An easy-to-use wrapper for multi-platform Docker image builds.
Project description
mdocker
An easy-to-use wrapper for multi-platform Docker image builds.
Contents
Description
mdocker is a simple wrapper over Docker Buildx, which can be used for easy image building targeted for multiple platforms.
This tool was originally designed as a workaround to a limitation that Buildx has with the --load parameter.
Note: There are, however, some workarounds and progress towards this issue.
So, the amount of target platforms specified for this wrapper will be equal to the amount of tags generated in local cache.
E.g., if linux/arm64 and linux/amd64 were specified as target platforms for a demo image, you will get demo:arm64 and demo:amd64 built and stored within your local Docker cache.
Usage
mdocker requires an installation of Python 3.10+.
Below is a help message with the description of arguments.
$ python3 -m mdocker --help
usage: [-h] [--context BCONTEXT] [--file DFILE] [--platforms PLATFORMS] [--push] name
positional arguments:
name specify a name for the image
options:
-h, --help show this help message and exit
--context BCONTEXT specify a path to build context
--file DFILE specify a path to Dockerfile
--platforms PLATFORMS
specify target platforms (e.g., --platforms linux/amd64,linux/arm64)
--push push image to remote registry
Installation
From PyPI (recommended)
To install latest mdocker package from PyPI, use:
python3 -m pip install mdocker
Local from source
To install and debug mdocker locally, in the root of repository use:
python3 -m pip install -e .
No installation, direct run from source
To run mdocker without any installation into local cache, in the root of repository use:
export PYTHONPATH=$(pwd)
python3 -m poetry install --no-root
python3 mdocker <arguments>
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