Help with LVM over iSCSI on a 3 node Proxmox cluster

I have a cluster with 3 nodes, each node has a second disks that I want to use to enable iSCSI then LVM on top of it, to be used as Shared storage for the cluster, similar to what Ceph will do, but I expect to be lighter on resources and logging.

I haven't been able to find a good guide on how to install and configure Open-iSCSI on each node, then enable LVM on top, and use the 3 disks as a shared storage for the cluster.