Skip to content

Instantly share code, notes, and snippets.

@williamcaban

williamcaban/externalIP-ocp4x.md

Last active June 24, 2020 22:08
Show Gist options
  • Save williamcaban/759be5b0d0a6b2a49c5f6425a857b863 to your computer and use it in GitHub Desktop.
Save williamcaban/759be5b0d0a6b2a49c5f6425a857b863 to your computer and use it in GitHub Desktop.
Download ZIP
Raw
externalIP-ocp4x.md

Enabling externalIPs on OCP4.2

Edit the config for the network Custom Resource (CR) instance spec.externalIP.policy.allowedCIDRs with the CIDRs to use.

  1. Edit the Cluster network configuration:
oc edit network.config.openshift.io cluster
  1. Edit the spec.externalIP.policy.allowedCIDRs. The following enable 192.168.18.64/26 as an externalIP CIDR:
....
spec:
  clusterNetwork:
  - cidr: 10.128.0.0/14
    hostPrefix: 23
  externalIP:
    policy:
      allowedCIDRs:
      - 192.168.18.64/26
  networkType: OpenShiftSDN
  serviceNetwork:
  - 172.30.0.0/16
...
  1. Validate changes where applied to the CR
oc get network.operator.openshift.io  cluster -o yaml
  1. Wait few minutes while the Network Operator apply the configuration changes
oc patch svc demo-service -p '{"spec":{"externalIPs":["192.168.18.65"]}}'
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment