即时在Prometheus中添加指标标签

我在prometheus有个反指标。我想动态地向它添加标签，例如，如果我的请求是http://abc123.com/{p1}，我想要custom_metric_name能够存储：{statuscode=200, p1=p1Value , host="abc123"}；如果请求是http://def123.com/{p2}，则想要custom_metric_name 能够存储{statuscode=200, p2=p2Value , host="def123"}，且custom_metric_name能够由双方共享度量。我还在努力找答案。

You can use relabel_config or metric_relabel_config in your Prometheus config.

It would look like the following:

- source_labels: [request_origin]
  regex: 'http://(\w+)/.*'
  replacement: '${1}'
  target_label: host

See also this article showing usage of relabelling.