Pushing to Dockerhub

To push built containers to Dockerhub:

• Dockerhub provides a webhook endpoint (listener) for any project that you set up on Dockerhub
• You should set up a webhook in your Github repository that will send a message to the Dockerhub endpoint
• Once that's done, and your Dockerhub project is associated with your Github repo, any commits to your Github repo will trigger Dockerhub to re-make your container

To control which branches and tags are built:

• Log in to dockerhub
• Click the project
• Click the "Build Settings" tab
• Specify whether you want to build a branch or a tag
• Specify its name
• Save

Also see Git/Tags