Skip to main content
Python Software Foundation 20th Year Anniversary Fundraiser  Donate today!

No project description provided

Project description

docker-image-size-limit

wemake.services Build status codecov Python Version 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

Or use our Github Action or pre-built docker image.

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

Programmatic usage

You can also import and use this library as python code:

from docker import from_env
from docker_image_size_limit import check_image_size

oversize = check_image_size(from_env(), 'image-name:latest', '1 GiB')
assert oversize < 0, 'Too big image!'  # negative oversize - is a good thing!

We also ship PEP-561 compatible type annotations with this library.

Github Action

You can also use this check as a Gihub Action:

- uses: wemake-services/docker-image-size-limit@master
  with:
    image: "$YOUR_IMAGE_NAME"
    size: "$YOUR_SIZE_LIMIT"

Here's an example.

Docker Image

We have a pre-built image available.

First, pull our pre-built docker image:

docker pull wemakeservices/docker-image-size-limit

Then you can use it like so:

docker run -v /var/run/docker.sock:/var/run/docker.sock --rm \
  -e INPUT_IMAGE="$YOUR_IMAGE_NAME" \
  -e INPUT_SIZE="$YOUR_SIZE_LIMIT" \
  wemakeservices/docker-image-size-limit

Should I use it?

You can use this script instead:

LIMIT=1024  # adjust at your will
IMAGE='your-image-name:latest'

SIZE="$(docker image inspect "$IMAGE" --format='{{.Size}}')"
test "$SIZE" -gt "$LIMIT" && echo 'Limit exceeded'; exit 1 || echo 'Ok!'

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

License

MIT.

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for docker-image-size-limit, version 0.4.0
Filename, size File type Python version Upload date Hashes
Filename, size docker_image_size_limit-0.4.0-py3-none-any.whl (5.2 kB) File type Wheel Python version py3 Upload date Hashes View
Filename, size docker-image-size-limit-0.4.0.tar.gz (5.2 kB) File type Source Python version None Upload date Hashes View

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring DigiCert DigiCert EV certificate Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page