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

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

   For Ubuntu:

   • Edit the /etc/network/interfaces file to contain the following:

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

   For RHEL or CentOS:

   • 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"
     

   For SUSE:

   • 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.

2. 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

   This guide includes host entries for optional services in order to reduce complexity should you choose to deploy them.