I don't recall any problems with pod placement, mostly because the machines are big enough to have ample room left over. We did move our ELK stack to a separate

I don't recall any problems with pod placement, mostly because the machines are big enough to have ample room left over. We did move our ELK stack to a separate VM-backed k8s to be able to scale it better, but that was mostly because the storage box of the bare-metal cluster didn't have enough space to store more than a week's worth of logs.