Editing an additional network

As a cluster administrator you can modify the configuration for an existing additional network.

Modifying an additional network attachment definition

As a cluster administrator, you can make changes to an existing additional network. Any existing pods attached to the additional network will not be updated.

Prerequisites

• You have configured an additional network for your cluster.

• Install the OpenShift CLI (oc).

• Log in as a user with cluster-admin privileges.

Procedure

To edit an additional network for your cluster, complete the following steps:

1. Run the following command to edit the Cluster Network Operator (CNO) CR in your default text editor:

   $ oc edit networks.operator.openshift.io cluster

2. In the additionalNetworks collection, update the additional network with your changes.

3. Save your changes and quit the text editor to commit your changes.

4. Optional: Confirm that the CNO updated the NetworkAttachmentDefinition object by running the following command. Replace <network-name> with the name of the additional network to display. There might be a delay before the CNO updates the NetworkAttachmentDefinition object to reflect your changes.

   $ oc get network-attachment-definitions <network-name> -o yaml

   For example, the following console output displays a NetworkAttachmentDefinition object that is named net1:

   $ oc get network-attachment-definitions net1 -o go-template='{{printf "%s\n" .spec.config}}'
   { "cniVersion": "0.3.1", "type": "macvlan",
   "master": "ens5",
   "mode": "bridge",
   "ipam":       {"type":"static","routes":[{"dst":"0.0.0.0/0","gw":"10.128.2.1"}],"addresses":[{"address":"10.128.2.100/23","gateway":"10.128.2.1"}],"dns":{"nameservers":["172.30.0.10"],"domain":"us-west-2.compute.internal","search":["us-west-2.compute.internal"]}} }