Script to clean up docker images and containers to free up space

docker_clean.sh

#!/bin/bash
# Script to clean up unused containers and images

DANGLING_IMAGES=$(docker images -q --filter "dangling=true")

# Keeps the last 2 images/containers
IMAGE_IDS=$(docker images -q | tail -n +3)
CONTAINER_IDS=$(docker ps -a -q | tail -n +3)

if [ -n "$CONTAINER_IDS" ]; then
  docker rm $CONTAINER_IDS
fi

if [ -n "$IMAGE_IDS" ]; then
  docker rmi $IMAGE_IDS
fi

if [ -n "$DANGLING_IMAGES" ]; then
  docker rmi $DANGLING_IMAGES
fi