algo/roles/google_cloud/tasks/main.yml

- set_fact:
    credentials_file_lookup: "{{ lookup('file', '{{ credentials_file }}') }}"
    ssh_public_key_lookup: "{{ lookup('file', '{{ ssh_public_key }}') }}"

- name: "Creating a droplet..."
  gce:
    instance_names: "{{ server_name }}"
    zone: "{{ zones[zone] }}"
    machine_type: n1-standard-1
    image: ubuntu-1604
    service_account_email: "{{ credentials_file_lookup.client_email  }}"
    credentials_file: "{{ credentials_file  }}"
    project_id: "{{ credentials_file_lookup.project_id  }}" 
    metadata: '{"sshKeys":"root:{{ ssh_public_key_lookup }}"}'
  register: google_vm
  
- name: Add the droplet to an inventory group
  add_host:
    name: "{{ google_vm.instance_data[0].public_ip}}"
    groups: vpn-host
    ansible_ssh_user: ubuntu
    ansible_python_interpreter: "/usr/bin/python2.7"
    dns_enabled: "{{ dns_enabled }}"
    auditd_enabled: " {{ auditd_enabled }}"

- name: Wait for SSH to become available
  local_action: "wait_for port=22 host={{ google_vm.instance_data[0].public_ip }} timeout=320"