This is a terraform module to deploy a Mastodon instance and it's dependencies on GKE Autopilot + Cloudsql + Memorystore Redis (optional) and Elasticsearch (it was hard to run it on Autopilot.
The costs are around 60$/monthly thanks also to the spot nodes instead of regular ones, anyway you can tweak it as you prefer.
Not yet finished, but ready to be published on the wild for comments.