openstack-manuals/doc/install-guide/source/environment-networking-compute.rst

Compute node

Configure network interfaces

1. Configure the first interface as the management interface:

   IP address: 10.0.0.31

   Network mask: 255.255.255.0 (or /24)

   Default gateway: 10.0.0.1

   Note

   Additional compute nodes should use 10.0.0.32, 10.0.0.33, and so on.

2. The public interface uses a special configuration without an IP address assigned to it. Configure the second interface as the public interface:

   Replace INTERFACE_NAME with the actual interface name. For example, eth1 or ens224.

   ubuntu or debian

   1. Edit the /etc/network/interfaces file to contain the following:

      # The public network interface
      auto INTERFACE_NAME
      iface  INTERFACE_NAME inet manual
      up ip link set dev $IFACE up
      down ip link set dev $IFACE down

   rdo

   1. Edit the /etc/sysconfig/network-scripts/ifcfg-INTERFACE_NAME file to contain the following:

      Do not change the HWADDR and UUID keys.

      DEVICE=INTERFACE_NAME
      TYPE=Ethernet
      ONBOOT="yes"
      BOOTPROTO="none"

   obs

   1. Edit the /etc/sysconfig/network/ifcfg-INTERFACE_NAME file to contain the following:

      STARTMODE='auto'
      BOOTPROTO='static'

3. Reboot the system to activate the changes.

Configure name resolution

1. Set the hostname of the node to compute1.