eg-net2-routes.yaml

# Required Python packages:
#
# ansible
# openstackclient
# openstacksdk
# netaddr

- import_playbook: common.yaml
- import_playbook: eg-common.yaml
- import_playbook: net2-common.yaml  

- hosts: all
  gather_facts: no

  tasks:
  - name: 'Set Extra Gateway routes on Net2 subnet, pointing towards Pri network router'
    command: openstack subnet set --host-route "destination={{ item }},gateway={{ os_net2_pri_net_router_ip }}"  "{{ os_net2_subnet }}"
    loop: "{{ egRoutesOnNet2Network }}" 

  - name: 'Set routes on Primary router to send traffic onwards to EG router'
    command: openstack router set --route "destination={{ item }},gateway={{ os_subnet_range | ipaddr('last_usable') | ipmath(-1) }}"  "{{ os_router }}"
    loop: "{{ egRoutesOnNet2Network }}"

  - name: 'Set a return route for the Net2 subnet on the EG router'
    command: openstack router set --route "destination={{ os_net2_subnet_range }},gateway={{ os_subnet_range | next_nth_usable(1) }}"  "{{ os_eg_router }}"