Merge pull request #127 from giuseppe/fix-cgroup-default

config: default to cgroupns="host" on cgroup v1

common/pkg/config/default.go

@@ -141,13 +141,18 @@ func DefaultConfig() (*Config, error) {
 		netns = "slirp4netns"
 	}
 
+	cgroupNS := "host"
+	if cgroup2, _ := cgroupv2.Enabled(); cgroup2 {
+		cgroupNS = "private"
+	}
+
 	return &Config{
 		Containers: ContainersConfig{
 			Devices:             []string{},
 			Volumes:             []string{},
 			Annotations:         []string{},
 			ApparmorProfile:     DefaultApparmorProfile,
-			CgroupNS:            "private",
+			CgroupNS:            cgroupNS,
 			Cgroups:             "enabled",
 			DefaultCapabilities: DefaultCapabilities,
 			DefaultSysctls:      []string{},