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Sanitize metric keys for Prometheus

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This commit is contained in:
Christopher Hoskin 2018-11-07 12:44:10 +00:00
parent bb3cff5744
commit d0e1324dba
1 changed files with 6 additions and 0 deletions
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6
libraries/metrics/metrics.coffee
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@ -32,11 +32,15 @@ module.exports = Metrics =
res.end(Register.metrics())
)
sanitizeKey: (key) ->
key.replace /[^a-zA-Z0-9]/g, "_"
set : (key, value, sampleRate = 1)->
statsd.set buildKey(key), value, sampleRate
inc : (key, sampleRate = 1)->
statsd.increment buildKey(key), sampleRate
key = this.sanitizeKey(key)
if !counters[key]
counters[key] = new prom.Counter({
name: key,
@ -63,6 +67,7 @@ module.exports = Metrics =
gauge : (key, value, sampleRate = 1)->
statsd.gauge buildKey(key), value, sampleRate
key = this.sanitizeKey(key)
if !gauges[key]
gauges[key] = new prom.Gauge({
name: key,
@ -73,6 +78,7 @@ module.exports = Metrics =
globalGauge: (key, value, sampleRate = 1)->
statsd.gauge buildGlobalKey(key), value, sampleRate
key = this.sanitizeKey(key)
if !gauges[key]
gauges[key] = new prom.Gauge({
name: key,