docker-compose for node alpine with Yarn + postgresql db

database-variables.env

POSTGRES_DB=xyzdb
POSTGRES_USER=xyzuser
POSTGRES_PASSWORD=xyzpassword

db_create_db_dump.sh

#!/usr/bin/env bash

POSTGRES_DB=xyzdb
POSTGRES_USER=xyzuser
export PGPASSWORD=xyzpassword
pg_dump -h localhost -U $POSTGRES_USER $POSTGRES_DB > dump.sql

db_restore_db_dump.sh

POSTGRES_DB=xyzodb
POSTGRES_USER=xyzuser
export PGPASSWORD=xyzpassword

dropdb -U $POSTGRES_USER -e --if-exists $POSTGRES_DB
createdb -U $POSTGRES_USER $POSTGRES_DB
cat ./dump.sql | psql -U $POSTGRES_USER --dbname=$POSTGRES_DB

docker-compose.yml

version: '3'
volumes:
  # We'll define a volume that will store the data from the postgres databases:
  postgres-data:
    driver: local
services:
  billexo-graphql-server:
    build: .
    tty: true
    stdin_open: true
    links:
      - "billexo-db-server:billexodbserver"
    volumes:
      - ./:/billexo-graphql-server
    ports:
      - "3000:3000"
  billexo-db-server:
    image: postgres
    env_file:
        - database-variables.env
    volumes:
      - postgres-data:/var/lib/postgresql/data
      - ./db:/root/db
    ports:
      - "5432:5432"

Dockerfile

FROM node:7.10.0-alpine
RUN apk add --update curl
RUN apk add --update tar
RUN rm -rf /var/cache/apk/*
RUN curl -o- -L https://yarnpkg.com/install.sh | /bin/sh
WORKDIR /billexo-graphql-server
CMD ["/bin/sh"]