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## Background

### What's the system under observation (SUO)?

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e.g. etcd, kubernetes, ceph, linux node via Prometheus node exporter
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#### Link to the mixin you're migrating from (if applicable)

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#### What kind of parameters do you think it makes sense for this pop to take? Why?

#### How did you decide whether it was worth making particular queries into reusable signals?

#### Which part of the polly spec was most confusing to work with? If you figured it out, what helped you get there?

#### Is there anything about observing the SUO that the polly schema did not allow you to express in the pop?

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### Other thoughts

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