docker-dev: poor man dev workflow for dockerized apps

docker-dev.sh

#!/bin/bash

# Copyright 2014 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# usage: docker-dev [DIR]
set -ex
DIR=$(readlink -f ${1:-$(pwd)})
APP=$(basename $DIR)
PORT=${PORT:-8080}
$(boot2docker shellinit)
IP=$(boot2docker ip)
while true
do
docker kill docker-dev-$APP || true
docker rm docker-dev-$APP || true
docker build -t $APP .
docker run --name docker-dev-$APP -p $PORT:$PORT -d $APP
echo "$APP serving on http://$IP:$PORT"
inotifywait .
done