commit fd62da8df031b07706ea0f5b045f7f3d03519e3f
Author: Erik Berg <openstack@slipsprogrammor.no>
Date:   Mon Oct 5 16:47:56 2020 +0200

    Allow user to override UseRoutes in template
    
    You could perhaps have a group_vars/designate_all.yml looking like
    this;
    
    ---
    lxc_container_networks:
      lxcbr0_address:
        ...
        dhcp_use_routes: false
    
    Change-Id: Id61fdb5a3b52a01a49242fc01cc01bf2dede09af

diff --git a/templates/container_network.network.j2 b/templates/container_network.network.j2
index ba49c2b..aff4f0a 100644
--- a/templates/container_network.network.j2
+++ b/templates/container_network.network.j2
@@ -10,8 +10,9 @@ Address={{ item.value.address }}/{{ addr_cidr }}
 UseDNS={{ (lxc_container_enable_resolved | bool) | ternary('yes', 'no') }}
 UseNTP=yes
 RouteMetric=20
-{% if hostvars[inventory_hostname]['gateway'] is defined %}
-UseRoutes=False
+{% if hostvars[inventory_hostname]['gateway'] is defined
+   or item.value.dhcp_use_routes is defined %}
+UseRoutes={{ item.value.dhcp_use_routes | default(false) | bool | lower }}
 {% endif %}
 
 {% endif %}