Delegate info gathering to setup host

We are not supposed to have neither openstack client nor clouds.yaml file
in octavia containers and all openstack commands are expected
to be executed on the setup (utility) host.

Change-Id: I93398ef72be3e423c721f92e4bf9077cd5e08d05

tasks/octavia_post_install.yml

@@ -43,6 +43,9 @@
   with_items: "{{ octavia_user_haproxy_templates }}"
 
 - name: Set octavia_nova_flavor_uuid if it is not already set
+  delegate_to: "{{ octavia_service_setup_host }}"
+  vars:
+    ansible_python_interpreter: "{{ octavia_service_setup_host_python_interpreter }}"
   when:
     - octavia_nova_flavor_uuid is not defined
   block:
@@ -62,14 +65,15 @@
       register: get_flavor_info
       until: get_flavor_info is success
       retries: 5
-      vars:
-        ansible_python_interpreter: "{{ octavia_bin }}/python"
 
     - name: Set Octavia flavor UUID fact
       set_fact:
         octavia_nova_flavor_uuid: "{{ get_flavor_info.openstack_flavors[0].id }}"
 
 - name: Set octavia_neutron_management_network_uuid if it is not already set
+  delegate_to: "{{ octavia_service_setup_host }}"
+  vars:
+    ansible_python_interpreter: "{{ octavia_service_setup_host_python_interpreter }}"
   when:
     - octavia_neutron_management_network_uuid is not defined
     - octavia_neutron_management_network_name is defined
@@ -91,8 +95,6 @@
       until: get_net_info is success
       retries: 5
       delay: 10
-      vars:
-        ansible_python_interpreter: "{{ octavia_bin }}/python"
 
     - name: Set Octavia management network UUID fact
       set_fact: