gistfile1.txt

# Code:

{%-for device, value in salt.pillar.get('server:network', {}).iteritems() %}
  {%-if value['set_type'] == "single" %}
auto {{device}}
iface {{device}} inet static
address {{value['set_ipaddress']}}
netmask {{value['set_netmask']}}
    {%-if value['set_gateway'] is defined%}  
gateway {{value['set_gateway']}}
    {%-endif%}
  {%-endif%}
  
  {%-if value['set_type'] == "slave"%}
auto {{device}}
iface {{device}} inet manual
bond-master {{value['set_master']}}
  {%endif%}

  {%-if value['set_type'] == "bond-master"%}
auto {{device}}
iface {{device}} inet static
address {{value['set_ipaddress']}}
netmask {{value['set_netmask']}}
    {%-if value['set_gateway'] is defined%}
gateway {{value['set_gateway']}}
    {%-endif%}
bond-mode {{value['set_bond_type']}}
bond-miimon 100
bond-lacp-rate 1
bond-slaves {{value['set_bond_intf']}}
  {%endif%}
{%-endfor%}

# Pillar
server:
  network:
    ens3:
      set_type: "slave"
      set_master: bond0

    ens4:
      set_type: "slave"
      set_master: bond0

    bond0:
      set_type: "bond-master"
      set_bond_intf: ens3 ens4
      set_bond_type: 3+4
      set_ipaddress: 172.18.0.51
      set_netmask: 255.255.255.0
      set_gateway: 172.18.0.254

# Output: 
auto ens4
iface ens4 inet manual
bond-master bond0
  
auto bond0
iface bond0 inet static
address 172.18.0.51
netmask 255.255.255.0
gateway 172.18.0.254
bond-mode 3+4
bond-miimon 100
bond-lacp-rate 1
bond-slaves ens3 ens4
  
auto ens3
iface ens3 inet manual
bond-master bond0