### What changes were proposed in this pull request?
this is the skeleton of the ansible used to configure jenkins workers in the riselab/apache spark build system
### Why are the changes needed?
they are not needed, but will help the community understand how to build systems to test multiple versions of spark, as well as propose changes that i can integrate in to the "production" riselab repo. since we're sunsetting jenkins by EOY 2021, this will potentially be useful for migrating the build system.
### Does this PR introduce _any_ user-facing change?
no
### How was this patch tested?
ansible-lint and much wailing and gnashing of teeth.
Closes#32178 from shaneknapp/initial-ansible-commit.
Lead-authored-by: shane knapp <incomplete@gmail.com>
Co-authored-by: shane <incomplete@gmail.com>
Signed-off-by: shane knapp <incomplete@gmail.com>
