Update RStudio in Docker container

I mainly run R through a Docker session. Recently. I wanted to try the latest version of RStudio with its new visual markdown editor. I am happy to say I was successful! Here are the steps:

The following steps will be done via a terminal interface. To start that:
docker exec -ti <Rocker-Image-Name> bash

1. Download the lastest rstudio version:
   wget https://download2.rstudio.org/server/...bionic/amd64/rstudio-server-<version>.deb
2. Stop the current rstudio server.
   • Save any open files / projects
   • suspend the current server:
     sudo rstudio-server suspend-all
   • shutdown the current server:
     sudo rstudio-server offline
3. Remove the current rstudio server (this removes the server program … not the data).
   • sudo apt-get remove rstudio-server
   • rstudio-server online
4. Install the new server and start
   • Install via gdebi^[If gdebi is not installed it can be installed via sudo apt-get install gdebi-core].
     sudo gdebi rstudio-server-version.deb
   • Start the server
     sudo rstudio-server online

Instructions adapted from:

• https://rstudio.com/products/rstudio/download-server/debian-ubuntu/
• https://support.rstudio.com/hc/en-us/articles/216079967-Upgrading-RStudio-Server