metadata/service/tempest/tempest_net.yml

parameters:
  neutron:
    client:
      enabled: true
      server:
        admin_identity:
          network:
            tempest-net:
              tenant: admin
              shared: True
              router_external: False
              admin_state_up: True
              subnet:
                tempest-subnet:
                  cidr: 10.20.40.0/24
                  allocation_pools:
                    - start: 10.20.40.10
                      end: 10.20.40.254
                  gateway: 10.20.40.1
                  enable_dhcp: True