Escape multiple entries of the same port return by the parser

[BuddhiWathsala]

Purpose

K8s service creation returns an issue when we going to expose the same port more than twice. To fix this issue.

Goals

$subject

Approach

Create a slice to contain already exposed ports. If the given port is in that slice we are not going to expose it again.

Release note

Fix the issue of service creation, when the user gives the same port more than twise in the app.

Test environment

minikube version: v1.2.0