Run functional devstack job on ansible collection

Porting of job that was running on patches in Ansible.

Change-Id: Ifa5a6b40d6a0f1de9f2cbc917a55c2d0e8ac421d

ci/roles/volume/tasks/main.yml

@@ -0,0 +1,17 @@
+---
+- name: Create volume
+  openstack.cloud.os_volume:
+     cloud: "{{ cloud }}"
+     state: present
+     size: 1
+     display_name: ansible_volume
+     display_description: Test volume
+  register: vol
+
+- debug: var=vol
+
+- name: Delete volume
+  openstack.cloud.os_volume:
+     cloud: "{{ cloud }}"
+     state: absent
+     display_name: ansible_volume