snapshot of https://github.com/ory/kratos.git (master, 2026-09-15; blobs > 131072B omitted)

oryx/resilience/retry.go

@@ -0,0 +1,39 @@
+// Copyright © 2023 Ory Corp
+// SPDX-License-Identifier: Apache-2.0
+
+// Package resilience provides helpers for dealing with resilience.
+package resilience
+
+import (
+	"time"
+
+	"github.com/pkg/errors"
+
+	"github.com/ory/x/logrusx"
+)
+
+// Retry executes a f until no error is returned or failAfter is reached.
+func Retry(logger *logrusx.Logger, maxWait time.Duration, failAfter time.Duration, f func() error) (err error) {
+	var lastStart time.Time
+	err = errors.New("did not connect")
+	loopWait := time.Millisecond * 100
+	retryStart := time.Now().UTC()
+	for retryStart.Add(failAfter).After(time.Now().UTC()) {
+		lastStart = time.Now().UTC()
+		if err = f(); err == nil {
+			return nil
+		}
+
+		if lastStart.Add(maxWait * 2).Before(time.Now().UTC()) {
+			retryStart = time.Now().UTC()
+		}
+
+		logger.WithError(err).Infof("Retrying in %f seconds...", loopWait.Seconds())
+		time.Sleep(loopWait)
+		loopWait = loopWait * time.Duration(int64(2))
+		if loopWait > maxWait {
+			loopWait = maxWait
+		}
+	}
+	return err
+}