Strongly welcome!
There is a certain site consisting of frontend, backend, database - the whole project is deployed to docker swarm via the stackfile. There are also tests for java; and jenkins, who runs them, goes to the webmord and, of course, test. All this lives separately and does not intersect with each other.
Question: How can I combine all this? That is, I want to create in jenkins item, which at startup, merges the sources and stack.yaml from the git, raises a local copy of the site, downloads the sources of the tests and runs the tests on the local version of the site.