9.6.5. Using a secondary network for SSH access
You can configure a secondary network, attach a virtual machine (VM) to the secondary network interface, and connect to the DHCP-allocated IP address by using SSH.
Secondary networks provide excellent performance because the traffic is not handled by the cluster network stack. However, the VMs are exposed directly to the secondary network and are not protected by firewalls. If a VM is compromised, an intruder could gain access to the secondary network. You must configure appropriate security within the operating system of the VM if you use this method.
See the Multus and SR-IOV documentation in the OpenShift Virtualization Tuning & Scaling Guide for additional information about networking options.
Prerequisites
- You configured a secondary network such as Linux bridge or SR-IOV.
-
You created a network attachment definition for a Linux bridge network or the SR-IOV Network Operator created a network attachment definition when you created an
SriovNetworkobject.
9.6.5.1. Configuring a VM network interface by using the web console リンクのコピーリンクがクリップボードにコピーされました!
You can configure a network interface for a virtual machine (VM) by using the OpenShift Container Platform web console.
Prerequisites
- You created a network attachment definition for the network.
Procedure
-
Navigate to Virtualization
VirtualMachines. - Click a VM to view the VirtualMachine details page.
- On the Configuration tab, click the Network interfaces tab.
- Click Add network interface.
- Enter the interface name and select the network attachment definition from the Network list.
- Click Save.
- Restart or live migrate the VM to apply the changes.