try to figure out testing flags

Makefile

@@ -167,7 +167,7 @@ kind-e2e-chart-tests: ## Run helm chart e2e tests
 e2e-test-binary:  ## Build binary for e2e tests.
 	@build/run-in-docker.sh \
 		MAC_OS=$(MAC_OS) \
-		ginkgo build ./test/e2e
+		ginkgo build ./test/e2e -tags linux
 
 .PHONY: print-e2e-suite
 print-e2e-suite: e2e-test-binary ## Prints information about the suite of e2e tests.

pkg/util/runtime/cpu_linux.go

@@ -60,6 +60,10 @@ func NumCPU() int {
 	return int(math.Ceil(float64(cpuQuota) / float64(cpuPeriod)))
 }
 
+func IsCgroupAvaliable() bool {
+	return true
+}
+
 func getCgroupVersion() int64 {
 	// /sys/fs/cgroup/cgroup.controllers will not exist with cgroupsv1
 	if _, err := os.Stat("/sys/fs/cgroup/cgroup.controllers"); err == nil {

pkg/util/runtime/cpu_notlinux.go

@@ -27,3 +27,7 @@ import (
 func NumCPU() int {
 	return runtime.NumCPU()
 }
+
+func IsCgroupAvaliable() bool {
+	return false
+}

test/e2e/cgroups/cgroups.go

@@ -1,58 +0,0 @@
-/*
-Copyright 2020 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package cgroups
-
-import (
-	"log"
-	"os"
-
-	"github.com/onsi/ginkgo/v2"
-	"github.com/stretchr/testify/assert"
-
-	"k8s.io/ingress-nginx/test/e2e/framework"
-
-	"k8s.io/ingress-nginx/pkg/util/runtime"
-)
-
-var _ = framework.IngressNginxDescribeSerial("[CGroups] cgroups", func() {
-	f := framework.NewDefaultFramework("cgroups")
-
-	ginkgo.BeforeEach(func() {
-		f.NewEchoDeployment()
-		f.NewSlowEchoDeployment()
-	})
-
-	ginkgo.It("detects cgroups version v1", func() {
-		assert.Equal(ginkgo.GinkgoT(), runtime.getCgroupVersion(), 1)
-	})
-
-	ginkgo.It("detects number of CPUs properly in cgroups v1", func() {
-		assert.Equal(ginkgo.GinkgoT(), runtime.NumCPU(), -1)
-	})
-
-	ginkgo.It("detects cgroups version v2", func() {
-		// create cgroups2 files
-		if err := os.MkdirAll("a/b/c/d", os.ModePerm); err != nil {
-			log.Fatal(err)
-		}
-
-	})
-
-	ginkgo.It("detects number of CPUs properly in cgroups v2", func() {
-		assert.Equal(ginkgo.GinkgoT(), runtime.NumCPU(), -1)
-	})
-})