make rbac max concurrent calls configurable via env variable

pkg/reconciler/openshift/tektonconfig/rbac.go

@@ -20,7 +20,9 @@ import (
 	"context"
 	"fmt"
 	"math"
+	"os"
 	"regexp"
+	"strconv"
 	"sync"
 	"time"
 
@@ -68,7 +70,7 @@ const (
 	rbacParamName               = "createRbacResource"
 	serviceAccountCreationLabel = "openshift-pipelines.tekton.dev/sa-created"
 
-	rbacMaxConcurrentCalls = 20
+	defaultRbacMaxConcurrentCalls = 20
 )
 
 var (
@@ -376,6 +378,17 @@ func (r *rbac) handleSCCInNamespace(ctx context.Context, ns *corev1.Namespace) e
 	return nil
 }
 
+func getRBACMaxCalls() int {
+	envValue := os.Getenv("OCP_RBAC_MAX_CONCURRENT_CALLS")
+	if envValue == "" {
+		return defaultRbacMaxConcurrentCalls
+	}
+	if parsedValue, err := strconv.Atoi(envValue); err == nil {
+		return parsedValue
+	}
+	return defaultRbacMaxConcurrentCalls
+}
+
 func (r *rbac) createResources(ctx context.Context) error {
 	logger := logging.FromContext(ctx)
 
@@ -402,7 +415,7 @@ func (r *rbac) createResources(ctx context.Context) error {
 	var wg sync.WaitGroup
 
 	// Start worker pool
-	for i := 0; i < rbacMaxConcurrentCalls; i++ {
+	for i := 0; i < getRBACMaxCalls(); i++ {
 		wg.Add(1)
 		go r.nsWorker(ctx, &wg, jobs, errCh)
 	}