feat(redis): call redis.SetLogger() with the zot logger as parameter

Signed-off-by: Andrei Aaron <[email protected]>

pkg/api/config/redis/redis.go

@@ -1,8 +1,10 @@
 package rediscfg
 
 import (
+	"context"
 	"fmt"
 	"strings"
+	"sync"
 	"time"
 
 	"github.com/redis/go-redis/v9"
@@ -12,7 +14,19 @@ import (
 	"zotregistry.dev/zot/pkg/log"
 )
 
+var once sync.Once //nolint: gochecknoglobals // redis.SetLogger modifies an unprotected global variable
+
+type redisLogger struct {
+	log log.Logger
+}
+
+func (r redisLogger) Printf(ctx context.Context, format string, v ...interface{}) {
+	r.log.Debug().Msgf(format, v...)
+}
+
 func GetRedisClient(redisConfig map[string]interface{}, log log.Logger) (redis.UniversalClient, error) {
+	once.Do(func() { redis.SetLogger(redisLogger{log}) }) // call redis.SetLogger only once
+
 	// go-redis supports connecting via the redis uri specification (more convenient than parameter parsing)
 	// Note failover/Sentinel cannot be configured via URL parsing at the moment
 	if val, ok := redisConfig["url"]; ok {