try resource groups for network bringup
We end up with failures bringing up some nodes when all three simluations/sites get a CI pipeline run. All three child pipelines eventually end up at the network-bringup job at about the same time and compete for resources. Added a resource_group for this job so they have to do that step one at a time.
It's slower, but will be more portable and reliable and scalable.
Edited by Justin Betz