matchish

<?php

# Implements a recursive null object pattern.
#
# Implemented as a trait so any object can make it's properties use
# the null pattern without resorting to inheritance.
#
# The goal is so you can pull data off a partially populated object
# without excessive existance checks.
trait NullPattern {

matchish

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm