Does the bt hub let you turn off DHCP? I had a similar issue with my ISP router, but it let me turn off dhcp and then I ran pihole which can run its own DHCP server.

Then, the DHCP server can tell all clients to use your preferred DNS server.

I haven’t used adguard, but it can probably do the same. If not, you can run a DHCP client on the same box probably.

I’m curious which part you think is overkill and how you would redo this? I have a proxmox cluster and run docker amongst other things, but haven’t set up any sort of high availability.

I don’t need live migrations, but something that could help with load balancing and reducing any potential downtime if a host fails would be great.