I have one controller and two compute nodes which is configured with nova network. I wanted to make a bridge but just one compute node gets a bridge after the execution of instructions below.

controller@controller:~$ nova network-create vm-net --bridge br100 --multi-host T --fixed-range-v4 10.0.0.0/24

controller@controller:~$ source admin-openrc.sh

controller@controller:~$ nova network-list

+--------------------------------------+--------+-------------+

| ID                                   | Label  | Cidr        |

+--------------------------------------+--------+-------------+

| bd0fadba-4416-4ad3-afab-67e465d8c264 | vm-net | 10.0.0.0/24 |
+--------------------------------------+--------+-------------+

Here's my nova.conf of compute node that has no br100 in 'ifconfig' result. What do I need to configure?

[DEFAULT]

dhcpbridge_flagfile=/etc/nova/nova.conf

dhcpbridge=/usr/bin/nova-dhcpbridge

logdir=/var/log/nova

state_path=/var/lib/nova

lock_path=/var/lock/nova

force_dhcp_release=True

iscsi_helper=tgtadm

libvirt_use_virtio_for_bridges=True

connection_type=libvirt

root_helper=sudo nova-rootwrap /etc/nova/rootwrap.conf

verbose=True

ec2_private_dns_show_ip=True

api_paste_config=/etc/nova/api-paste.ini

volumes_path=/var/lib/nova/volumes

enabled_apis=ec2,osapi_compute,metadata

auth_strategy = keystone

rpc_backend = rabbit

rabbit_host = 192.168.0.40

rabbit_password = rabbitpass

my_ip = 192.168.0.5

vnc_enabled = True

vncserver_listen = 0.0.0.0

vncserver_proxyclient_address = 192.168.0.5

novncproxy_base_url = http://192.168.0.40:6080/vnc_auto.html

glance_host = 192.168.0.40​

network_api_class = nova.network.api.API

security_group_api = nova

firewall_driver = nova.virt.libvirt.firewall.IptablesFirewallDriver

network_manager = nova.network.manager.FlatDHCPManager

network_size = 254

allow_same_net_traffic = False

multi_host = True

send_arp_for_ha = True

share_dhcp_address = True

force_dhcp_release = True

flat_network_bridge = br100

flat_interface = eth1

public_interface = eth1

[database]

connection = mysql://nova:novadbpass@192.168.0.40/nova

[keystone_authtoken]

auth_uri = http://192.168.0.40:5000

auth_host = 192.168.0.40

auth_port = 35357

auth_protocol = http

admin_tenant_name = service

admin_user = nova

admin_password = novapass