Add DAST security report CI job
Add DAST security report CI job
Part of https://gitlab.com/gitlab-org/gitter/webapp/issues/2118
Previous MR that enabled other security report jobs, https://gitlab.com/gitlab-org/gitter/webapp/merge_requests/1375
Dev notes
Accessing a Docker container service from another container service (hosts and network),
Pass variables to services,
Edited by Eric Eastwood