* Do not run DAST on the default branch if
    DAST_DISABLED_FOR_DEFAULT_BRANCH is true
* Launch an environment for DAST to use on the default branch
* Stop the environment automatically
* Deploy app to production as soon as test job has finished
  * This allows for faster deploys, since DAST can take a
      long time to run.

https://gitlab.com/gitlab-org/gitlab/issues/5503