RStudio Connect stores internal data in a combination of database (either SQLite or PostGres) and the file system. However, these locations are meant for internal storage only.
If you want to deploy a Shiny App or RMarkdown (or any other content) you should create your own shared locations for data. This can be either:
- a shared file location on the server
- a file location on shared network storage
- external storage, e.g. Amazon S3 or Azure blob store
- a database
If the amount of data you have is small, e.g. a small csv file, you can upload this with your app, but it will not be available to other apps.
You can find some best practises in the following material: