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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.
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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