Implement success ratio in health checks

caddyserver · Apr 15, 2023 · 497bfd0 · 497bfd0
1 parent 2a29793
commit 497bfd0
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/modules/caddyhttp/reverseproxy/hosts.go b/modules/caddyhttp/reverseproxy/hosts.go
@@ -84,6 +84,12 @@ func (u *Upstream) Healthy() bool {
 	if healthy && u.healthCheckPolicy != nil {
 		healthy = u.Host.Fails() < u.healthCheckPolicy.MaxFails
 	}
+	if healthy && u.healthCheckPolicy != nil &&
+		u.healthCheckPolicy.MinSuccessRatio > 0 &&
+		u.Host.Successes() >= u.healthCheckPolicy.MinSuccesses {
+		healthRatio := float64(u.Host.Successes()) / float64(u.Host.Fails())
+		healthy = healthRatio < float64(u.healthCheckPolicy.MinSuccessRatio)
+	}
 	if healthy && u.cb != nil {
 		healthy = u.cb.OK()
 	}