diff options
Diffstat (limited to 'metrics.go')
| -rw-r--r-- | metrics.go | 39 |
1 files changed, 3 insertions, 36 deletions
diff --git a/metrics.go b/metrics.go index 8a502601b..325006fbf 100644 --- a/metrics.go +++ b/metrics.go @@ -2,8 +2,8 @@ package caddy import ( "net/http" - "strconv" + "github.com/caddyserver/caddy/v2/internal/metrics" "github.com/prometheus/client_golang/prometheus" "github.com/prometheus/client_golang/prometheus/collectors" "github.com/prometheus/client_golang/prometheus/promauto" @@ -45,8 +45,8 @@ func instrumentHandlerCounter(counter *prometheus.CounterVec, next http.Handler) d := newDelegator(w) next.ServeHTTP(d, r) counter.With(prometheus.Labels{ - "code": sanitizeCode(d.status), - "method": sanitizeMethod(r.Method), + "code": metrics.SanitizeCode(d.status), + "method": metrics.SanitizeMethod(r.Method), }).Inc() }) } @@ -66,36 +66,3 @@ func (d *delegator) WriteHeader(code int) { d.status = code d.ResponseWriter.WriteHeader(code) } - -func sanitizeCode(s int) string { - switch s { - case 0, 200: - return "200" - default: - return strconv.Itoa(s) - } -} - -// Only support the list of "regular" HTTP methods, see -// https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods -var methodMap = map[string]string{ - "GET": http.MethodGet, "get": http.MethodGet, - "HEAD": http.MethodHead, "head": http.MethodHead, - "PUT": http.MethodPut, "put": http.MethodPut, - "POST": http.MethodPost, "post": http.MethodPost, - "DELETE": http.MethodDelete, "delete": http.MethodDelete, - "CONNECT": http.MethodConnect, "connect": http.MethodConnect, - "OPTIONS": http.MethodOptions, "options": http.MethodOptions, - "TRACE": http.MethodTrace, "trace": http.MethodTrace, - "PATCH": http.MethodPatch, "patch": http.MethodPatch, -} - -// sanitizeMethod sanitizes the method for use as a metric label. This helps -// prevent high cardinality on the method label. The name is always upper case. -func sanitizeMethod(m string) string { - if m, ok := methodMap[m]; ok { - return m - } - - return "OTHER" -} |