Red Hat build of MicroShift

Install the Multus CNI plugin on a running node

If you want to attach additional networks to a pod for high-performance network configurations, you can install the MicroShift Multus RPM package. After installation, a host restart is required to re-create all the pods with the Multus annotation.

Uninstalling the Multus CNI plugin is not supported.

Prerequisites

You have root access to the host.

Procedure

Install the Multus RPM package by running the following command:
```
$ sudo dnf install microshift-multus
```
If you create your custom resources (CRs) for additional networks now, you can complete your installation and apply configurations with one restart.
To apply the package manifest to an active node, restart the host by running the following command:
```
$ sudo systemctl restart
```

Verification

After restarting, ensure that the Multus CNI plugin components are created by running the following command:

$ oc get pod -A | grep multus

Example output

openshift-multus      dhcp-daemon-ktzqf     1/1   Running   0     45h
openshift-multus      multus-4frf4          1/1   Running   0     45h

Next steps

If you have not done so, configure and apply the additional networks you want to use.
Deploy your applications that use the created CRs.