feat: add operational prometheus metrics #342
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refs: itzg#34 I had to split c.metrics.Connections to 2 different metrics because prometheus requires a fixed number of labels, it wasn't possible to do the following: c.metrics.Connections.With("side", "frontend").Add(1) c.metrics.Connections.With("side", "backend", "host", resolvedHost).Add(1)
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Please note for existing metrics backends this will not affect the labels as the 2 new metrics are split from the initial counter like this |
itzg
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refs: #34
I had to split c.metrics.Connections to 2 different metrics because prometheus requires a fixed number of labels, it wasn't possible to do the following:
c.metrics.Connections.With("side", "frontend").Add(1)
c.metrics.Connections.With("side", "backend", "host", resolvedHost).Add(1)