Perform "docker run" within pipeline

[Peter Roth]

We have a project that conducts automated tests as part of the build (via maven in our case).  As part of these tests we launch docker containers to setup the tests (run postgresql, run our web API that is under test, etc).  I don't believe this is possible via pipeline, what do you recommend we change to support this type of workflow.  

It is very valuable that this identical build/test is possible on a developer machine, and right now with our current setup it is (the developer machine does of course need docker installed).