How to add image label when dockerfile maven build

[dragon9783]

Is this a BUG REPORT or FEATURE REQUEST?:
FEATURE REQUEST

Description

[Add feature/bug description here]
When build image, how to add image label, like docker build --label xxxx

How to reproduce

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What do you expect

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What happened instead

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Software:

• docker version: [Add the output of docker version here, both client and server]
• Spotify's dockerfile-maven version: [Add dockerfile-maven version here]

Full backtrace

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[mattnworb]

I don't think this exists at all in the plugin, but we'd be happy to accept any pull requests that add it.

[thibgc]

We'd like a feature like that :-)

Currently we work around it by passing build arguments that are then used as the values of LABEL directives in the Dockerfile. (But there is a bug with build arguments containing spaces: #286)