitko @kassiansun @softzilla @ssbarnea @tbouvet
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[felixfontein]

The build() function has support for platform: https://docker-py.readthedocs.io/en/stable/api.html#docker.api.build.BuildApiMixin.build

So it should be relatively straightforward to implement.

[felixfontein]

resolved_by_pr #54