Using alpine image about active_workflow

[vidas]

Hi! Thanks for showing interest in ActiveWorkflow!

I have benchmarked alpine sometime before and found that there is a considerable difference in image size, but not so much in memory consumption (I've tested it on x64 though). I see no harm in switching postgres to an alpine based image. The provided docker-compose.yml is intended for small single-machine installations and testing, serious production deployments most likely use managed database or some custom configuration anyway.

I'll implement the change myself, no need for PR. Thank you for the offer and good luck deploying on a raspberry! (RPi is not officially supported (or targeted) deployment option, but constrained environments are often a good check for bloat.)

As for ActiveWorkflow itself, lowering memory consumption is on the roadmap, but I doubt alpine would be a reasonable option in the near future. The image size is dominated by dependencies. Also, many gems do (may) require a wide array of -dev packages for building.

[hdf1996]

Sounds good! Will mark the issue as closed :)