# Loopback
auto lo
iface lo inet loopback

# Physical interface
auto ens3
iface ens3 inet manual

# Container/Host management VLAN interface
auto ens3.10
iface ens3.10 inet manual
    vlan-raw-device ens3

# OpenStack Networking VXLAN (tunnel/overlay) VLAN interface
auto ens3.30
iface ens3.30 inet manual
    vlan-raw-device ens3

# Storage network VLAN interface (optional)
auto ens3.20
iface ens3.20 inet manual
    vlan-raw-device ens3

# Host network
auto br-host
iface br-host inet dhcp
    bridge_ports ens3
    bridge_stp off

# Container/Host management bridge
auto br-mgmt
iface br-mgmt inet static
    bridge_stp off
    bridge_waitport 0
    bridge_fd 0
    bridge_ports ens3.10
    address 172.29.236.13
    netmask 255.255.252.0

# OpenStack Networking VXLAN (tunnel/overlay) bridge
auto br-vxlan
iface br-vxlan inet manual
    bridge_stp off
    bridge_waitport 0
    bridge_fd 0
    bridge_ports ens3.30

# OpenStack Networking VLAN bridge
auto br-vlan
iface br-vlan inet manual
    bridge_stp off
    bridge_waitport 0
    bridge_fd 0
    bridge_ports ens3

# Storage bridge (optional)
auto br-storage
iface br-storage inet static
    bridge_stp off
    bridge_waitport 0
    bridge_fd 0
    bridge_ports ens3.20
    address 172.29.244.13
    netmask 255.255.252.0