As a cluster administrator, you can assign an egress IP address for traffic leaving the cluster from a namespace or from specific pods in a namespace.

Assigning an egress IP address to a namespace

You can assign one or more egress IP addresses to a namespace or to specific pods in a namespace.

Prerequisites
  • Install the OpenShift CLI (oc).

  • Log in to the cluster as a cluster administrator.

  • Configure at least one node to host an egress IP address.

Procedure
  1. Create an EgressIP object:

    1. Create a <egressips_name>.yaml file where <egressips_name> is the name of the object.

    2. In the file that you created, define an EgressIPs object, as in the following example:

      apiVersion: k8s.ovn.org/v1
      kind: EgressIP
      metadata:
        name: egress-project1
      spec:
        egressIPs:
        - 192.168.127.10
        - 192.168.127.11
        namespaceSelector:
          matchLabels:
            name: project1
  2. To create the object, enter the following command.

    $ oc apply -f <egressips_name>.yaml (1)
    1 Replace <egressips_name> with the name of the object.
    Example output
    egressips.k8s.ovn.org/<egressips_name> created
  3. Optional: Save the <egressips_name>.yaml file so that you can make changes later.

Additional resources