[andyshinn]

The Docker Hub does also have a mode called "Automated Builds" which will pull down the repository, build an image based on the Dockerfile and push it. However, you do have to pick one or the other (you cannot push your own image to a repository configured as an Automated Build).

[stdbrouw]

But you can manually trigger a build when automated builds are enabled, for rare cases when the automated trigger didn't do what you wanted. Works really well in practice.