The way the images are built is going to be changed, and in order to avoid
overwritting and breaking the current images, the image versions are bumped.
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.
