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Update Cilium migration how-to to always use api-int #369

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Dec 4, 2024
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Update Cilium migration how-to to always use api-int #369

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13 changes: 5 additions & 8 deletions docs/modules/ROOT/pages/how-tos/network/migrate-to-cilium.adoc
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Expand Up @@ -148,18 +148,15 @@ yq eval -i '.parameters.networkpolicy.ignoredNamespaces = ["openshift-oauth-apis
[source,bash]
----
export CLUSTER_DOMAIN=$(kubectl get dns cluster -ojsonpath='{.spec.baseDomain}')
kubectl --as=cluster-admin -n openshift-dns exec ds/node-resolver -- nslookup api-int.${CLUSTER_DOMAIN}
kubectl --as=cluster-admin -n openshift-dns exec ds/node-resolver -- dig +short api-int.${CLUSTER_DOMAIN}
----
+
[TIP]
[NOTE]
====
If the command doesn't return a valid record for `api-int`, the Cilium config needs to be adjusted to use the `api` record to ensure that the Kubernetes API can be accessed.
The command should always return a valid record for `api-int`.

[source,bash]
----
yq -i '.parameters.cilium.cilium_helm_values.k8sServiceHost="api.${openshift:baseDomain}"' \
"${CLUSTER_ID}.yml"
----
If it doesn't, please check that the OpenShift DNS cluster operator is healthy and double-check that the record is being resolved on the internal DNS for clusters on vSphere.
You can see more details about the lookup by omitting the `+short` flag for the `dig` command.
====

. Configure component `cilium`.
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