Add DigitalOcean playbook to create VM

tests/cloud_playbooks/create-do.yml

+---
+- hosts: localhost
+  become: false
+  gather_facts: no
+  vars:
+    cloud_machine_type: g1-small
+    mode: default
+
+  tasks:
+    - name: replace_test_id
+      set_fact:
+        test_name: "{{test_id |regex_replace('\\.', '-')}}"
+
+    - set_fact:
+        instance_names: >-
+          {%- if mode in ['separate', 'ha'] -%}
+          ["k8s-{{test_name}}-1", "k8s-{{test_name}}-2", "k8s-{{test_name}}-3"]
+          {%- else -%}
+          ["k8s-{{test_name}}-1", "k8s-{{test_name}}-2"]
+          {%- endif -%}
+
+    - name: Create DO instances
+      digital_ocean:
+        unique_name: yes
+        api_token: "{{ lookup('env','DO_API_TOKEN') }}"
+        command: "droplet"
+        image_id: "{{ cloud_image }}"
+        name: "{{ item }}"
+        private_networking: no
+        region_id: "{{cloud_region}}"
+        size_id: 2gb
+        ssh_key_ids: "6536865"
+        state: present
+        wait: yes
+      register: droplets
+      with_items: "{{instance_names}}"
+
+    - debug:
+        msg: "{{droplets}}, {{inventory_path}}"
+
+    - name: Template the inventory
+      template:
+        src: ../templates/inventory-do.j2
+        dest: "{{ inventory_path }}/inventory-do.cfg"
+
+    - name: Wait for SSH to come up
+      wait_for: host={{item.droplet.ip_address}} port=22 delay=10 timeout=180 state=started
+      with_items: "{{droplets.results}}"

tests/templates/inventory-do.j2

+{% for instance in droplets.results %}
+node{{loop.index}} ansible_ssh_host={{instance.droplet.ip_address}}
+{% endfor %}
+
+{% if mode is defined and mode == "separate" %}
+[kube-master]
+node1
+
+[kube-node]
+node2
+
+[etcd]
+node3
+
+[vault]
+node3
+{% elif mode is defined and mode == "ha" %}
+[kube-master]
+node1
+node2
+
+[kube-node]
+node3
+
+[etcd]
+node2
+node3
+
+[vault]
+node2
+node3
+{% else %}
+[kube-master]
+node1
+
+[kube-node]
+node2
+
+[etcd]
+node1
+
+[vault]
+node1
+{% endif %}
+
+[k8s-cluster:children]
+kube-node
+kube-master