Dockerfile.template

# base-image for node on any machine using a template variable,
# see more about dockerfile templates here: https://www.balena.io/docs/learn/develop/dockerfile/ 
# and about balena base images here: https://www.balena.io/docs/reference/base-images/base-images/ 
# Note the node:slim image doesn't have node-gyp
FROM balenalib/%%BALENA_MACHINE_NAME%%-node:9-stretch-build

# use `install_packages` if you need to install dependencies,
# # for instance if you need git, just uncomment the line below.
# # RUN install_packages git

# Defines our working directory in container
WORKDIR /usr/src/app

# Copies the package.json first for better cache on later pushes
COPY package.json package.json

# This install npm dependencies on the balena build server,
# # making sure to clean up the artifacts it creates in order to reduce the image size.
RUN JOBS=MAX npm install --production --unsafe-perm && npm cache verify && rm -rf /tmp/

# This will copy all files in our root to the working  directory in the container
COPY . ./

# Enable udevd so that plugged dynamic hardware devices show up in our container.
ENV UDEV=1

# server.js will run when container starts up on the device
CMD ["npm", "start"]