Cumulative improvements for CI troubleshooting (#2996)

* feat: show more error information in zb output

Signed-off-by: Andrei Aaron <aaaron@luxoft.com>

* chore(ci): gc stress tests to save logs as artifacts

Signed-off-by: Andrei Aaron <aaaron@luxoft.com>

* chore: add benchmark results to job summaries

Signed-off-by: Andrei Aaron <aaaron@luxoft.com>

* fix: count and show zb errors

Signed-off-by: Andrei Aaron <aaaron@luxoft.com>

* ci: fix the flaky coverage of the redis logger

Signed-off-by: Andrei Aaron <aaaron@luxoft.com>

---------

Signed-off-by: Andrei Aaron <aaaron@luxoft.com>

pkg/api/config/redis/redis.go

@@ -16,16 +16,16 @@ import (
 
 var once sync.Once //nolint: gochecknoglobals // redis.SetLogger modifies an unprotected global variable
 
-type redisLogger struct {
-	log log.Logger
+type RedisLogger struct {
+	Log log.Logger
 }
 
-func (r redisLogger) Printf(ctx context.Context, format string, v ...interface{}) {
-	r.log.Debug().Msgf(format, v...)
+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
+	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

pkg/api/config/redis/redis_test.go

@@ -1,6 +1,8 @@
 package rediscfg_test
 
 import (
+	"context"
+	"io"
 	"os"
 	"path"
 	"testing"
@@ -15,6 +17,25 @@ import (
 	"zotregistry.dev/zot/pkg/log"
 )
 
+func TestRedisLogger(t *testing.T) {
+	Convey("Print using Redis logger", t, func() {
+		logFile, err := os.CreateTemp(t.TempDir(), "zot-log*.txt")
+		So(err, ShouldBeNil)
+
+		logger := log.NewLogger("debug", logFile.Name())
+		writers := io.MultiWriter(os.Stdout, logFile)
+		logger.Logger = logger.Output(writers)
+
+		rlog := rediscfg.RedisLogger{logger}
+		rlog.Printf(context.Background(), "this is a rest string")
+
+		content, err := os.ReadFile(logFile.Name())
+		So(err, ShouldBeNil)
+
+		So(string(content), ShouldContainSubstring, "this is a rest string")
+	})
+}
+
 func TestRedisOptions(t *testing.T) {
 	Convey("Test redis initialization", t, func() {
 		log := log.NewLogger("debug", "")