__param_match[] available in relabeling

[skpenpen]

What did you do?

Try to use relabelling to populate the parameter "match[]" for federation

What did you expect to see?

The "__param_match[]" populate from value from consul tag "param"

What did you see instead? Under which circumstances?

failed to reload config: couldn't load configuration (--config.file=/prometheus/conf/prometheus-smhg-mutu.yml): parsing YAML file /prometheus/conf/prometheus.yml: "__param_match[]" is invalid 'target_label' for replace action

Environment

• System information:

Linux 3.10.0-693.11.1.el7.x86_64 x86_64

• Prometheus version:

  2.1.0

• Prometheus configuration file:

relabel_configs:
  - source_labels: ['__meta_consul_tags']
      regex: '.*;params=([^;]*).*'
      target_label: '__param_match[]'

• Logs:

err="couldn't load configuration (--config.file=/prometheus/conf/prometheus.yml): parsing YAML file /prometheus/conf/prometheus.yml: \"__param_match[]\" is invalid 'target_label' for replace action"

[brian-brazil]

This is not possible, and I don't think it's sane to offer it. Federation can have multiple params and they should be static.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.