Kubernetes
Question
helmchart/daemonset.yaml at master · netdata/helmchart · GitHub shows that pods are using hostNetwork and exposing port 19999 externally.
Why is this necessary?
Given that daemonset streams data to netdata-parent deployment, my expectation is that hostNetwork is not necessary, and also netdata-child pods should not need to have any ports open.
Hi @sdo.
You are right, netdata child (daemonset) manifest has hostNetwork: true and it is not user configurable, so it is hard requirement.
Check the issue where we discussed it. One of the reasons - we want to be able to collect data from the applications listening on localhost. For example - kubelet (not containerized), but it can be done via api server proxy feature. Likely there are other things i didn’t mention.
What we need to do is to make clear why we need hostNetwork: true and make it user configurable, i agree.