downloads, builds, and runs https://github.com/Tuxdude/prometheus_cable_modem_exporter
assumes you've got an nfs server called kmaster.k8s.lan and an export called /export/d01/cm-exporter-config which contains build.sh
cm-exporter-deployment.yaml contains the PVs, PVCs, volumes, init container, and service/main container. runs two instances. it runs from /config
cm-exporter-lb.yaml defines the load balancer. i use metallb.
build.sh replaces the listener address with all interfaces.
i point prometheus at $LB_VIP and port 8081.