sbt package1/run => run play-framework
sbt package1/docker:publishLocal => will create docker image of the play application.
sbt package1/docker:clean => will remove the docker image.
sbt package1/playUpdateSecret will generate a new secret play web-application and replace it with the old secret in the application.conf.
If you have a dockerhub account you can update this environment variable (DOCKERHUB_USER) in your endpoint. then you will be able to publish the docker image to your repo by this task:
sbt package1/docker:publish.
You'll need to create a docker repository that equal to the sub-project name => name.value.
sbt package2/run => run application
sbt package2/docker:publishLocal => will create docker image application.
sbt package2/docker:clean => will remove the docker image.
sbt package2/docker:publish => publish docker image to repo.