dnsnames with commas about ssl_exporter

[ribbybibby]

Thanks for the issue!

This is by design. It makes it simpler to perform regex matching in relabel configs and follows the convention used in other 'list' type labels in Prometheus: https://www.robustperception.io/little-things-matter.

[NiceGuyIT]

That's interesting. The article talks about using relabel_configs to change internal labels in __meta_consul_tags to enhance downstream information and processes. It took me longer than desired to realize relabel_configs does not work because dnsnames is a metric, not a config. metric_relabel_configs can modify the dnsnames, emails, ips and others that might have a comma.

  metric_relabel_configs:
  - source_labels: [ dnsnames ]
    target_label: dnsnames
    regex: ",(.+),"
    replacement: "$1"
    action: replace

I'm going to close this because the metric_relabel_configs fixes it for me.