From https://docs.docker.com/compose/startup-order/

docker-compose-node.yaml

version: '2'
services:
 service_1:
   build:
     context: .
     dockerfile: Dockerfile
   entrypoint: '/bin/bash'
   command: './start_dev.sh'
   env_file:
     - ./development.env
   volumes:
     - .:/home/app/code
     - /home/app/code/node_modules
     - /home/app/code/bower_components
   ports:
     - 3000

docker-entrypoint.sh

#!/bin/bash

. /tashome/tasrtenv.sh
if [ ! -f "/tas-initialized" ]; then #check whether the TAS is initialized.
    echo 'Initializing tas'
    while ! mysqladmin ping -h$DB --silent; do
        sleep 1
    done
    no "no" | tasdbinit.sh; # prompts
    /xx/abs-initdb.sh;
    #mysql -h$TAS_DB -u$TAS_DB_USER -p$TAS_DB_PASSWORD $MYSQL_DATABASE < x.sql;
    touch "/tas-initialized";
    echo 'TAS initialized';
fi

# prevent process exit.
while true; 
    do sleep 1000; 
done

dockerfile-node

FROM node:6.3.0
RUN mkdir -p /home/app/code/node_modules
WORKDIR /home/app/code
ENV NODE_ENV development
RUN echo '{ "allow_root": true }' > /root/.bowerrc
COPY package.json /home/app/code/
RUN npm cache clean && \
  npm install --silent --progress=false&& \
  apt-get clean
COPY bower.json /home/app/code/
RUN ./node_modules/bower/bin/bower install --production --silent --config.interactive=false
COPY . /home/app/code

new_gist_file_4

_

wait_for_service_start.sh

#!/bin/bash

set -e

host="$1"
shift
cmd="$@"

until psql -h "$host" -U "postgres" -c '\l'; do
  >&2 echo "Postgres is unavailable - sleeping"
  sleep 1
done

>&2 echo "Postgres is up - executing command"
exec $cmd