split git from gitweb.tpo

vineale regularly runs into OOM situations, and it's always cgit.cgi that's at fault.

We might want to split off git.tpo so the gitweb thing going crazy does not affect proper clients.

added component::internal services/tor sysadmin team owner::tpa priority::medium severity::normal status::new type::defect labels

i opened #32133 (moved) about the gitweb performance problems on vineale. even if we split git.tpo out of gitweb, we would still need to fix the performance problem so i figured it was worth treating it separately.

now, that said, how would we go around splitting those two? we'd still need a shared filesystem of some sort, no? NFS? read-only DRBD?

git (ro) is push-synced from git-rw.

There's no reason why git-rw couldn't push to both if we wanted.

mentioned in issue #32133 (moved)