Compute node¶
Configure network interfaces¶
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.
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.
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"
Reboot the system to activate the changes.
Configure name resolution¶
Set the hostname of the node to compute1.
Edit the /etc/hosts file to contain the following:
# controller 10.0.0.11 controller # compute1 10.0.0.31 compute1 # block1 10.0.0.41 block1 # object1 10.0.0.51 object1 # object2 10.0.0.52 object2
Warning
Some distributions add an extraneous entry in the /etc/hosts file that resolves the actual hostname to another loopback IP address such as 127.0.1.1. You must comment out or remove this entry to prevent name resolution problems. Do not remove the 127.0.0.1 entry.
Note
To reduce complexity of this guide, we add host entries for optional services regardless of whether you choose to deploy them.
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