Ubuntu 20.04 Auto-install custom storage layout for multiple volume groups

cinder-volumes-ubuntu-autoinstall.yml

#cloud-config
autoinstall:
  version: 1
  identity:
    hostname: ${HOSTNAME}.bitvizor.com
    password: "${ADMIN_PASSWORD}"
    username: ${ADMIN_USER}
  ssh:
    install-server: true
  apt:
    geoip: true
  storage:
    swap:
        size: 0
    config:
      - type: disk
        id: disk0
        path: /dev/vda
        preserve: false
        grub_device: true
        wipe: superblock-recursive
        preserve: false
        ptable: gpt
      - type: partition
        id: disk0-part0
        device: disk0
        flag: bios_grub
        size: 1MB
      - type: partition
        id: disk0-part1
        device: disk0
        size: 10G
      - type: partition
        id: disk0-part2
        size: -1
        device: disk0
      - type: lvm_volgroup
        id: vg0
        name: vg0
        devices:
          - disk0-part1
      - type: lvm_volgroup
        id: vg1
        name: cinder-volumes
        devices:
          - disk0-part2
      - type: lvm_partition
        id: lvm_part0
        name: root-parition
        volgroup: vg0
        size: 100%
      - type: format
        id: lvm_part0-fs
        fstype: ext4
        label: root
        volume: lvm_part0
      - id: lvm_part0-fs-mount0
        type: mount
        path: /
        device: lvm_part0-fs

Parition_Layout.txt

Device: /dev/vda
Partition Table: gpt

/dev/sda1 - 1MB - for UEFI/Bootloader
/dev/sda2 - 10G - root partition
/dev/sda3 - Remaining Space - for cinder-volumes

LVM Volume Groups:

vg0 (vg0) -> /dev/sda2 -> /
cinder-volumes (vg1) -> /dev/sda3 -> (no mount point)