Dockerfile

# Dockerfile extending the generic Node image with application files for a
# single application.
FROM gcr.io/google_appengine/nodejs

# Check to see if the the version included in the base runtime satisfies
# 9.x, if not then do an npm install of the latest available
# version that satisfies it.
RUN /usr/local/bin/install_node 9.x

# You have to specify "--unsafe-perm" with npm install
# when running as root.  Failing to do this can cause
# install to appear to succeed even if a preinstall
# script fails, and may have other adverse consequences
# as well.
RUN npm install --unsafe-perm --global yarn

#copy the app in
COPY . /app/

#we install all the dependencies, including the dev ones
RUN yarn install --production=false || \
  ((if [ -f yarn-error.log ]; then \
      cat yarn-error.log; \
    fi) && false)

CMD yarn start