Service

Expose an application running on a set of Pods as a network service.

Kubernetes gives Pods their own IP addresses and a single DNS name for a

set of Pods, and can load-balance across them.

▪ ConfigMaps

API object used to store non-confidential data in key-value pairs. Pods can

consume ConfigMaps as environment variables, command-line arguments, or

as configuration files in a volume.

▪ Secrets

Store and manage sensitive information, such as passwords, OAuth tokens,

and ssh keys.

▪ Volumes

Persistent storage location that can be mounted into a pod. Volumes can be

used to store data that needs to persist across container restarts or be shared

between multiple containers in a pod.

https://kubernetes.io/docs/concepts/overview/components/