You need to configure Networking so that the bare metal server can communicate with the Networking service for DHCP, PXE boot and other requirements. This section covers configuring Networking for a single flat network for bare metal provisioning.
You will also need to provide Bare Metal service with the MAC address(es) of each node that it is provisioning; Bare Metal service in turn will pass this information to Networking service for DHCP and PXE boot configuration. An example of this is shown in the Enrollment section.
Edit /etc/neutron/plugins/ml2/ml2_conf.ini
and modify these:
[ml2]
type_drivers = flat
tenant_network_types = flat
mechanism_drivers = openvswitch
[ml2_type_flat]
flat_networks = physnet1
[securitygroup]
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
enable_security_group = True
[ovs]
bridge_mappings = physnet1:br-eth2
# Replace eth2 with the interface on the neutron node which you
# are using to connect to the bare metal server
If neutron-openvswitch-agent runs with ovs_neutron_plugin.ini
as the input
config-file, edit ovs_neutron_plugin.ini
to configure the bridge mappings
by adding the [ovs] section described in the previous step, and restart the
neutron-openvswitch-agent.
Add the integration bridge to Open vSwitch:
$ ovs-vsctl add-br br-int
Create the br-eth2 network bridge to handle communication between the OpenStack services (and the Bare Metal services) and the bare metal nodes using eth2. Replace eth2 with the interface on the network node which you are using to connect to the Bare Metal service:
$ ovs-vsctl add-br br-eth2
$ ovs-vsctl add-port br-eth2 eth2
Restart the Open vSwitch agent:
# service neutron-plugin-openvswitch-agent restart
On restarting the Networking service Open vSwitch agent, the veth pair between the bridges br-int and br-eth2 is automatically created.
Your Open vSwitch bridges should look something like this after following the above steps:
$ ovs-vsctl show
Bridge br-int
fail_mode: secure
Port "int-br-eth2"
Interface "int-br-eth2"
type: patch
options: {peer="phy-br-eth2"}
Port br-int
Interface br-int
type: internal
Bridge "br-eth2"
Port "phy-br-eth2"
Interface "phy-br-eth2"
type: patch
options: {peer="int-br-eth2"}
Port "eth2"
Interface "eth2"
Port "br-eth2"
Interface "br-eth2"
type: internal
ovs_version: "2.3.0"
Create the flat network on which you are going to launch the instances:
$ neutron net-create --tenant-id $TENANT_ID sharednet1 --shared \
--provider:network_type flat --provider:physical_network physnet1
Create the subnet on the newly created network:
$ neutron subnet-create sharednet1 $NETWORK_CIDR --name $SUBNET_NAME \
--ip-version=4 --gateway=$GATEWAY_IP --allocation-pool \
start=$START_IP,end=$END_IP --enable-dhcp
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