Proxmox VE — Vitastor

To enable Vitastor support in Proxmox Virtual Environment (6.4-8.1 are supported):

Add the corresponding Vitastor Debian repository into sources.list on Proxmox hosts: bookworm for 8.1, pve8.0 for 8.0, bullseye for 7.4, pve7.3 for 7.3, pve7.2 for 7.2, pve7.1 for 7.1, buster for 6.4
Install vitastor-client, pve-qemu-kvm, pve-storage-vitastor (* or see note) packages from Vitastor repository
Define storage in /etc/pve/storage.cfg (see below)
Block network access from VMs to Vitastor network (to OSDs and etcd), because Vitastor doesn’t support authentication
Restart pvedaemon: systemctl restart pvedaemon

/etc/pve/storage.cfg example (the only required option is vitastor_pool, all others are listed below with their default values; vitastor_ssd is Proxmox storage pool id):

vitastor: vitastor_ssd
    # pool to put new images into
    vitastor_pool testpool
    # path to the configuration file
    vitastor_config_path /etc/vitastor/vitastor.conf
    # etcd address(es), OPTIONAL, required only if missing in the configuration file
    vitastor_etcd_address 192.168.7.2:2379/v3
    # prefix for keys in etcd
    vitastor_etcd_prefix /vitastor
    # prefix for images
    vitastor_prefix pve/
    # use NBD mounter (only required for containers)
    vitastor_nbd 0

* Note: you can also manually copy patches/VitastorPlugin.pm to Proxmox hosts as /usr/share/perl5/PVE/Storage/Custom/VitastorPlugin.pm instead of installing pve-storage-vitastor.