Home OpenStack-Ansible Installation Guide

Configuring the network on a target host¶

This example uses the following parameters to configure networking on a single target host. See Figure 3.2, “Target hosts for infrastructure, networking, and storage services” and Figure 3.3, “Target hosts for Compute service” for a visual representation of these parameters in the architecture.

VLANs:
- Host management: Untagged/Native
- Container management: 10
- Tunnels: 30
- Storage: 20
Networks:
- Host management: 10.240.0.0/22
- Container management: 172.29.236.0/22
- Tunnel: 172.29.240.0/22
- Storage: 172.29.244.0/22
Addresses:
- Host management: 10.240.0.11
- Host management gateway: 10.240.0.1
- DNS servers: 69.20.0.164 69.20.0.196
- Container management: 172.29.236.11
- Tunnel: 172.29.240.11
- Storage: 172.29.244.11

Figure 3.2. Target hosts for infrastructure, networking, and storage services

../_images/networkarch-container-external-example.png

Figure 3.3. Target hosts for Compute service

../_images/networkarch-bare-external-example.png

Contents of the /etc/network/interfaces file:

# Physical interface 1
auto eth0
iface eth0 inet manual
    bond-master bond0
    bond-primary eth0

# Physical interface 2
auto eth1
iface eth1 inet manual
    bond-master bond1
    bond-primary eth1

# Physical interface 3
auto eth2
iface eth2 inet manual
    bond-master bond0

# Physical interface 4
auto eth3
iface eth3 inet manual
    bond-master bond1

# Bond interface 0 (physical interfaces 1 and 3)
auto bond0
iface bond0 inet static
    bond-slaves eth0 eth2
    bond-mode active-backup
    bond-miimon 100
    bond-downdelay 200
    bond-updelay 200
    address 10.240.0.11
    netmask 255.255.252.0
    gateway 10.240.0.1
    dns-nameservers 69.20.0.164 69.20.0.196

# Bond interface 1 (physical interfaces 2 and 4)
auto bond1
iface bond1 inet manual
    bond-slaves eth1 eth3
    bond-mode active-backup
    bond-miimon 100
    bond-downdelay 250
    bond-updelay 250

# Container management VLAN interface
iface bond0.10 inet manual
    vlan-raw-device bond0

# OpenStack Networking VXLAN (tunnel/overlay) VLAN interface
iface bond1.30 inet manual
    vlan-raw-device bond1

# Storage network VLAN interface (optional)
iface bond0.20 inet manual
    vlan-raw-device bond0

# Container management bridge
auto br-mgmt
iface br-mgmt inet static
    bridge_stp off
    bridge_waitport 0
    bridge_fd 0
    # Bridge port references tagged interface
    bridge_ports bond0.10
    address 172.29.236.11
    netmask 255.255.252.0
    dns-nameservers 69.20.0.164 69.20.0.196

# OpenStack Networking VXLAN (tunnel/overlay) bridge
auto br-vxlan
iface br-vxlan inet static
    bridge_stp off
    bridge_waitport 0
    bridge_fd 0
    # Bridge port references tagged interface
    bridge_ports bond1.30
    address 172.29.240.11
    netmask 255.255.252.0

# OpenStack Networking VLAN bridge
auto br-vlan
iface br-vlan inet manual
    bridge_stp off
    bridge_waitport 0
    bridge_fd 0
    # Bridge port references untagged interface
    bridge_ports bond1

# Storage bridge (optional)
auto br-storage
iface br-storage inet static
    bridge_stp off
    bridge_waitport 0
    bridge_fd 0
    # Bridge port reference tagged interface
    bridge_ports bond0.20
    address 172.29.244.11
    netmask 255.255.252.0

Previous topic

Reference architecture

Next topic

Chapter 4. Deployment configuration

Project Source

This Page