Troubleshoot compressed rules in relation databags

In some relations, rules are compressed in the databag and are not human readable, making troubleshooting difficult. Assuming your unit and endpoint are named otelcol/0 and receive-otlp respectively, then you can view the compressed rules with:

juju show-unit otelcol/0 --format=json | \
  jq -r '."otelcol/0"."relation-info"[] | select(.endpoint == "receive-otlp") | ."application-data".rules'

> /Td6WFoAAATm1rRGAgAhARYAAAB0L ... IEAJVHNA5MGJt6AAGcCtk3AABCHzmZscRn+wIAAAAABFla

And decompress for troubleshooting with:

juju show-unit otelcol/0 --format=json | \
  jq -r '."otelcol/0"."relation-info"[] | select(.endpoint == "receive-otlp") | ."application-data".rules' | \
  base64 -d | xz -d | jq

> {JSON rule content ...}