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ad221f4b2a
Tests updated as well and all the middleware. And Prometheus renamed to metrics (directive is still prometheus).
35 lines
993 B
Markdown
35 lines
993 B
Markdown
# prometheus
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This module enables prometheus metrics for CoreDNS.
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The following metrics are exported:
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* coredns_dns_request_count_total
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* coredns_dns_request_duration_seconds
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* coredns_dns_response_size_bytes
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* coredns_dns_response_rcode_count_total
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Each counter has a label `zone` which is the zonename used for the request/response,
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and a label `qtype` which old the query type.
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The `response_rcode_count_total` has an extra label `rcode` which holds the rcode
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of the response.
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If monitoring is enabled queries that do not enter the middleware chain are exported
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under the fake domain "dropped" (without a closing dot).
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Restarting CoreDNS will stop the monitoring. This is a bug. Also [this upstream
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Caddy bug](https://github.com/mholt/caddy/issues/675).
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## Syntax
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~~~
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prometheus
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~~~
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For each zone that you want to see metrics for.
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It optionally takes an address where the metrics are exported, the default
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is `localhost:9135`. The metrics path is fixed to `/metrics`.
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## Examples
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