Run an aliased or a regular command on a docker container

drun.sh

#!/bin/bash

set -e
set -u
set -o pipefail

CONTAINER_OR_ALIAS=${1:-""}
COMMAND=${2:-""}
ARGUMENTS="${@:3}"

ALIASES=(
    "build:docker build -t jakzal/php:1.0 ."
    "run:docker_run"
    "bash:docker_run bash"
    "composer:docker_run composer"
    "phpunit:docker_run ./vendor/bin/phpunit"
    "behat:docker_run ./vendor/bin/behat"
    "web:docker exec -it web"
    "db:docker exec -it db"
    "deploy:docker-compose -f var/docker/deploy/docker-compose.yml run --rm deploy"
)

function docker_run() {
    docker run -it --rm -v $(pwd):/project -v $HOME/.composer/cache:/root/.composer/cache -w=/project -p 8000:8000 jakzal/php:1.0 "$@"
}

function tests() {
    docker_run bash -c './vendor/bin/phpunit && ./vendor/bin/behat --format=progress'
}

function help() {
    echo -n "Usage: $0 "
    { printf "%s\n" "${ALIASES[@]}" | sed -e 's/\([^:]*\):.*/\1/g'; compgen -A function; } | tr "\\n" "|" | sed 's/|$//'
}

if [ -z "$CONTAINER_OR_ALIAS" ]; then
  help
  exit 1
fi

for alias in "${ALIASES[@]}" ; do
    KEY=${alias%%:*}
    VALUE=${alias#*:}
    if [[ "$CONTAINER_OR_ALIAS" == "$KEY" ]]; then
        DOCKER_COMMAND="$VALUE"
    fi
done

if [[ -z ${DOCKER_COMMAND+x} && "$(type -t $CONTAINER_OR_ALIAS)" == "function" ]]; then
    DOCKER_COMMAND=$CONTAINER_OR_ALIAS
fi

if [ -z ${DOCKER_COMMAND+x} ]; then
    help
    exit 1
fi

$DOCKER_COMMAND $COMMAND $ARGUMENTS

Examples:

drun web bash
drun web ./vendor/bin/phpunit -c app