cgroupv2: create cgroup manager on startup (WIP)

go.mod

@@ -8,7 +8,10 @@ require (
 	github.com/alicebob/miniredis v2.5.0+incompatible
 	github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239
 	github.com/boltdb/bolt v1.3.1
+	github.com/cilium/ebpf v0.6.2 // indirect
 	github.com/codeskyblue/go-sh v0.0.0-20190412065543-76bd3d59ff27
+	github.com/containerd/cgroups v1.0.1
+	github.com/coreos/go-systemd/v22 v22.3.2 // indirect
 	github.com/dennwc/btrfs v0.0.0-20190517175702-d917b30ff035
 	github.com/dgraph-io/badger/v2 v2.2007.2
 	github.com/docker/go-units v0.4.0
@@ -18,14 +21,18 @@ require (
 	github.com/gomodule/redigo v1.8.2 // indirect
 	github.com/imdario/mergo v0.3.9
 	github.com/moby/moby v20.10.7+incompatible
+	github.com/opencontainers/runtime-spec v1.0.3-0.20210326190908-1c3f411f0417 // indirect
 	github.com/pkg/errors v0.9.1
 	github.com/pkg/profile v1.4.0
 	github.com/ryszard/goskiplist v0.0.0-20150312221310-2dfbae5fcf46
+	github.com/sirupsen/logrus v1.8.1 // indirect
 	github.com/smartystreets/goconvey v1.6.4
 	github.com/syndtr/goleveldb v1.0.0
 	github.com/urfave/cli v1.22.3
 	github.com/yuin/gopher-lua v0.0.0-20191220021717-ab39c6098bdb // indirect
-	golang.org/x/sys v0.0.0-20200519105757-fe76b779f299
+	golang.org/x/net v0.0.0-20201224014010-6772e930b67b // indirect
+	golang.org/x/sys v0.0.0-20210426230700-d19ff857e887
+	google.golang.org/protobuf v1.26.0 // indirect
 	gopkg.in/op/go-logging.v1 v1.0.0-20160211212156-b2cb9fa56473
 	gotest.tools/v3 v3.0.3 // indirect
 )