This page helps in namespace specific configuration
Useful link: Refer https://kubernetes.io/docs/tasks/administer-cluster/namespaces/
Useful link: https://jeremievallee.com/2018/05/28/kubernetes-rbac-namespace-user.html
Below example checks for kube-public namespace
checking namespace from within POD
root@citrixingresscontroller-nwt9x:/# cat /var/run/secrets/kubernetes.io/serviceaccount/namespace
kube-public
Useful link: https://stackoverflow.com/questions/31557932/how-to-get-the-namespace-from-inside-a-pod-in-openshift/31574967