Task ordering

order.go

func (t ExecutionPlan) Less(i, j int) bool {
	return false ||
		// Then PlannedTask are grouped by machines, respecting the kubeadm node
		// ProvisioningOrder: first complete provisioning on bootstrap control
		// plane, then complete provisioning of secondary control planes, and
		// finally provision worker nodes.
		t[i].Node.ProvisioningOrder() < t[j].Node.ProvisioningOrder() ||
		// Node name is considered in order to get a predictable/repeatable ordering
		// in case of many nodes with the same ProvisioningOrder
		(t[i].Node.ProvisioningOrder() == t[j].Node.ProvisioningOrder() &&
			t[i].Node.Name < t[j].Node.Name) ||
		// Then, when planning task for one node, the given order of actions will
		// be respected
		(t[i].Node.ProvisioningOrder() == t[j].Node.ProvisioningOrder() &&
			t[i].Node.Name == t[j].Node.Name &&
			t[i].actionIndex < t[j].actionIndex) ||
		// and finally, for each action, the predefined order of tasks will be used
		(t[i].Node.ProvisioningOrder() == t[j].Node.ProvisioningOrder() &&
			t[i].Node.Name == t[j].Node.Name &&
			t[i].actionIndex == t[j].actionIndex &&
			t[i].taskIndex < t[j].taskIndex)
}