Removing an additional network - Multiple networks | Networking

Removing an additional network attachment definition

As a cluster administrator you can remove an additional network attachment.

Removing an additional network attachment definition

As a cluster administrator, you can remove an additional network from your OpenShift Container Platform cluster. The additional network is not removed from any Pods it is attached to.

Prerequisites

Install the OpenShift CLI (oc).
Log in as a user with cluster-admin privileges.

Procedure

To remove an additional network from your cluster, complete the following steps:

Edit the Cluster Network Operator (CNO) in your default text editor by running the following command:
```
$ oc edit networks.operator.openshift.io cluster
```
Modify the CR by removing the configuration from the additionalNetworks collection for the network attachment definition you are removing.
```
apiVersion: operator.openshift.io/v1
kind: Network
metadata:
  name: cluster
spec:
  additionalNetworks: [] (1)
```
1 If you are removing the configuration mapping for the only additional network attachment definition in the additionalNetworks collection, you must specify an empty collection.
Save your changes and quit the text editor to commit your changes.
Optional: Confirm that the additional network CR was deleted by running the following command:
```
$ oc get network-attachment-definition --all-namespaces
```