Thank you for your excellent work which I have used for my recent blog. I think that it
could be interesting for you since I could demonstrate that the integration of a Spark master node, RStudio and Shiny servers is possible in a docker image. An indefinite number of Spark worker nodes moreover can be deployed using the same image. In addition, a
toy example of a Shiny application powered by SparkR is included. And all for free using Carina!
Take a look if you find it interesting at https://angelsevillacamins.github.io/
Feedback would be highly appreciated