Run pipeline with different environment variables sets

It would be great to have possibility to run pipeline (or some steps) several times for each of environment variables sets.

For example, I want to run my pipeline "deploy" for 50 different host/user/password sets.
Or same for 50 different values of "DEPLOY_DIR" environment variable.

Of course, I could just copypaste list of scripts 50 times with different values, but it would be a nightmare when I need to make any modifications.