ansible/playbooks/do_hosts.yml

# Using keyed groups and compose for hostvars
plugin: community.digitalocean.digitalocean
api_token: "{{ lookup('ansible.builtin.env', 'DO_API_TOKEN') }}"
attributes:
  - id
  - name
  - memory
  - vcpus
  - disk
  - size
  - image
  - networks
  - volume_ids
  - tags
  - region
keyed_groups:
    - key: do_tags | lower
    prefix: ''
    separator: ''
compose:
  ansible_host: do_networks.v4 | selectattr('type','eq','public')
    | map(attribute='ip_address') | first
  class: do_size.description | lower
  distro: do_image.distribution | lower
filters:
  - '"ansible" in do_tags'