[dns-stats-users] Running collector on Kubernetes
unix.gurus at gmail.com
Tue Nov 16 04:44:46 UTC 2021
I'm running NSD and Unbound on Kubernetes, and I wanted to run the DNS
Stats Collector alongside them. To this end I created a Docker image for
Collector (https://github.com/SeanBurford/dns-stats-docker). I'm sharing
it here in case others find it useful.
There are README.md files throughout the tree recording my thoughts, but
here are the main points:
- Dockerfile (
contains the directions used to build the binaries and then the container.
- bin/start_compactor.sh adds the hostname to the output file template,
which is handy when you're running multiple instances on Kubernetes (they
all have unique hostnames).
- I use a Unix socket to pass dnstap messages from the name servers to
the compactors, with one compactor instance per name server instance.
- I'm using NFS to mount a shared log directory across the instances,
though there are plenty of options for cluster filesystems.
- I would have preferred to use Alpine Linux, however various
dependencies made Ubuntu (Focal) an easier choice. This is fine, Alpine
Linux containers run alongside Ubuntu containers in a single Kubernetes pod
(sharing the dnstap Unix socket).
Feel free to send pull requests or suggestions.
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