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🐳 Keep an eye on your docker image size and prevent it from growing too big
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README.md

docker-image-size-limit

wemake.services Build Status Coverage wemake-python-styleguide

Limit your docker image size with a simple CLI command. Perfect to be used inside your CI process.

Read the announcing post.

Installation

pip install docker-image-size-limit

Usage

We support just a single command:

$ disl your-image-name:label 300MiB
your-image-name:label exceeds 300MiB limit by 114.4 MiB

Options

You can specify your image as:

  • Image name: python
  • Image name with tag: python:3.6.6-alpine

You can specify your size as:

  • Raw number of bytes: 1024
  • Human-readable megabytes: 30 MB or 30 MiB
  • Human-readable gigabytes: 1 GB or 1 GiB
  • Any other size supported by humanfriendly

Should I use it?

You can use this script instead:

LIMIT=1024
IMAGE='your-image-name:latest'

SIZE="$(docker image inspect "$IMAGE" --format='{{.Size}}')"
test "$SIZE" -gt "$LIMIT" && echo 'Limit exceeded'; false

But I prefer to reuse tools over custom bash scripts here and there.

License

MIT.

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