Platform Deployment · PD-K8S-03

Prepare the Kubernetes/OpenShift Host

Select a suitable worker node and verify /dev/kvm and /dev/net/tun.

PROCEDURE

Choose the node deliberately

Select a node that will run the STRATUM controller. Verify /dev/kvm and /dev/net/tun on the host before labeling it; do not discover missing virtualization support after Helm has created the workload.

DETAIL

Prepare OpenShift access

Create the STRATUM project/namespace and service account. On OpenShift, the chart requires the privileges needed for the host/device access requested by the STRATUM workload, so validate the SCC assignment explicitly.

DETAIL

Check persistence

Confirm that the cluster has a usable StorageClass. Controller state is persistent; do not treat the controller pod filesystem as the source of durable STRATUM state.

COMMANDS

Commands

Replace example node, registry, namespace, and endpoint values with the values for the target environment.

shell

export NODE=YOUR-WORKER-NODE
oc debug node/$NODE -- chroot /host sh -c '
  echo "KVM:"; ls -l /dev/kvm;
  echo; echo "TUN:"; ls -l /dev/net/tun
'

shell

oc new-project stratum
oc create serviceaccount stratum -n stratum
oc adm policy add-scc-to-user privileged -z stratum -n stratum
oc get storageclass

RESULT

The outcome you should see

The selected node exposes KVM and TUN, the STRATUM namespace/service account exists, required OpenShift privileges are assigned, and a usable StorageClass is known.