Dockerfile with packrat

Dockerfile

FROM rocker/r-ver:3.5.1

RUN apt-get update && apt-get install -y --no-install-recommends \
  ## needed for git2r
  libssl-dev \
  ## needed for curl
  libcurl4-openssl-dev


ENV APP_DIR /app
WORKDIR $APP_DIR

## install2.r will pull packrat from MRAN with the chosen R version
RUN install2.r -d TRUE packrat
COPY packrat $APP_DIR/packrat
RUN R -e "packrat::restore()"

COPY app $APP_DIR/app

CMD R -e 'source("packrat/init.R");options(shiny.autoreload=T,shiny.port=3838,shiny.host="0.0.0.0");shiny::runApp("app")'