Fly multi-region-databases Phoenix/Elixir Example

Using Fly.io to host a Phoenix web app that’s connected to multiple Postgres read-replica databases (1 read/write master and a number of read-only replicas).

Check out this blog post for a detailed explanation.

Usage

From the my_app folder:

flyctl launch

Note: the above command will create an app and fail the first time. To fix it:

• create a database (refer to blog post)
• set a base secret (refer to fly elixir setup docs)