No matter how you like to participate in developer communities, Pulumi wants to meet you there. If you want to meet other Pulumi users to share use-cases and best practices, contribute code or documentation, see us at an event, or just tell a story about something cool you did with Pulumi, you are part of our community.

Pulumi Community

Not currently - you would need to build it out of band of `pulumi update`.  But a library similar (but likely much simpler than) `@pulumi/docker` could easily be built to take care of doing the builds as part of the deployment itself.