2_linux_bonds_vlans.j2 original

---
{% set mtu_ctlplane_list = [ctlplane_mtu] %}
{% set mtu_dataplane_list = [] %}
{% for network in role_networks %}
{# This block resolves the minimum viable MTU for interfaces connected to #}
{# the dataplane network(s), which start by "Tenant", and also bonds #}
{# and bridges that carry multiple VLANs. Each VLAN may have different MTU. #}
{# The bridge, bond or interface must have an MTU to allow the VLAN with the #}
{# largest MTU. #}
{% if network.startswith('Tenant') %}
{{ mtu_dataplane_list.append(lookup('vars', role_networks_lower[network] ~ '_mtu')) }}
{# This block resolves the minimum viable MTU for interfaces connected to #}
{# the control plane network(s) (don't start by "Tenant"), and also bonds #}
{# and bridges that carry multiple VLANs. Each VLAN may have different MTU. #}
{# The bridge, bond or interface must have an MTU to allow the VLAN with the #}
{# largest MTU. #}
{% else %}
{{ mtu_ctlplane_list.append(lookup('vars', role_networks_lower[network] ~ '_mtu')) }}
{%- endfor %}
{% set min_viable_mtu_ctlplane = mtu_ctlplane_list | max %}
{% set min_viable_mtu_dataplane = mtu_dataplane_list | max %}