openstack-ansible/doc/source/install-guide/targethosts-network.rst

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Configuring the network

Although Ansible automates most deployment operations, networking on target hosts requires manual configuration because it can vary dramatically per environment. For demonstration purposes, these instructions use a reference architecture with example network interface names, networks, and IP addresses. Modify these values as needed for the particular environment.

The reference architecture for target hosts contains the following mandatory components:

• A bond0 interface using two physical interfaces. For redundancy purposes, avoid using more than one port on network interface cards containing multiple ports. The example configuration uses eth0 and eth2. Actual interface names can vary depending on hardware and drivers. Configure the bond0 interface with a static IP address on the host management network.
• A bond1 interface using two physical interfaces. For redundancy purposes, avoid using more than one port on network interface cards containing multiple ports. The example configuration uses eth1 and eth3. Actual interface names can vary depending on hardware and drivers. Configure the bond1 interface without an IP address.
• Container management network subinterface on the bond0 interface and br-mgmt bridge with a static IP address.
• The OpenStack Networking VXLAN subinterface on the bond1 interface and br-vxlan bridge with a static IP address.
• The OpenStack Networking VLAN br-vlan bridge on the bond1 interface without an IP address.

The reference architecture for target hosts can also contain the following optional components:

• Storage network subinterface on the bond0 interface and br-storage bridge with a static IP address.

For more information, see OpenStack Ansible Networking.

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