Applying multiple tags to an image
You can apply the latest tag to a newly built image and add another tag that references a specific version.
For example, to tag an image both as whenry/fedora-jboss:latest and
whenry/fedora-jboss:v2.1, use the following:
docker build -t whenry/fedora-jboss:latest -t whenry/fedora-jboss:v2.1 .
