I have four side projects which are my hobby (NOT A JOB! NOT A WORK!).
I work on that at night, when I have time and when I want to.
What I need is a Jenkins instance (or something like that for CI (continuous integration) and maybe also CD (continuous delivery)) but free. Maybe like free heroku dyno which is amazing: I don't work everyday on it, I work sometimes, when I have time and, like my free dyno on Heroku it's amazing the auto-sleep and go on just when I need it.
Is there something for Jenkins out there but free, with auto-sleep?
Jenkins on Heroku is still an option given the ephemeral state of dyno on Heroku? Is Jenkins still saving config on filesystem?
I can't afford to pay something for that because it's just an experiment.