educative.io

The containerPort in replicaSet yaml is different from the port in service yaml

Courses
,
#1

In the example for the replicaSet yaml file, “containerPort” is 28017. However, in the example of the service yaml file, the port (target port) is 27017. The example works fine, but I was under the impression that they should be the same. Are they not related to each other at all?

Thanks for you help in advance!

#2

Both ports are used at some point in the examples. 27017 is the default port for Mongo API while 28017 is for the UI.