Bump Go version (#4398)

.github/workflows/go.yaml

@@ -51,7 +51,7 @@ jobs:
         uses: golangci/golangci-lint-action@1e7e51e771db61008b38414a730f564565cf7c20
         with:
           only-new-issues: true
-          version: v2.5.0
+          version: v2.11.2
 
   generate:
     runs-on: ubuntu-latest

Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM --platform=$BUILDPLATFORM golang:1.25.3 AS builder
+FROM --platform=$BUILDPLATFORM golang:1.26.1 AS builder
 
 WORKDIR /workspace
 

Makefile

@@ -62,7 +62,7 @@ endif
 all: manager
 
 lint:
-	docker run --rm -v $(PWD):/app -w /app golangci/golangci-lint:v2.5.0 golangci-lint run
+	docker run --rm -v $(PWD):/app -w /app golangci/golangci-lint:v2.11.2 golangci-lint run
 
 GO_TEST_ARGS ?= -short
 

controllers/actions.summerwind.net/autoscaling.go

@@ -54,7 +54,7 @@ func (r *HorizontalRunnerAutoscalerReconciler) suggestDesiredReplicas(ghc *arcgi
 	case v1alpha1.AutoscalingMetricTypePercentageRunnersBusy:
 		suggested, err = r.suggestReplicasByPercentageRunnersBusy(ghc, st, hra, primaryMetric)
 	default:
-		return nil, fmt.Errorf("validating autoscaling metrics: unsupported metric type %q", primaryMetric)
+		return nil, fmt.Errorf("validating autoscaling metrics: unsupported metric type %q", primaryMetric.Type)
 	}
 
 	if err != nil {

github/actions/client.go

@@ -256,7 +256,7 @@ func (c *Client) Identifier() string {
 		identifier += fmt.Sprintf(
 			"appID:%q,installationID:%q,key:%q",
 			c.creds.AppCreds.AppID,
-			c.creds.AppCreds.AppInstallationID,
+			strconv.FormatInt(c.creds.AppCreds.AppInstallationID, 10),
 			c.creds.AppCreds.AppPrivateKey,
 		)
 	}

go.mod

@@ -1,6 +1,6 @@
 module github.com/actions/actions-runner-controller
 
-go 1.25.3
+go 1.26.1
 
 require (
 	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.20.0

test/e2e/e2e_test.go

@@ -1106,7 +1106,7 @@ func installActionsWorkflow(t *testing.T, testName, runnerLabel, testResultCMNam
 				testing.Step{
 					Uses: "actions/setup-go@v3",
 					With: &testing.With{
-						GoVersion: "1.25.1",
+						GoVersion: "1.26.1",
 					},
 				},
 			)