How are you deploying your pods to Kubernetes? You are about to say helm, aren't you? You ended up on this page probably because you are looking for an alternative to helm. Stop googling and start reading, here I am going to explain what works for me. A while ago I was looking for a tool with the following features:
Simplify secret management with OpenSSL and Docker, if you are looking for a secure and easy way to store and access secrets you may find the following post useful.
An ingress controller is component in the kubernetes cluster that manages the traffic coming into the cluster. Through ingress configurations you can define the rules to access the containers in you pod. For more info refer to the official documentation.