Dockerfile: dbase provision when docker stack being established

Dockerfile

# ... YOUR Dockerfile definition here

# wait for dependecy ready
RUN curl -s https://raw.githubusercontent.com/eficode/wait-for/master/wait-for -o /tmp/wait-for
RUN chmod 754 /tmp/wait-for
RUN apt-get update
RUN apt-get install -y netcat

# docker inspect --format="{{json .State.Health}}" sakani-projects-graphql
HEALTHCHECK --start-period=30s --retries=10 --timeout=1m CMD \
  cd /app; [ -e dbprovision.completed ] || \
  /tmp/wait-for $MONGODB_HOST -- \
  rails db:create RAILS_ENV=development && \
  touch dbprovision.completed