The v1.0.0-alpha.2 build seems to be shutting down in docker after 5 hours. If you’ve seen this, the current workaround is to set PS_BOUNCE_MINUTES=0.
This should be addressed in the next v1.0.0 build, but if you find PS_BOUNCE_MINUTES doesn’t fix this issue for you, please reply with details or send me debug logs via email and I’ll take a look.