feat: add cgroups v2 metrics proto bindings

Author: tzneal

crates/shim-protos/build.rs

@@ -45,6 +45,12 @@ fn main() {
         false,
     );
 
+    genmodule(
+        "cgroups_v2",
+        &["vendor/github.com/containerd/cgroups/cgroup2/stats/metrics.proto"],
+        false,
+    );
+
     genmodule(
         "stats",
         &["vendor/microsoft/hcsshim/cmd/containerd-shim-runhcs-v1/stats/stats.proto"],

crates/shim-protos/src/cgroups_v2.rs

@@ -0,0 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
+pub mod metrics {
+    include!(concat!(env!("OUT_DIR"), "/cgroups_v2/metrics.rs"));
+}

crates/shim-protos/src/lib.rs

@@ -21,6 +21,7 @@ pub use protobuf;
 pub use ttrpc;
 
 pub mod cgroups;
+pub mod cgroups_v2;
 pub mod events;
 #[cfg(feature = "sandbox")]
 mod sandbox;