Add Kubernetes namespace discovery (#736)
Add Kubernetes namespace discovery (#736)


chosenken/docs,prometheus/docs,chosenken/docs,du2016/prometheus-docs,prometheus/docs,ddfreyne/prometheus-docs,du2016/prometheus-docs,prometheus/docs,du2016/prometheus-docs,chosenken/docs,ddfreyne/prometheus-docs,chosenken/docs,ddfreyne/prometheus-docs,ddfreyne/prometheus-docs