Functioning playbook to create a VM on digital ocean. Substitute your ssh_key_ids and image_id and run as is. You will need dopy installed.

do_playbook.yml

---
- hosts: 127.0.0.1
  connection: local
  gather_facts: false
  tasks:
    - name: start a droplet
      local_action: digital_ocean
          state=present
          ssh_key_ids=#,#,#
          command=droplet
          name=#validdnsname#
          virtio=yes
          wait=yes
          unique_name=yes
          size_id=66
          region_id=3
          image_id=####
          wait_timeout=500
      register: digital_ocean
    - debug: msg="ID = {{ digital_ocean.droplet.id }}"
    - debug: msg="IP = {{ digital_ocean.droplet.ip_address}}"