Add more options to enable ansible testing feature

1. Specified volume size for boot from volume server scenario.
2. Create port in default security group or no security group.

Change-Id: If2ccf726f518a5d6ba72bece09504c0f005a08f1
Related-Patch: https://review.openstack.org/#/c/582459/

openstack/tests/ansible/roles/port/defaults/main.yml

@@ -3,3 +3,4 @@ network_external: true
 subnet_name: ansible_port_subnet
 port_name: ansible_port
 secgroup_name: ansible_port_secgroup
+no_security_groups: True

openstack/tests/ansible/roles/port/tasks/main.yml

@@ -14,20 +14,20 @@
      network_name: "{{ network_name }}"
      cidr: 10.5.5.0/24
 
-- name: Create port (no security group)
+- name: Create port (no security group or default security group)
   os_port:
      cloud: "{{ cloud }}"
      state: present
      name: "{{ port_name }}"
      network: "{{ network_name }}"
-     no_security_groups: True
+     no_security_groups: "{{ no_security_groups }}"
      fixed_ips:
        - ip_address: 10.5.5.69
   register: port
 
 - debug: var=port
 
-- name: Delete port (no security group)
+- name: Delete port (no security group or default security group)
   os_port:
      cloud: "{{ cloud }}"
      state: absent
@@ -66,7 +66,7 @@
      state: present
      name: "{{ port_name }}"
      network: "{{ network_name }}"
-     no_security_groups: True
+     no_security_groups: "{{ no_security_groups }}"
      allowed_address_pairs:
        - ip_address: 10.6.7.0/24
      extra_dhcp_opts:

openstack/tests/ansible/roles/server/defaults/main.yaml

@@ -2,3 +2,4 @@ server_network: private
 server_name: ansible_server
 flavor: m1.tiny
 floating_ip_pool_name: public
+boot_volume_size: 5

openstack/tests/ansible/roles/server/tasks/main.yml

@@ -77,7 +77,7 @@
      network: "{{ server_network }}"
      auto_floating_ip: false
      boot_from_volume: true
-     volume_size: 5
+     volume_size: "{{ boot_volume_size }}"
      terminate_volume: true
      wait: true
   register: server