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coredns/middleware/prometheus
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Miek Gieben 225cdd1ca3 Add AXFR test 
Test shouldTransfer by upping a testserver and sending the SOA query.

Remove state from DefaultErrorHandler and just get it from the request.

Add more logging to show what is going on.



This also adds the infrastructure for future tests.
2016-04-06 22:29:33 +01:00
..
handler.go Enable monitoring for non middleware 2016-04-06 14:13:29 +01:00
metrics.go Some monitoring refactoring 2016-04-06 13:42:56 +01:00
README.md Add AXFR test 2016-04-06 22:29:33 +01:00

README.md

prometheus

This module enables prometheus metrics for CoreDNS.

The following metrics are exported:

  • coredns_dns_request_count_total
  • coredns_dns_request_duration_seconds
  • coredns_dns_response_size_bytes
  • coredns_dns_response_rcode_count_total

Each counter has a label zone which is the zonename used for the request/response, and a label qtype which old the query type. The response_rcode_count_total has an extra label rcode which holds the rcode of the response.

If monitoring is enabled queries that do not enter the middleware chain are exported under the fake domain "dropped" (without a closing dot).

Restarting CoreDNS will stop the monitoring. This is a bug. Also this upstream Caddy bug.

Syntax

prometheus

For each zone that you want to see metrics for.

It optionally takes an address where the metrics are exported, the default is localhost:9135. The metrics path is fixed to /metrics.

Examples