This tool can be used to test DB upgrades between two Fleet versions.

To run the tests, you need to specify the "from" and "to" versions, for example:

FLEET_VERSION_A=v4.16.0 FLEET_VERSION_B=v4.18.0 go test ./test/upgrade

Ensure that Docker is installed with Compose V2. To check if you have the correct version, run the following command

docker compose version
Docker Compose version v2.6.0