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iSCSI target (=the server) is implemented in Linux kernel. The "iSCSI server" pod is not a real server, it just configures the kernel on the host. In order to run iSCSI tests in parallel, we need to be able to run multiple such pods on a single node, serving different LUNs to different tests. The "server pod" must run with HostNetwork=true to achieve that. Each pod then creates its own IQN with namespace name, so it can't collide with other server pods running in another namespaces on the same node.