docker image ci/cd

[mcandre]

As an engineer, I want to publish Docker images with CI/CD, in order to ensure that image artifacts keep up to date with code changes.

Use either Docker Hub's builtin CI/CD, or GitHub Actions. The latter may require Docker in Docker, however it is more portable, supports tug, and has known notification behavior in the event of an error.

Projects:

• snek
• any other toys with published Docker images