Enable reporting of normalized SLO endpoint in prober. (#401)

Signed-off-by: Simon Kent <[email protected]> Signed-off-by: Simon Kent <[email protected]>
sigstore · Oct 4, 2022 · 037af76 · 037af76
1 parent eceb1be
commit 037af76
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Showing 2 changed files with 14 additions and 5 deletions.
diff --git a/cmd/prober/endpoints.go b/cmd/prober/endpoints.go
@@ -20,10 +20,11 @@ var (
 )
 
 type ReadProberCheck struct {
-	Endpoint string            `json:"endpoint"`
-	Method   string            `json:"method"`
-	Body     string            `json:"body"`
-	Queries  map[string]string `json:"queries"`
+	Endpoint    string            `json:"endpoint"`
+	Method      string            `json:"method"`
+	Body        string            `json:"body"`
+	Queries     map[string]string `json:"queries"`
+	SLOEndpoint string            `json:"slo-endpoint"`
 }
 
 var RekorEndpoints = []ReadProberCheck{

diff --git a/cmd/prober/prober.go b/cmd/prober/prober.go
@@ -155,7 +155,15 @@ func observeRequest(host string, r ReadProberCheck) error {
 	}
 	defer resp.Body.Close()
 
-	exportDataToPrometheus(resp, host, r.Endpoint, r.Method, latency)
+	// Report the normalized SLO endpoint to prometheus if
+	// one is specified. This allows us to report metrics for
+	// "/api/v1/log/entries/{entryUUID}" instead of
+	// "/api/v1/log/entries/<literal uuid>.
+	sloEndpoint := r.SLOEndpoint
+	if sloEndpoint == "" {
+		sloEndpoint = r.Endpoint
+	}
+	exportDataToPrometheus(resp, host, sloEndpoint, r.Method, latency)
 	return nil
 }