kitchen

#!/usr/bin/env sh

CONTEXT=$PWD
PROJECT=$(basename "$PWD")
HELPMSG=$(cat <<-END
Build a Docker image and run disposable containers.

COMMANDS
bake [TAG]              Build $PROJECT:TAG image
clean                   Delete all $PROJECT containers and Docker leftovers
debug TAG SCRIPT [ARGS] Debug Python SCRIPT in a $PROJECT:TAG container
eightysix [TAG]         Delete $PROJECT:TAG containers, image, and leftovers
freeze [TAG]            Update requirements.txt and rebuild $PROJECT:TAG
menu                    Show all available Docker objects
runit [TAG] [CMD]       Run CMD in an interactive $PROJECT:TAG container
serve [TAG] [CMD]       runit [TAG] [CMD] with $CONTEXT mounted as /context

DEFAULTS
TAG 'latest'
CMD See $CONTEXT/Dockerfile

EXAMPLES
./kitchen bake monty
./kitchen freeze monty
./kitchen serve monty
./kitchen serve monty python -m test
END
)

bake() {
  touch requirements.txt &&
  docker build --tag "$PROJECT:${1:-latest}" "$CONTEXT" &&
  docker image prune --force
}
clean() {
  docker ps --quiet --filter ancestor="$PROJECT" | xargs docker rm --force &&
  docker system prune --force
}
debug() {
  serve "$1" python -m pdb "${@:2}"
}
eightysix() {
  clean &&
  docker rmi --force "$PROJECT:${1:-latest}" &&
  docker image prune --force
}
freeze() {
  docker run --rm "$PROJECT:${1:-latest}" pip freeze > requirements.txt &&
  bake "$1"
}
menu() {
  echo "---- Images ----" && docker image ls | sort
  echo "---- Volumes ----" && docker volume ls | sort
  echo "---- Networks ----" && docker network ls
  echo "---- Containers ----" && docker ps --all
}
runit() {
  docker run --rm --interactive --tty "$PROJECT:${1:-latest}" "${@:2}"
}
serve() {
  docker run --rm --interactive --tty \
    --hostname "${PROJECT}" \
    --volume "${CONTEXT}:/context:delegated" \
    "$PROJECT:${1:-latest}" \
    "${@:2}"
}

if [ $# -eq 0 ]; then echo "$HELPMSG"; else "$@"; fi