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The port value here is generated randomly in the range 30000-32767, after saving the modified file with type: NodePort (the default value should be ClusterIP). If you want, you can opt for another value, as long as it belongs to the aforementioned range of values, by relaunching the edit command (here we have chosen the 30000 port, easier to remember). Remember There is no need to open the port in the SecurityGroup on OpenStack. We on OpenStack, because this range of ports is already open for WorkerNodes (see "Preliminary steps" in cap. 2). We can check if the changes made have had any effect on the service by running the command
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