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Prerequisites & cluster preparation(15 of 15)

Keep this order!
⚠️ Cluster introduction

The following tests have been executed on a Single Node OpenShift (SNO) cluster.

The cluster is using: Minio Object Storage, MetalLB, LVM (local disks must be available), and a single NIC (a 2nd IP address is used for the VM network tests).

Some test cases could not be fully executed due to limitation of the SNO cluster or the hardware. They are still documented for reference and marked accordingly.

All tests run in the vmtest namespace. NetworkAttachmentDefinitions (NADs) define which bridge networks VMs may use — without NADs, VMs cannot attach secondary network interfaces via NADs. The NADs reference the bridges from PRE-04. Labels for later MetalLB namespace isolation are also set.

1Create namespace vmtest (skip if already created in PRE-07)
2Set labels for env=testing and MetalLB pool isolation
3Variant A (cloud/Hetzner): create NADs for software bridges (net1-bridge → br-net1, etc.)
4Variant B (on-premises, if NICs and switches are configured): create NADs for VLAN bridges (vlan10-bridge → br-vlan10, etc.)
5Create NADs matching the variant chosen in PRE-04 (Commands/YAML tab)
6Verify: oc get network-attachment-definitions -n vmtest
7For physical LAN access with a busy NIC: see TC-NET-002 (OVN-K localnet) — macvtap is not supported