Dockerfile

FROM rocker/r-ver:3.5.1

RUN apt-get update -qq && apt-get -y --no-install-recommends install \
  libxml2-dev \ 
  libssl-dev \
  libcurl4-openssl-dev \
  zlib1g-dev \
  && . /etc/environment \
  && install2.r --error \
    --repos 'http://www.bioconductor.org/packages/release/bioc' \
    --repos $MRAN \ 
    --deps TRUE \
    plumber \
  && install2.r --error \
    --repos $MRAN \ 
    devtools
# As with the tidyverse rocker image --deps TRUE downloads all of plumber's 
# Suggests dependencies. This has testthat, XML, rmarkdown, PKI and base64enc
# most of which sound useful for an API service.
# devtools is added to make installing packages later easier
# @TODO. Should we add ggplot2 seeing as many services will want that?

# Add a non-root user who will launch the apps
RUN useradd plumber \
	&& mkdir /home/plumber \
	&& chown plumber:plumber /home/plumber \
	&& addgroup plumber staff
  
# Add some default app. @TODO Should plumbapp.sh not be an R script?
ADD demo.R /apps/demo.R
ADD plumbapp.sh /plumbapp.sh
RUN chmod 700 /plumbapp.sh \
  && chgrp -R staff /apps

# Plumb your app into 8000
EXPOSE 8000

CMD ["/plumbapp.sh", "/apps/demo.R"]