docker-image-cleaner

From all the pulled docker images remove keep only the N most recent images pulled

Installation

• Clone repo

• It is adviced to use a virtualenv

• To setup a virtualenv

  $ virtualenv --clear --always-copy VIRTUALENV_NAME

• Install dependencies

  $ VIRTUALENV_NAME/bin/pip install -r requirements.txt

• Run it with the same privileges as the docker client

  $ VIRTUALENV_NAME/bin/python di_cleaner.py --help

• Another way

  $ source VIRTUALENV_NAME/bin/activate
  $ ./di_cleaner --help

Examples

• Run and show what images it is going to delete without deleting them

  $ VIRTUALENV_NAME/bin/python di_cleaner.py --verbose --noop

• Run with debug on

  $ VIRTUALENV_NAME/bin/python di_cleaner.py --debug

• Delete all images except the 10 most recent ones

  $ VIRTUALENV_NAME/bin/python di_cleaner.py --images-to-keep 10

• If you want to preserve the <none> images

  $ VIRTUALENV_NAME/bin/python di_cleaner.py --keep-none-images

Mac OSX

Start up your docker-machine. You need to setup the environment of your docker-machine in your shell

$ eval "$(docker-machine env default)"

Note, default is your virtual machine name

Now you can run all examples.

Tests

Run

$ VIRTUALENV_NAME/bin/python -m unittest discover

Use docker image

Build the image as ${IMAGE_NAME}

docker build  -t ${IMAGE_NAME} .

Execute the program connected to the host socket

docker run -v /var/run/docker.sock:/var/run/docker.sock --rm -it ${IMAGE_NAME} --help