Question
Does a container instantiated from bioconductor_docker:RELEASE_X_Y also pull CRAN packages from reproducible image (e.g. via MRAN) and if not how do I accomplish this?
Motivation
I'm building an image with both Bioconductor and CRAN packages and want versions of both repositories pinned to a specific date.
Background
The Bioconductor docker documentation mentions rocker/rstudio.
However, unlike rocker/r-ver, the above images do not seem to be pinned to any reproducible CRAN image (e.g. MRAN in the case of rocker/r-ver)