🗑 Delete all docker services, containers, images, and volumes

docker-destroy.sh

#!/usr/bin/env zsh

# Exit when any command fails
set -e

# https://docs.docker.com/engine/reference/commandline

SCRIPT_NAME=$(basename ${0})
DELETE_BUILDER_CACHE=0

usage() {
  echo "Usage: ${SCRIPT_NAME} [OPTIONS]" 1>&2
  echo ""
  echo "Deletes docker containers, images, and volumes."
  echo ""
  echo "Options:"
  echo "  --cache       Also delete builder cache"
  echo "  --help, -h    Show this menu"
  exit 1
}

while [ "$1" != "" ]; do
  case ${1} in
    --cache)
      DELETE_BUILDER_CACHE=1
      ;;
    --help | -h)
      usage
      ;;
  esac
  shift
done

# ------------------------------------------------------------------------------
# Composed Services
# ------------------------------------------------------------------------------

echo "Stopping services..."

# The `docker compose` commands require knowing where the config file is.
# By default, it'll find `docker-compose.yml` in the current directory.
# But if you're wanting to stop services whose config files are elsewhere
# then we need to parse out those locations.
COMPOSE_FILES=($(
  docker compose ls --all --format json \
    | jq -r '[ .[].ConfigFiles | split(",") ] | flatten | unique | .[]'
))

for CFILE in "${COMPOSE_FILES[@]}"; do
  if [ -f "${CFILE}" ]; then
    docker compose -f "${CFILE}" stop
  fi
done

echo ""

# ------------------------------------------------------------------------------
# Containers
# ------------------------------------------------------------------------------

echo "Removing containers..."

docker container prune --force

CONTAINERS=($(docker container ls --all -q))

for CONTAINER in "${CONTAINERS[@]}"; do
  docker container rm --force --volumes ${CONTAINER}
done

echo ""

# ------------------------------------------------------------------------------
# Images
# ------------------------------------------------------------------------------

echo "Removing images..."

docker image prune --all --force

IMAGES=($(docker image ls --all -q))

for IMAGE in "${IMAGES[@]}"; do
  docker image rm --force ${IMAGE}
done

echo ""

# ------------------------------------------------------------------------------
# Volumes
# ------------------------------------------------------------------------------

echo "Removing volumes..."

docker volume prune --force

VOLUMES=($(docker volume ls -q))

for VOLUME in "${VOLUMES[@]}"; do
  docker volume rm --force ${VOLUME}
done

echo ""

# ------------------------------------------------------------------------------
# Builder Cache
# ------------------------------------------------------------------------------

# This is behind a flag because it's a very time-consuming step.
# You may need to delete the builder cache in scenarios where you've
# used build secrets (--secret), you've changed the contents on disk
# of that secret, but docker isn't picking up the changes.
if [ ${DELETE_BUILDER_CACHE} = 1 ]; then
  echo "Removing builder cache..."
  docker builder prune --all --force
  docker system prune --all --volumes --force
  echo ""
fi

echo "Done"