Do not set Memory limit on podman when cgroup is v1

pkg/dev/podmandev/pod.go

@@ -32,7 +32,7 @@ const (
 	portForwardingHelperImage         = "quay.io/devfile/base-developer-image@sha256:27d5ce66a259decb84770ea0d1ce8058a806f39dfcfeed8387f9cf2f29e76480"
 )
 
-func createPodFromComponent(
+func (o *DevClient) createPodFromComponent(
 	ctx context.Context,
 	debug bool,
 	buildCommand string,
@@ -55,6 +55,18 @@ func createPodFromComponent(
 	if err != nil {
 		return nil, nil, err
 	}
+
+	podmanCaps, err := o.podmanClient.GetCapabilities()
+	if err != nil {
+		return nil, nil, err
+	}
+
+	if !podmanCaps.Cgroupv2 {
+		for i := range podTemplate.Spec.Containers {
+			delete(podTemplate.Spec.Containers[i].Resources.Limits, corev1.ResourceMemory)
+		}
+	}
+
 	containers := podTemplate.Spec.Containers
 	if len(containers) == 0 {
 		return nil, nil, fmt.Errorf("no valid components found in the devfile")

pkg/dev/podmandev/pod_test.go

@@ -7,13 +7,15 @@ import (
 	"github.com/devfile/api/v2/pkg/apis/workspaces/v1alpha2"
 	"github.com/devfile/library/v2/pkg/devfile/parser"
 	"github.com/devfile/library/v2/pkg/devfile/parser/data"
+	"github.com/golang/mock/gomock"
 	"github.com/google/go-cmp/cmp"
 	"github.com/google/go-cmp/cmp/cmpopts"
 
 	"github.com/redhat-developer/odo/pkg/api"
 	"github.com/redhat-developer/odo/pkg/labels"
 	"github.com/redhat-developer/odo/pkg/libdevfile/generator"
 	odocontext "github.com/redhat-developer/odo/pkg/odo/context"
+	"github.com/redhat-developer/odo/pkg/podman"
 	"github.com/redhat-developer/odo/pkg/version"
 
 	corev1 "k8s.io/api/core/v1"
@@ -143,11 +145,12 @@ func Test_createPodFromComponent(t *testing.T) {
 		customAddress        string
 	}
 	tests := []struct {
-		name        string
-		args        args
-		wantPod     func(basePod *corev1.Pod) *corev1.Pod
-		wantFwPorts []api.ForwardedPort
-		wantErr     bool
+		name         string
+		capabilities podman.Capabilities
+		args         args
+		wantPod      func(basePod *corev1.Pod) *corev1.Pod
+		wantFwPorts  []api.ForwardedPort
+		wantErr      bool
 	}{
 		{
 			name: "basic component without command / forwardLocalhost=false",
@@ -237,7 +240,10 @@ func Test_createPodFromComponent(t *testing.T) {
 			},
 		},
 		{
-			name: "basic component + memory limit / forwardLocalhost=false",
+			name: "basic component + memory limit / forwardLocalhost=false, cgroup=v2",
+			capabilities: podman.Capabilities{
+				Cgroupv2: true,
+			},
 			args: args{
 				devfileObj: func() parser.DevfileObj {
 					data, _ := data.NewDevfileData(string(data.APISchemaVersion200))
@@ -261,7 +267,34 @@ func Test_createPodFromComponent(t *testing.T) {
 			},
 		},
 		{
-			name: "basic component + memory limit / forwardLocalhost=true",
+			name: "basic component + memory limit / forwardLocalhost=false, cgroup=v1",
+			capabilities: podman.Capabilities{
+				Cgroupv2: false,
+			},
+			args: args{
+				devfileObj: func() parser.DevfileObj {
+					data, _ := data.NewDevfileData(string(data.APISchemaVersion200))
+					_ = data.AddCommands([]v1alpha2.Command{command})
+					cmp := baseComponent.DeepCopy()
+					cmp.Container.MemoryLimit = "1Gi"
+					_ = data.AddComponents([]v1alpha2.Component{*cmp})
+					return parser.DevfileObj{
+						Data: data,
+					}
+				},
+				componentName: devfileName,
+				appName:       appName,
+			},
+			wantPod: func(basePod *corev1.Pod) *corev1.Pod {
+				pod := basePod.DeepCopy()
+				return pod
+			},
+		},
+		{
+			name: "basic component + memory limit / forwardLocalhost=true, cgroup=v2",
+			capabilities: podman.Capabilities{
+				Cgroupv2: true,
+			},
 			args: args{
 				devfileObj: func() parser.DevfileObj {
 					data, _ := data.NewDevfileData(string(data.APISchemaVersion200))
@@ -1412,7 +1445,13 @@ func Test_createPodFromComponent(t *testing.T) {
 			ctx = odocontext.WithApplication(ctx, tt.args.appName)
 			ctx = odocontext.WithComponentName(ctx, tt.args.componentName)
 			ctx = odocontext.WithWorkingDirectory(ctx, "/tmp/dir")
-			got, gotFwPorts, err := createPodFromComponent(
+			ctrl := gomock.NewController(t)
+			podmanClient := podman.NewMockClient(ctrl)
+			podmanClient.EXPECT().GetCapabilities().Return(tt.capabilities, nil)
+			client := NewDevClient(
+				nil, podmanClient, nil, nil, nil, nil, nil, nil,
+			)
+			got, gotFwPorts, err := client.createPodFromComponent(
 				ctx,
 				tt.args.debug,
 				tt.args.buildCommand,

pkg/dev/podmandev/reconcile.go

@@ -233,7 +233,7 @@ func (o *DevClient) deployPod(ctx context.Context, options dev.StartOptions, dev
 	spinner := log.Spinner("Deploying pod")
 	defer spinner.End(false)
 
-	pod, fwPorts, err := createPodFromComponent(
+	pod, fwPorts, err := o.createPodFromComponent(
 		ctx,
 		options.Debug,
 		options.BuildCommand,

pkg/podman/capabilities.go

@@ -0,0 +1,17 @@
+package podman
+
+type Capabilities struct {
+	Cgroupv2 bool
+}
+
+func (o *PodmanCli) GetCapabilities() (Capabilities, error) {
+	var result Capabilities
+	info, err := o.getInfo()
+	if err != nil {
+		return Capabilities{}, err
+	}
+	if info.Host.CgroupsVersion == "v2" {
+		result.Cgroupv2 = true
+	}
+	return result, nil
+}

pkg/podman/info.go

@@ -0,0 +1,35 @@
+package podman
+
+import (
+	"encoding/json"
+	"fmt"
+	"os/exec"
+
+	"k8s.io/klog"
+)
+
+// podmanInfo originates from https://github.com/containers/podman/blob/main/libpod/define/info.go
+type podmanInfo struct {
+	Host *HostInfo `json:"host"`
+}
+
+type HostInfo struct {
+	CgroupsVersion string `json:"cgroupVersion"`
+}
+
+func (o *PodmanCli) getInfo() (podmanInfo, error) {
+	cmd := exec.Command(o.podmanCmd, append(o.containerRunGlobalExtraArgs, "info", "--format", "json")...)
+	klog.V(3).Infof("executing %v", cmd.Args)
+	out, err := cmd.Output()
+	if err != nil {
+		if exiterr, ok := err.(*exec.ExitError); ok {
+			err = fmt.Errorf("%s: %s", err, string(exiterr.Stderr))
+		}
+		return podmanInfo{}, err
+	}
+
+	var result podmanInfo
+
+	err = json.Unmarshal(out, &result)
+	return result, err
+}

pkg/podman/interface.go

@@ -39,4 +39,7 @@ type Client interface {
 	ListAllComponents() ([]api.ComponentAbstract, error)
 
 	Version(ctx context.Context) (SystemVersionReport, error)
+
+	// GetCapabilities returns the capabilities of the underlying system
+	GetCapabilities() (Capabilities, error)
 }