chore(runtime): bump go to 1.25.0 and deprecate automaxprocs (#2145)

Author: weisdd

Toolchain.mk

@@ -9,7 +9,7 @@ CONTROLLER_GEN_VERSION = v0.17.3
 CRDOC_VERSION = v0.6.4
 DART_SASS_VERSION = 1.86.0
 ENVTEST_VERSION = v0.21.0
-GOLANGCI_LINT_VERSION = v2.3.0
+GOLANGCI_LINT_VERSION = v2.4.0
 HELM_DOCS_VERSION = 1.14.2
 HELM_VERSION = v3.17.3
 HUGO_VERSION = 0.134.3

go.mod

@@ -1,6 +1,6 @@
 module github.com/grafana/grafana-operator/v5
 
-go 1.24.2
+go 1.25.0
 
 require (
 	github.com/KimMachineGun/automemlimit v0.7.4
@@ -18,7 +18,6 @@ require (
 	github.com/spyzhov/ajson v0.9.6
 	github.com/stretchr/testify v1.10.0
 	github.com/testcontainers/testcontainers-go v0.38.0
-	go.uber.org/automaxprocs v1.6.0
 	k8s.io/api v0.33.3
 	k8s.io/apimachinery v0.33.3
 	k8s.io/client-go v0.33.3
@@ -86,6 +85,7 @@ require (
 	go.opentelemetry.io/otel v1.35.0 // indirect
 	go.opentelemetry.io/otel/metric v1.35.0 // indirect
 	go.opentelemetry.io/otel/trace v1.35.0 // indirect
+	go.uber.org/automaxprocs v1.6.0 // indirect
 	golang.org/x/crypto v0.39.0 // indirect
 	golang.org/x/sync v0.15.0 // indirect
 	golang.org/x/tools v0.33.0 // indirect

main.go

@@ -20,15 +20,13 @@ import (
 	"context"
 	"flag"
 	"fmt"
-	"log"
 	"log/slog"
 	"os"
 	"os/signal"
 	"strings"
 	"syscall"
 
 	"github.com/KimMachineGun/automemlimit/memlimit"
-	"go.uber.org/automaxprocs/maxprocs"
 	uberzap "go.uber.org/zap"
 
 	"github.com/go-logr/logr"
@@ -44,6 +42,7 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/config"
 	"sigs.k8s.io/controller-runtime/pkg/webhook"
+
 	// Import all Kubernetes client auth plugins (e.g. Azure, GCP, OIDC, etc.)
 	// to ensure that exec-entrypoint and run can make use of them.
 	_ "k8s.io/client-go/plugin/pkg/client/auth"
@@ -141,12 +140,6 @@ func main() { // nolint:gocyclo
 	// Optimize Go runtime based on CGroup limits (GOMEMLIMIT, sets a soft memory limit for the runtime)
 	memlimit.SetGoMemLimitWithOpts(memlimit.WithLogger(slogger)) //nolint:errcheck
 
-	// Optimize Go runtime based on CGroup limits (GOMAXPROCS, limits the number of operating system threads that can execute user-level Go code simultaneously)
-	_, err := maxprocs.Set(maxprocs.Logger(log.Printf))
-	if err != nil {
-		setupLog.Error(err, "failed to adjust GOMAXPROCS")
-	}
-
 	// Detect environment variables
 	watchNamespace, _ := os.LookupEnv(watchNamespaceEnvVar)
 	watchNamespaceSelector, _ := os.LookupEnv(watchNamespaceEnvSelector)