middleware/proxy: drop protcol in metric
This blows up prometheus (panic in CoreDNS) and is not that handy to have.
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2 changed files with 4 additions and 5 deletions
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@ -60,11 +60,10 @@ Currently supported are `dns` (i.e., standard DNS over UDP) and `https_google`.
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If monitoring is enabled (via the *prometheus* directive) then the following metric is exported:
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* coredns_proxy_request_count_total{protocol, zone, family}
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* coredns_proxy_request_duration_milliseconds{zone}
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This has some overlap with `coredns_dns_request_count_total{zone, proto, family}`, but allows for
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specifics on upstream query resolving. See the *prometheus* documentation for more details.
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`protocol` is the protocol used to query the upstream.
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The metric shows the duration for a proxied request, the `zone` label is the **FROM** as specified
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in the configuration.
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## Examples
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@ -16,7 +16,7 @@ var (
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Name: "request_duration_milliseconds",
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Buckets: append(prometheus.DefBuckets, []float64{50, 100, 200, 500, 1000, 2000, 3000, 4000, 5000, 10000}...),
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Help: "Histogram of the time (in milliseconds) each request took.",
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}, []string{"protocol", "zone"})
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}, []string{"zone"})
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)
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// OnStartup sets up the metrics on startup. This is done for all proxy protocols.
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